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(2) ∠. H.. m-ade. habitpat, as. to. c=omforming Fo7dr SPeCies feeding. commensal,. Diatoms,. opinion. here with. habit左nd. form:. their. asymmetrical. developed･ their. and. by. carpus. a. dactylus. the long. is four. third. and. and the. distal. portion. rows･. In. pleurobranchiae. kominatoensis indicus p･ 85;. The. Y.. is. rostrum. terminating in. both､. l･7. to. margins. slightly. an?ular･ipferior. In. the. number.. (Text-fig.. 2;. 2;. and. the. and. palm of. are. length. rather. pereiopods,. has. three. rather a. carries. short In the. side. with. two. comb-like of the. pairs. tergum.. seventh. D.M.,. 9,. 10,. ].960, p.. forms. The. ridge. the. low. a. makes. ridge groove. is variable,. being. portion.. The. rostrum. of. 1964,. 149;. ll.. and. at. measuring. in. in. setae. the. third 9-18 in. number. proximal. the. of. shown. the. the. are. exopodite Ⅰ. ]Ⅱ. 1. 1. i.. Setobrancbia Exopodite. 1 *. Epipodite,. 1. 1 **. setae,. which the. of the. fifth. shown. is. 3 and. the. (Text一名g. situations. branchial. formula. below: Ⅴ. Ⅵ. Ⅶ. 1.. 1. 1. 1.*. 1｡*. 1. 1,. 1**. 1**. Rudimental. 1. -. in. pereiopod. pereiopod. 2. ⅠⅤ. obtusely. is variable. fourth. The. rudimentary.. Text一丘g.. Pleurobrancbia Mastigobranchia. in. latter. the. as are. (Text-fig･ 2; ll, 1la), the. propodus. also. are. Ⅱ. of. equidistant. but in. angle. pereiopod. and. number,. exopodites. arrangement. the. found. are. distal. and. with. also. 12a), 8-12. 13, 13a), 8-13. branchiae. the. propodus. setae. 12,. three. is. is furnished. Such. is. The is slightly shorter telson than rounded. its is length 2.8 to 4.0 times 10) and being variable, fingers distal In the Brst the the perelOPOd, margin.. than. margin. freelyえnd. 2;. of. width shorter. broad,. figs.. descending. The. rostrum･ as. margln. (Text-fig. as. the. the. with. 1942. (Text一色g.1).. eyes. or. the ventral. BANNER,. & 151,. p.. rather. the. symmetrical. figs. 1, 2. A.H.. S･, 1968,. lanceolate,. long. as. pterygostomian. ur6pod. MIYAKE,. of. 82,. p.. BANNER,. KuBO,. infra-. pereiopod. ischium. the. as. the. move. propodus branchial situation, there are tergum, but non on tboracic the. I., 1942,. behind. slightly. 2･4 times. long. &. can. is furnished. kominatoensis. Algae,. on. jointed. portion in. tooth. the. of. (Nee CouT丘RE),. MIYA,. distal. a. is. succeeding distal the. s6a urchin. smooth,. second. their. observed. the. fourth. KuBO,. the. are. either. chela. pereiopod,. has. Athanas Athanas Athanas. In. of. feeding. palm. The. its inferior. propodus. the. on. the. which. JOlnted･. the. in two. Spines. are. the. downwards･. fourth. the. perelOpOds. in. another. omnivorous,. rot'ative;. by. kept. In. spine last pereiopod, hairs. is well. and. spines･. short. Brst. is biunguiculated. movable. are. one. between. live. They. articulation,. is always. its carpns. and. They. The. chela. cap-shaped. movable丘nger. slender. b･. to. resemble. Crustaceans, planktonic which In all species, the is carapace. and. is well. spine. closely a.. host･. own. of stomach∴c.. corneal. the. their. dealt. Foraminifera. contents. SuzuKI. of.
(3) Four. AIpheid. belonging. Shrimps. to. Genus. the. Athanas. Ill,/.^､Lq. 1.. Text一石g.. Athanas in. Above,. pale. The. the. on. stripe such line of violet. the. tip;. in. carapace. band. such. This. the. on. coll.. Table. 1. pace. by. broad. a. lack. specimen. longitudinal. a且ne the. near. with. end. the. of. near band white less than l･70mm. a. the. Or. intertidal. the. on. Anthocidaris. the. them. maximum. 124= specimens. author. every. month. (minimum. and. maximum. rocky living. ovigerous,. in. Manazuru. ovigerous,. during. length);. 1.57mm-6｡29mm. are. size are. of. spines.. 1 specimen in carapace (5.14mm 2, 1966, coll･ Mr･ MuRAOKA, K･ and. zone. (A. AGASSIZ),. crassisPina. between. Minabe. (Wakayama. size. Pref･),. and maximum (minimum Kominato Pref.), (Chiba length);. the. is. is. (Kanagawa. 1967-1968. the. years. are. 3.69mm-4.67mm. cara-. as. shown. (p. 17).. length); 14. Some. there. rostrum. uncommon. reglOn. (minimum. ; among. by. 3 specimens pace. body･. reglOn. There. violet.. has pereiopod of the丘rst in the shrimp measuring. not. urchin,. mouth. August. specimens. length). Pref.),. sea. examined:. Hachijy6-Island,. is. species with. to. either close Material. pace. of. 5.45mm. length.. associated. 513. view･. dark. carapace. apex. is indistinct. view.. inner. chela,. the. 232,. lateral. line of the. median. In the. No. male.. is uniformly. dorsal. the. Middle,. (right). shrimp. abdomen.. KuBO, functional. view.. other. movable且nger. Habitat: beach,. the. connecting. The. carapace.. the. living. on. stripe. white. length,. dorsal. Below,. Coloration:. kominatoensis. carapace. i=. specimens. the. con.. by. the. in. cara-. author･. 3｡26mm-6.06mm. size. are. type. locality,. in. cara-. March. 14, 1968,. author. the necessity. coll･. author.. Remarks:. Dr.. KuBO,. I., during. his lifetime,. toled. the.
(4) fl.. SuzuKI. 6. 1 2. 3. A. 5. ユ0. 8. 9 ⊂=ゴク. 可. Q. 称. ユ3. 1. こ亡二 ー. ＼. ユ2. nt. ＼＼や. -i-下､. ､k､. 去. 埼J㌔ Z. 哩. ＼. 演. ･*i. ユ3∂. 12a. lla. ＼. /. 戟 Text･丘g.. i･, 1st. 2.. Athanas. kominatoensis, 3,. No.. 232.. 3rd maxilliped antenna (×13); 2, 2nd antenna (×13); (×33); 4, 2nd maxil･ (×33); 5, 1st maxilliped (×33); 6, 2nd maxilla (×33); 7, 1st maxilla (×33); 8, a 9, 2nd an pereiopod with mandible (×33); setobranchia and epipodite (×18); 10, telson 1lタ3rd ; lla, the sameタdistal part (×18); (×18) pereiopod (×26) ; andヮropod distal 12, 4th perelOpOd part (×18); 12a, the same, (×26); 13, 5th pereiopod (×18) ; 1･3a, the distal same, part (x26)･ 1iped.
(5) Four. AIpheid. Shrimps. belonging. to. Genus. the. Athanas. b｢､ Se. o4. 7. 6. 5. 8. eX. CO. eP Text-fig.. 3-8. 3｡. Jchoracic. show. branchia,. to. this. portion By. the. carina. the. of. careful. carapace. is not. but. exteilt,. BANNER. &. as. BANNER. synonymous. 1. The. indicus. the. angular. with. first. is. pereiopod. dorsalis. Arete. indl:cus. epipodite;. Arete. iphia7WSSa pl.. 3,. intermedius. 1905b, MAN,. DE. fig.. ll; Yu,. the. 1910a,. 1931,. p.. p.. SIS,. figs.. 312;. fig.. dorsal. and. carina the. on. iscbium. the. MIYAI(E. (1968). of same. of. the. 2;. 12)･. the two. 2･ The while. the. comparing. features. validity. of A. kominatoensis. species. are. portion. outerdistal in A.. as. enumerated is rounded,. A. kominatoensis. Of. KロBO's. regarded. indicus. while of. palm. it is acutely. (CouTI豆RE, 1905). 1903,. 1956,. BANNER,. perelOpOd･. tlp.. indicus. p.. middle. visil⊃1e (Text-flg･. carefully. angular,. obtuse. 863,. there. locality. type. colour. Of. the. fourth. scarcely. the. rounded･. at. to. the. in. figure,. and. the. that. violet. confirmed. between. CouTI良RE,. indicus. ∀ar.. After. margln. pointed. CouT止RE,. &. MIYA. author. not. from. margln. and. A. indicus.. Athanas”. Arete. ep,. pleuro-. seta.. this. pterygostomian. of. posterior. minute. differen?e. sharply. Arete. the. is. the. it is angular,. and. 22,. where. no. of the rostrum ischium of the. the. line. (1960) and. two specimens, of these from The the latter･. of. are. description. obtained found author. a血e on. tip. the. the. above,. and present setaeis portion, fourth pereiopod, althoughit Ⅰ. obviously KロBO, overl､ooked. in A.. holes. br,. coxopodite;. orlglnal. on. of the specimen■s. a. follows:. co,. his. to. no､setae. and. enumerated. carapace. species. kominatoensis･. there. segment,. segment;. from. extending. examination. localities. other. 7 thoracic. According. species,. dorsal. the. Athanas. of. setobrancbia.. revise. is. part. respectively; (ⅠII-ⅤⅠⅠⅠ). segment. in attached; 2 pairs in 4 thoracic. but. thoracic. Of. are. pleurobranchia. se,. figure. Schematic. p.. 1911;. p. i.. 85.. 134,. 325.. 135. p.. 164;. 1915,. pls.. 3,. 4,軸.. ll;. 1922,. p..
(6) H.. 4,. Text･fig･. Alhanas in. SuzuKI. indicus. No.. (CouTI良RE),. length,. carapace. functional. R3-4,. 4.00mm. female.. 際. S. しJ. Y. -瑚. 6{ 9. 1. ･. 3 ユ0 /∫/ /. / I,. ′. /. ,i( I. ∫. /. l I. 早. I. J. 1. 軒. /. ll ＼ ＼. 翠. 2/i. 4 Text･fig.. 1, 1st liped. antenna. (×22);. 5,. interna. appendix. (×54); telson. (×22);. 8,. and. 2,. 1st uropod. mandible. 5.. 3rd. maxilliped (×22); 6, 1st. (stylamblys) found (×22); 9, (×10)･. maxilliped. indicus,. Athanas. on. (×22); maxilla. the. 2nd. inner maxilla. No.. 2nd. 3,. R3A.. (×22); side. (×22);. antenna. of. 7,. appendix. endopodite 10, 1st. (×22);. 4, 2nd. maxil･ and. masculina. of the pleopod. 2nd. pleopod. (×22);. ll...
(7) AIpheid. Four. belonging. Shrimps. to. Genus. the. Athanas. /. -_. JJJAy. 蛋. 1. し＼ー /. ヽ. ー. ＼. く. ＼ー_. 4. 謬. /. ノー. ＼ぐ': ＼二 ^. 2 ＼. -. 6. 二凌. 5. ､Y. 7. ＼t君. 5a. 丁サ7rT. 6.. Text-fjg. 1･, anterior 1st. 2nd the. part. pereippod, perelOpOd. an. with. distal. same,. (×10);. view. chela. lst. of. (×78);. No.. 2,. (×lD);. view. 3a,. indicus,. the. R3-4.. dorsal. same,. in. pereiopod. (×30) ; 5, 3rd (×30); 7, distal. a. epipod. part. Athanas. lateral. of car.apace, inner. 節. ＼. and setobrancbia 6, 4th pereiopod. (×30);. perelOpOd part. 3,. (×10); v享ew view (×10);. outer.. of. 5th. 4, 5a,. pereiopod. (×78).. デ 2. ㌔ ) 1. ヽ Text一石g.. 7.. Variation. Prominent 1, No. in. R3-2,. carapace. functional. 3.30mm length, male. in. found. teeth in. on. the. cutting. cutting. length,. carapace. functional. (×10).. the. male. edges. edges. are. functional. (×10) ;. 3, No･. of. the. lst. chela. one. of. the. male. male(× 10) ;. R3-3,. 3･35mm. Athanas. of. indicus.. characters.. 2, No, in. R3-5,. carapace. 2.10mm length,.
(8) t5. H.. Athanas. indicus 1964,. The. the. of. the. the long. as. as. than. slightly shorter. distal. outer. the. at. furnished formula. distal. the. In. the. of. Ⅱ. 1. Exopodite. 1. *. Coloration: on. greenish. sea. are pereiopod This species. in. mm-4A7mm. (minimum. and. (the Amami Remarks:. 3220. and. ternal. 3319. male as. regarded and its male phase･ in. A.. MIYA. Such. &. in their. caridian. aberrant･. In. the. characters a. and. Athanas Athanas. Variation species. which. scribed. below･. of. in. th'e､r帝:idth in. some. are. The. length. proximal. extent in. observed. size. 2.10. are. ovigerous. length), Yoron-. author.. females. second. of Nos.. (one. peopod,. indicus. is. 2467,. of the. ex-. they which hermaphrodite. functional until A. kominatoensis as the. female as. well. dorsalis.. Y･. &. MIYA. MIYA壬くE,. characters already. 3a).. are. masculina A･. oplnion,. maximum. three. the. on. some. be. the. appendix. species). acanthocarpus. MIYA,. acanthocarpus. 6;. It is associated. zone.. 3 specimens in carapace. the. reported. the. in. can. A.. rather fingers. The. stripe･. (Textl軸.. and. by. coll.. auther's. remain. phenomenon. acanthocarPus. (minimum among. carring. characters. and. side. (BLAINVILLE).. (1968). in. :. dorsal. tidal. which, 3･73mm-4･34mm. MIYAKE. Brancbial. Ⅶ. coloured the. July 24, 1967,. paper,. light. from. are. is. propodus. 1. the. collected. length);. Group),. 1**. orange. mathaei. size. 1**. light. 14 specimens. maximum. l* 1. with. was. carapace. 1. in. afine. coloured. examined:. Ⅵ. 1. brown. with. Echinometra. urchin,. Material. jima. side. V. 1.*. pointed. Rudimental. **. is purplish. lateral. each. of the丘rst Habitat: with. body. The. below. 2. 1. Epipodite,. the. in number.. shown. 1. fin,gersare. is sharply. ⅠV. 1.. 1. 6-17. shorter. 2.7-3.8 times. the. perelOpOds,. are. Setobrancbia. being. which. margin,. Ⅱ. 1. 3a),. three. exopodite. Ⅰ. Pleurobranchia Mastigobrancbia. first pereiopod,. inferior. the. on. arrangement. and. In. last. the. is angular. is slightly. telson. broad,. as. margins. is variable,. the. rostrum.. long. as. length. (Text-fig.6; 3,. palm. spines,. its. and. 149;. p.. slightly. the. of. times. pterygostomian. margin･. portion･. short. with. The. 1960,. terminating. margins. 2･7. to. (Text一名g･ 6; 1, 2). The. rounded. of the. width. l･8. D.M., 9, 10, ll.. ridge. in both. being. portion.. BANNER,. low. a. groove. is variable,. 良. 151,丘gs.. p1. forms. makes. (Text-fig･ 5; ll). uropod. A.H.. S･, 1968,. and. ridge. proximal. not. spiniform,. than. MIYAKE,. &. The. rostrum. at. measuring. BANNER,. synonymy), Y･. is lanceolate. eyes･. length. and. all. MIYA,. rostrum. behirld The. (Not 85;. p1. SuzuKI. of. of the portion｡. S･, 1968,. this. described. &. and. species also. p･ can. A.. 1968. 151,. flgS･. 10, ll, 12, be. also. dorsalis. is approximately. rostrum. There. MIYAKE,. is. a. bulge. at. the. 13. to. applied. which 1.8. will to. proximal. be. two. de_. 2.4 times portion.
(9) Four. AIpheid. Text･fig.. Above,. No.. R2-20, are. rostrum,. margln. the. that. of. is rounded.. palm and kominatoensis. the. on. number. except. except. pereiopods, formula. is found. visible ユit)t. beared. spines to 18 in. and. MIYA. &. functional. functional. is formed. the. A.. length,. carapace. Genus. the. acanthocarpus. length,. carapace. form. is. than. in. which. Such. mian. Athanas. to. Athanas. MIYAIくE. lateral. male, dorsal. male,. Below,. view. Colour. view.. patterns. dotting.. with. bulge. 8.. 3A8mm in. 3A6mm shown. of the flg. 8). the. R2-5,. belonging. Shrimps. the. by. normal. In. the丘rst. In the. first. of. long. the. of. I. three. II. ]Ⅱ. 1. 1.. i.. 1. 1. 1. Setobrancbia Exopodite *. Epipodite,. **. on. Ⅳ. Ⅴ. Ⅵ. 2. 1. 1. 1.*. 1.*. 1. 1. 1. 1**. 1**. Rudimental. variable,. distal. its. as. *. slightly. pereiopod, are. shown. 1. pterygosto-. ang､ular. in Text一色g.. are. exopodite. are. obtusely. spines. The. 4).. propodus. illustrated. are. 10;. and丘fth. each. Pleurol)rancbia. Mastigobranchia. latter. rostral. angers. the. fourth. third,. one,. (Text-fig.. the. of. margin. rather. and. pereiopod,. angle. inferior. arrangement. form. but. (Textridge in other16specimens,. the. of. in 6specimens. merely. distal. development. --. 9｡. shorter. as. well. the. as. short. being. ll. The portion. The branchial. follows:.
(10) 10. I.. SuzuKI. i. y 1. 4. 9b 2. 5. 恥J 腰 3. 9∂. 6. 9J. Qo. ll. や'%1. 558. L. 13a. ユ3. I. ど. ㌔ 1. 也 也. Text･fig.. 9.. Athanas. ddt 16. acanthocarPus,. No.. 17 R2-5.. 1,. 2nd antenna (×22); 2, 1st antenna (×22); 3, 3rd maxilliped (×22); 4, 2nd maxil1iped (×22); 5, 1st maxilliped (×22); 6, 2nd maxilla (×22); 7, mandible (×22); 8, lst maxilla in outer.view portion (×22) ; 9a, its distal (×22) ; 9, 5th pereiopod (×45) ; in inner 9b, the 10, 且th pereiopod ll, 3rdperelOpOd view (×45); (×22); (×22); samp 12, 2nd perelOpOd portion (×22) ; 13, carpal of the lst pereiopod (×22) ; 13a, the same, the. outer side 1･6, 1･st pleopod interna. (×30)･. 14, distal. (×22); (×30). ;. 17,. 2nd. part. pleopod. (×30);. of uropod with. an. appendix. 15,. telson, masculina. dorsal and. view an. (×30); appendix.
(11) Four. AIpheid. Shrimps. belonging. to. Athanas. Genus. the. 11. 7N. r. 4 ノブ. 1. 1, left lst the. 3. Text･fig･. 10･. cheliped,. inner. γentral. side. functional. inner. same. (×13) the. on. view. of. but. its lateral. brown. light. and. stripes.. with. brown. bands,. These. brownish･ Habitat: urchin, with. A.. indicus. Material. 2 specimens 9, 1967,. of. the. this. of. brown broad. are. vhite. the. (Texト丘g･ 10;. left. in. there. the. is. no. In. the. the. light. the orange. are. marked light. uniformly. Text一名g.. the. ln. associating sometimes,. shrimp,. two merus,. specimens,. are. pool,. dorsal. with. or white and merus. dotting. tide. The. some. stripes. the. on. marked. dactylus. with. yellowish. Bne. stripe are. ischium and. shown. (minimum. specimens among. and. 6. which,. maximum. 8.. sea with is collected. mm. 2.30. are. size are. specimens. July 24, 1967, colt. by the in carapace length), Manazuru. ovigerous,. author.. (Kanagawa. Pref.),. author. name. speci丘c. presence. R2-12,. host.. same. length);. the. in. 3,. process. R2-2,. few. a. Group),. coll. by. no. first pere10POd,. two丘ne. with. in. of. No.. is pale. shrimp. segment. propodus. found. process. (x13);. also No,. with. spots.. (BLAINVILLE).. 20. (2･64,3167 The. Remarks:. pereiopod. mathaei from.the. (the Amami. Yoron-jima. account. species. body. brown. pere10POds,. is. a. (×18).. surface.. marked. view. carpus. carapace,. of. In the. carpus,. is. part. rather. with is. there. male,. greenish a. inner. the. of. is. there. male,. side. abdominal. patterns. in carapace. mm-4･29mm. Sept.. the. examined:. the. dorsal. the marked. ･but colour. This. Echinometra. rostrum. is. pereiopod of the丘rst In other succeeding. propodus. the. fourth. and. are. chela. anteior. acanthocarpus.. cheliped,. ventral. of. light. There. on. spots. right. the. stage,. are. side. ･丘rst. brown. greenish carpus. The. view of. lst. functional. R217,. living. colour.. line.. median. No･. of. the. 2,. Athanas. of. functional. R2-2, in. process. portion. In. No･. (×12),. no. ; 4, lateral. proximal. Coloration: brown,. is. carapace. and. of. carpus. there. lst cheliped, bulging. view. the. of. male,. portion. Chelipeds. of. a. was. triangular. 1)･ This. glVen process. characteristic. by. the on. process. the. orlginal carpus seems. on. authors, of to. the. first. be unstable;.
(12) 12. 10 specimens. single. process be. view. the. carpus. in any. seen. Tbis. species. brancbiae･ the. constant,. A･. polntS,. both. nO. COnStanCy. the. number as. acanthocarpus. A.. of. in. and. a. of the. presence. such. no. epipodites. and. specimens. of. djiboutensis. regarded. in the. said. moreover,. as. branchiae &. the. process. can. Of. seto-. MIYAKE. collection, be rather. to. seems. BANNER. be. to. palrS. present. by. cited. seems. MIYA. fourth. branchiae. o･f the. by. pereiopods,. Athanas.. of. the. of. be. Can. number. in. as. in other. process,. such. pereiopods.. all the. the. no. two. the. of. pereiopod;. causiously that. have. with. either. on. congener other has three pairs. Variable. Thus. here. on. of the丘rst. belives not. (1960)･. seen. Examing. author. in. it was. these on. dealt. is seen. process. specimen,. From. not. the. SuzuKI. t･be author. which. ll specimens,. B.. a. &. speci丘c. BANNER character. in their. described. original. descrlption.. Athanas Arete. dorsalis. STIMPSON,. Arete. dorsalis. var･. Arete. Arete. long. second. of. the. of dorsal. in. triangular as. broad･. antennular same. 1861). this. &. 136,. MAN,. tlp. 1910b,. or. The. to. rostrum. the. 313;. p.. D･M.,. is rather. Of the. 137.. 116.. 1911,. 1_960, p.. broad. (Text一点g.12; 1). peduncle. appendage･. 1-6.. 25, figs.. BANNER,. species. view. The. p.. 31-34.. 87,figs.. p.. 19,丘gs.. 866,丘gs.. p.. DE. salibabuensis BANNER, A･H･. rostrum. p.. 1905b, 1910a,. var.. dorsalis. Tbe. H･, MAN,. DF･. 1903,. H.,. Ⅲリ1905a,. CouTIBRE,. martensis. Athanas. as. pac7Pcus. amboinensis. Arete. p. 22. CouTI丘RE,. (STIMPSON,. 1861,. CouTI丘RE,. martensis dorsalis. Arete. dorsalis. at. the. pl.. 5,. is 1.4. reachesnearone-third. proximal. pterygostomian. portion margln. third. is. angular. Rl-1,. 5.65mm. ,/. Text一点g･. Athanas. ll. in. carapace. dorsalis length,. (STIMPSON), functional. No. female.. and portion to 1.6 times. point. of the. 13,. 4,触.. 6.. proximal. its length. and. 169,. p.. 151,丘gs.. of the. segment as. in. A..
(13) Four. Shrimps. AIpheid. belonging. to. Genus. the. i.3. Athanas. /. /. 甑]. }{. #. C,I3 1. ＼ 5. %. ー-----▲-･--∼ /. ＼､こゝ. 鮎. /7. /. 8. 6レ/ 4. 9 メ:2プ. 10. LiLiiiii /. くも. 句ヽ. 鼓鞄･--ii∼-ー. ￣うも ＼. ll. Text･fig. 1･クanterior. part. 2nd. 1st. carPus. ;. rounded (Text-丘g｡ 12;. outer. hargin.. distal and丘fth. as. other. 2)･ The. margin. pereiopod,. aild. 2nd. 5,. Brst. its`tip. the. 9, 3rd. pereiopod. two. spines. No. the. perelOpOd,. is spinous growing. lateral. same,. pereiopod. (×10);. species, is 4･5 to. RIJ... (×8);. antenna. (×8) ;. telson. In the. 2,. (×10);. view. (×8);. in. dorsalすs,. Athanas. 8, 3rd maxilliped ofへchela of lst. not. the√ pdst'erior. dorsal. antenna. ll, outer′view. indicus,. fourth. carapace,. 4,. (×8). maxilliped. (×1･0);. the. of. (×8);. mandible. 12.. 6,. 2nd. (×22) ;. 12, telson. and. A. komin,atoensis 6･4. times. as. (×10);′3,. view. (×22)三7,. maxilla 10,. 1st. pereiopod. (×10).. uropod. A. acanthoI. and long.. as. broad. at. is shar-i)ly angled at (Text-fig. 12; ll). In the third, the. palm. along. the. inferior血argin. of.
(14) 14. H.. the. in. stant is,the. in number, found in and. appearance. same. that. as. below. shown. 17-21. are. pTOPOdus. the. of. SuzuKl. three. of which the distal. Ⅱ. ユ,. Mastigobranchia. Exopodite. 1. i.. 2. 1.. 1,*. 1.*. 1. 1. 1**. 1**. Habitat: of. the. indicus. as. MAN's. BANNER. & as. margln. 1. -. 1. -. the. (1960, In. strongly. the. found. zone,. between. (LAMARCK).. variolaris. BANNER. in colour.. its host. alike. intertidal. rounded.. is so. ⅤⅠ. quite. and. StomoPneustes. illustrated. this. black from. urchin, to. 152,fig.. p.. 5, b), the. present. specimens,. inward. that. curved. it i岳. the. angle. overlooked. specimens. is rather. which. female. ovigerous slender,. form. This. paper.. orlglnal. one. examined,. (Text-fig.13). chela. DE. of. but. sometimes,. Among. nrst. sea. margln. angled,. may. species. is obtained. According. pterygostomian. be,. is uniformly. the､black. Remarks:. rather. A.. formula. Rudimental. **. body. The This. 1. Epipodiじe,. *. Coloration:. 1. Ⅴ. ⅠⅤ. Setobranchia. spines. brancbial. con-. :. 〕工. the. are. ones. kominatoensLS,. A.. Pleurobranchia. ･. The. portion.. species,. preceding. long. rather. and. is closely. (No. Rl-2) to. agrees. well. the. the丘gure. A. amboinensis. to. resembles. has. ｢＼ L_ーノ. でext･丘g.. Above,. inner similar. very. 13.. On. species. as. the. the species. is. host. of were. to. the. basis of. theむst this. of. A.. of. outer A･.. form. be. to. Athanas. of. length,. Below,. that. 2). The. seems. synonym. This. carapace. shape. (DE MAFJ', 1910,fig. (ibidリ丘g. 1). pereiopod. in. (×12)･. view in. 1st. of. involved this. view. also point,. the. of. chela. MAPq. DE. (×12)I (DE MAN,. illustrated. telson within the. 5.86mm. female･. ovigerQuS view. amboinens7:s. the. Rl-2,. dorsalisフNo.. the. author. by. The. chela. is. 1910,. Fig･. 2)･. the. author. same. variation. of. the. considers. A･. amboinensis. in. Japan.. Formerly,. present. dorsalis.. record shrimp. all associated. of was. with. occurrence. contributed. of this species Heterocentrotus,. StomoPneustes.. but. the. Japanese.
(15) Four. Four. Shrimps. described. above. species. AIpheid. Key. to Two. a･. four. the. pairs. b.. species. is. palm. of. the. bb.. Athanas. Genus. three. and. pairs. broad,. first. is. following. Outer. margin. Outer. of. setobrancllia.. triangular is. pereiopod. in. distally. shape. angular. and. margin. of palm the. at. the. of tip.. first. is distally. pereiopod. Pterygostomian. Pterygostomian. g山ar･. pairs. is. margin. four. and. epipodite. pairs. Of. ユ-. is. Body. rounded. line.. Body. Brst. the. of. --･---.･･---.I. kommatoens?rs. setobranchia‥‥‥‥‥‥‥.‥‥.. is. light. with. a. distinguished or. band. white. is purplish. brown. in. dorsal. the丘rst. of. coloured. the. tip. perelOpOd. are. light. uniformly. line･. Chera,. carpus. merus. and. the丘rst. of. is. Body. II.. phenomenon. indicus inthe. dorsal. lsopods. by. several. tional. 1966). been. CARLISLE,. as. not. testis. of the. 1891;. OKA,. reported. adult Tohru. as. the. dorsalis. kominatoeliSis known. well. as. but. male,. B., 1941).. protandrous. this In. Calocaris. species. A.,. 1909. (Thalassnidae, part. is the. not. in. the. (RuNSTROM,. as shown YALDWYN, ;. func-. a. J. C.,. half. posterior. listed. shri血ps. BELL. has. Callianassidae). hermaphrodite. hermaphrodite. Flabel-. hermaphrodite. macandreae. been. since. of. parasitic. suborder as. reported. (WoLLEBACK,. ovarian. the. and in. species. all. hermaphrodite. has. species. Macrura,. consecutive. are. species,. (DE HAAN). having. species. almost. Cymothoidae. protandrous. protandrous. major. in. Ku丑O. Acrotboracea. suborder. single. 1959); this. Gebia､(-UPogebia) known. a. is known. D.B.,. hermaphrodite,. brown. acanlhocarpus. Epicaridea and suborder ho∇ever, a few species. (Thalassnidae, Axiidae) S., 1925;. to. In Anomura,. authors.. is. belonging. ones. to referred In Decapoda,. 1ifera.. median. dottedwith. are. pereiopod. Athana8. of. Crustacea. of. except. ‥‥‥‥‥. ......”.......”....”...........Athanas. Hermaphroditism Cirripedia. line.. median. black. uniformly. Sexual. kominatoensis. orange. spots-･･-･-----･･.----･-･･--∫-.t････Athanas 4･. dorsal. movable丘nger. .............Athanas in the dorsal No stripe. vleW.. in. stripe the. of. ..............,....,..........................,...........Athanas is pale browhwith yellowish abroad white stripe. Body. follows:. as. white. near. pereiopod-----:-･･･. Both丘ngers 3･. violet. There. and. obtusely. acanthocarPus be. can. species. dark. uniformly. median. 2.. four. sharply. indicus distally. Athanas. Of. these. coloration,. at. angular........”. ･-----･-･---･･･.‥.‥‥‥‥‥‥‥‥‥‥‥.Athanas. ln. pointed. angular,. is. margin. ･---I--------･-.I-･.･･･--･･-. Three. sharply. the. of. dorsalis. .....................”,..........................Athanas Outer is margin of palm of the first perelOPOd. CC.. key:. lanceolate.. pointed. aa.. the. by. distinguished. 15. tip..................,.........................,.Athanas. Rostrum c･. the. Athanas. proximally the. to. be. may. of. o-F eplpOdiヒe. Rostrum. belonging. of. C.,. (IsHIKAWA, below. have. the. been. :. Pandalidae pandalopsis P･. disbar. P.. mitsukuri. coccinata RATliBUN RATLIBUN-P･. URITA. l･ (1956). ---.---･･_-･･--･･･--････KuBO,. ALFREDA. -----･‥‥‥..‥‥‥‥.BERKLEY',. pacljicus (DoFLEIN). --…. -.-. ･･.KuBO,. A. I･. (1930) (1965).
(16) H.. 16. SuzuKI. KROEYER... (1･934) (1929) (1952). Pandalus. borealis. P.. danae. STIMPSON. P.. T. (1951) ; AoTO, ; JAGERSTEN, A･A/(1･930) (CzERNIAUSKI).....1･,･･････. ･BERKLIW, B･ T･ G. (1936); KuBO, I･ (1951); AoTO, (1952); RASMUSSEN, (1953) E･ LEACrI (1936) montagui ..‥..‥…‥---･･-･･-I-･.∴-･--LELOUP, T. YoKOYA (1950) niPPonensis ......................TAMURA, A.A. BRAND′r (1930) platyceros ..._......”......BERKLEY,. p.. p. P. P.. ””.LEOPOIJDSFJDER,'F･. A.A. ..............”.BERKI,EY,. BRANDT. hyPsinotus. ......... ......_.. T.. -････. ..IGARASllI,. kessleri. .･-----･. ･･.･･････-･･. Hippolytidae Chrismus. (PFEFFER). antarcticus DoIIRN. Lysmata. &. nilita. -.. ▲ ●. ■. ●. ■. ●. ■. ■. ●. ●. ●. DoliRN,. L. (RISSO). seticaudata. In. to. addition. as cognized Hermaphroditism. that. the. of. these. -. I. and. be. length. maximum. The. sispina (A. AGASSIZ), the. Manazuru Both. the. living. living. appendages㌧. formalin. be. anatomical. in served histologlCal. formalin. the study. of. (1),. Squash. method:. used. for. staining.. were. was. cimen from. the. carmine. taken minutes.. stained. two. with. rinsing. it in. the. living. After. that,. the. L. ●. ■. ●. ●. ●. 1. .. ＋. L. 4. 4. ▲. ●. ●. LIB･. &口oLTHUIS,. J. I. I. I. *. ＋. ＋. ＋. ＋. 1. .. 0. 4. ＋. 4. A. J. t. 4. t. ●. ●. ●. ●. ●. I. (1950) 4. 4. t. P･F･R. ; DoRRN,. (1917). t. 4. t. I. I. (1950). ∫.C･ (1･966) J･C. (1966). alpheid. the in. in the. re-. were. shrimps. by. present. this. next. the. collected. kind. study･. section,. and. (p･31)･. section. investlgation. 1.57. are. rostrum. during. monthly as. shrimp,. of. the in. noted. Ahthocidaris with inhabiting the shore. urchin. the. crasnear. 30 minutes. the. The. the. sexual. 3. water was. was. into. neutral. preserved. pre-. available.. For. applied.. tissue,. taken. was. which was. were. solution for about. kept. water. autotomy_of. put. specimen. following. the. from. out. acetocarmine,. specimen sample. the. organ. formalin. process,. days. below. squa?hipg. iron. this. the. sol-ution. the. pr.more. noted. sexual. keepin.i. specimens′were. organ,. for. fresh. By. ForfiⅩation,. study.. gradually,. into. Bouin's. or. the. for.this. water. Then. Belling's. specimen丘Ⅹed. after from out. ●. for the present. used. sea. methods. by. 1. excluding. sea. the for. Before a.. ＋. associating. were. solution. it,. ●. ■. Laboratory.. in. of. q. used. common. cent. ･study. ●. ■. Methods. f6und. avoi､ded.. 5 per. solutiてOn Of. For. ▼. discussed. are. 7oC-10oC. can. t. with. were. specimens. cooled. between. temperature the. was. shrimp. is. and. isチalways. and:丘Ⅹed. t. E.. of carapace,. is a Which Biological. Marine. I. specimens 1. Table This. in. (p, 3),. section. ■. P.F.R. t. dealt. kominatoensis. respectively. mm-6.29mm 1967-1968 as years shown. preceding. f. four above, hermaphrodite. listed. specieswill. of A.. l. ........,.”.......YALDWYN,. species. three. specimens. Minimum. ＋. protandrous consecutivp kominatoensis of Athanas other. ●. ‥‥‥‥.‥….‥‥YALDWYN,. .....,...... 班aterial 513. 4. CAROI,I,. (1912) ;. BATE. sem?:striatus ScHMITT. rathubunae. ■. 1. T･. CamPylonoius. ●. g A ･･････.I.････. ..‥.‥SpITSCIIAKOFF, Campylonotidae. C.. J.C. (1966). ”............./..YALDWYN,. HoLTHUIS.. and. the. the. living. one. taken. was. stained. with. tw?. hours･. b.. in fresh. vater. in acetic･JaCid. manners. the. speout aceto-. Th占gonad. solution1. for. 15-20. 0f. 3 per.
(17) Four. AIpheid. Shrimps. belonging. to. GenusAthanas. the. (. 寸 ▼一 ). N. く.C). A. N N. -. 己 q). Ln. の. ). qJ Ch A). }. N. i.,I. ▼■■■■■1. 己 U q). †てコ 4). ⊂〕. J･J. Fm. m. r+. U q). (Yつ. 飼. の a) 【コ O. (. ▼■■■■q -. ▼■■1. ∽. O U. ). 'て⊃ a) ,上d ト1 cd. ∈. ”. >. (＼. ′. (⊃. の. cd. ド. ヨ. tD. 港. a. ぐr). l†づ. L∫一. y<. ▼￣￣l I･････J. =. 也 (. O?. ;>. i. の h. CY?. 〔だ). ). q). >. ▼づ の. ･◆_J. 己. (. O. 寸. CY?. 仁一 N. 寸. (′つ. の. (⊃. C). てポ. ,.⊂〉 く匂. J. ∽. 日 宇三 日 ■S= 十ヽゝ. q) の. cd. ed コ 也) ”). ○ ＋J. M. :N. N. l仁一. の. N. 亡 く.D N. ○ 一-. Pコ. N. ). 寸 ). l. 寸. N. C). ). Fl. !} Q) J⊃. CY? N. 己 コ 白. ). d. Q). (. m. N. N. FD. ). ゴ. .q ＋+. くエ) N. ー. 己. 4). (. の. LD. トー. ). C). yll. N (日. h. 寸. ロ コ. 日 cd. q). ぐヾ N. N. 一寸. ). α). ,エ] JJ. CL q) (. (. N. ト｢. 冒. Im. の. CI. T+. ･■-. C: q). (. ⊂′). 廿 ▼づ. ＼ J. (弓. の. ゝ.1. d U qJ. O. I･･+. N. ”. N. ). (. (.D. co ). ▼･･+. (. (.D I-･1. C〉. A. (. 言. く.C). ) くD. LD. h. CX). I-+. ∽. ㌫. 一 a. h. i. I-. ” O く勺 Ol (弓. .坐 U. N. I-i. l寸 l▼･･･+. く⊂〉. ▼{. l. 寸 ). ley?. 1). ゴ b8 唱 ▼d q) U ed ll+. -てヨ V く⊃. <. ,.⊂! tLー+. O ∼+. (. く.C). a). の l{. -. ぐヾ. CY?. ーて5 q) 亡 I. d }. ⊂⊃ 与q. ∈. ∫) C〉. (日. 昌. ○ h. CY). LL). 一+. U ト q). ▼+. t＋イ. a. 0 の. 'L. 己. ヨ. a). a I+. ≡. の. ■-■. U Q) Ch. -IJ. ∽. 芯 A U. G. Ln. 0). ▼･･･+. 4). ,< ). ∈コ d. qJ. ヨ. 盲…盲 聖芸a Q) ト. 叫+. ト q). O. 己. .喜葛篭 q). q) iィ eQ. .エコ ー. q)･. &. ∽盲}. -s冨盲 '■ロ ･∼. >. 岩. l{. の-. CL qJ. a)･. h. SIJ. 芯 の .≡ N q) J=. h. h. の h. Q). ぎ盲宅 T5各署. 書害者 Ie^畳so ,c)旨. _A). 岩o:･誓. 言重宝 芸書空 電毒畳 S-<. q). 蓋Bo妄 ･ヨ-i岩. 音≡邑 uQ). ”. J=JJ. 倉宏'E. ト･｢. (プ くじ. ∽. J=V.≡ (p. .ij. I+. h. TC>芸s. A. ゴ bD. (. T-ll. ∈ 己. Q) -. -【⊃ d. 害毒雪. I■■■■■. ). ▼･･･+. ,エ】 〟. 亡. 壬+. QI. h. ). /'一￣￣￣￣＼. ▼=■1. a) l{. t＋イ. (. …. 寸. 冒. (じ. b8. ∈. くこ). Ll. I･････-1. ). CO. U a) CL の. ･*. Jj. A). (. ▼■+. ●て〕 h A) cd } d) (弓 亡 l{. ( ). m. (. C1 ). ∼+. 肖. ぐYつ. (. m. -. ,エ】 a 5 -. I+. M. '& ○. A). O. ( m ). ). (弓 U. t可 G 亡＋+. †￣1 ). CT). -. ■. 4-. (. 一て-ユ. Q. 己. く.D. ). L【⊃. ∼+. く泣. ･屯. -. Q). ･汁. (弓. e. (:刀. ). ･*. ). く′つ. N. ′′■'■■＼. ふ… F :]…-” ∽☆≡L-吉 三卜 :1各 J…L-:]｡ ≡J廿 Nニ…L品… …斗…. h (〇. ■pJ. (. (. h. ). S. a. J⊃. の. l_rつ. Q e. gvぢ. I+. 舛. ). ▼■■1. 十_i. -dQ'呂. ” l{. U. f-. ＋J. 式J弐賀… lヽ. A ⊂コ ⊂). へ. J.J. 0 (. q) ) U 也 A Ql JJ eの (匂 ∼+ 己 (元 - 4). U. く⊃ LL?. く=) LD. (≡) く⊃. く.C) ∼ ⊂⊃ ⊂⊃. ぐ/つ. N. 占 (=). ∫ ⊂> LZ). q⊃. ”. ▼+. g七∽. tJj め. 宮昔ぷ ヨ. -. cd. 一. ○. ト. aヨぢ. (⊃ lC). 選言.暫 ;i ().
(18) 18. H.. for. cent. This. 3-5. was. fat. minutes,. were. stained. into. and. transition. the. of. and. 1･. forms. in. The丘rst both. the. pereiopods On. there. is. rather. large. a. the. cutting. not. teeth. with sexual fig.14.. that. same. be. can. of. モ2. 4. 14.. 1, type-､･1, female. or. form,. there male. (×14) (×12) ; 3, type-3, the丘Ⅹed丘nger (×9) ;. edge of. prominent. teeth. on. the. in. found. ; 2, type-2,. Juvenile. minnte畠errations cutting. forms. Various. cutting. the are. form,. lst not. of. chela any. there. the. edge. of. there. of teeth is. the. are. on. (×9)･. areト3 are. there. are. in shape. variable. in. shown. Athanas. prominent. chela,. pereiopods. as. is. two. large. both丘ngers,. two form, prominent there are male 4, typeA, the most masculinized. the占Ⅹed丘nger. of. the丘Ⅹed丘nger, both. Juvenile, the. the. of. characters into four types. 3. the. either. Such. devided. 1. Text･fig.. and. phase,. portion. serrations.. and. observe. fotlrLd. except. movable且nger. of female. the. phase,. male. the. of on. shrimp on. of. asymmetrical. and. excep亡minute condition. shrimp. edge. tooth. and. to. food.. as. generally. In the. teeth.. symmetrical. any. In the. prominent. usually. weregiven. are. made. common. haematoxylin. laboratory. the. of the secondary sextlal character thorac､ic and abdominal appendages. perelOPOd:. beavyinsize.. edge. the. was. the. Ehrlich's. with. in. alive. by. The. c.. solution. thickness. stained. kept. Bouin's. ln. fuchsin.. division.. maturation. with. basic. cent. in kept were characters; sexual shrimps individually 200cc keeping of sea water, with Undaria in pinnatijida, a common edible seaweed. tray. nauplii. VariollS. was. per. the. 23oC-25oC. Artemia. of. Bxed. tissue. were. secondary. glass. temperature. Japan,. and. the. of 5FL-loll. sections. the. 0.5. with. specimen. Specimens. compartmented. the. The. method. eosin. Four ovlgerOuS. the a. the. stained. observation Sudan III.. with. transverse. of this. manner. the. method:. -(2)'para包n totally. for. effective. cells. it was. then. SuzuKI. Text-. kominaioensis.. the. cutting tooth teeth. form,. on on. there. but edges, the each the are. cutting three.
(19) Four. Tbe. second. developed. One. Alpheid. these. of. tip. loⅠ1g Setae.. has. the. the. functional. form. its. at. be devided. can. the. the. into丘ve. phase,. endopodite. types. but. pl､eopod,. be found. can. in Text-fig.. illustrated. as. short. curved. provided masculina one most femillized. second. frequently. masctllina. well. the endopodite･. with. the. the. of. two. are. of. apppendix. of female. appendix. edge. furnislling. is.an. other. the. on. iriner. of the. 19:. there. phase,. interna. th､e. Athanas. Genus. the. male. ′middle. shrimps. only. female,. of. appendix and. In. interna. appelldix. an. to. shrimp the. at･. is. processes. some. with. the. processes. (retinacula). setae. In. pleopod:. bar-like. belonging. Shrimps. in its. and. 15 schematically.. 4 Text･fjg. one. i,. typeJ･,. interna. the only;. be. 3,. seen; interna;. 5,. developed. In no. as. under. and. the. as. be the. females. ones. second. the. male. the. of. distinguish female The length. the shrimp, externally (Texト丘gs. 16, 17 and 18).. shrimpsbThich are. all functional. is. still female shape developed as type-4 be･1ongs 1inized carapace. to as. type-3-or type-5. len'gth. or. than. male･. In. (typell). in. of the. and. Thus,. former. the. spite the. the. young. between. functiorial. male. female lerlgth. carapace is. or. difBcult. in. 6.00mm tbe丘rst. in carapace perelOpOd. the呼pehdix甲uSCulin* old. these is show`n. grQup,. masculina sexual hLI. the丘rst is also characters. Tbxt-触.. 16.. to. functional-. is. of latter. appendix. relation. group,. carring 164 other. typical. it. male. than. more. and. in. 4.OOmm. well. masculina.. and This. extent.. than. 3.00mm. In. type-5.. type--4, The. less. is. typlCal壬emale. 紬type-1. some. appendix. shrimps carring 5･00mm-6･00mm. are. are. appendix. as. appendix. the. Period. off-breedingl in functiopal is which. less. are. in. specimens, the. length. belonging. pleopod. am,. which. specimens. as. masculina. involved. carapace. characters. in. collected. interna;. can. setae. with long. as. appendix. appendix. long. as. one･third. the. appendix. 24. only. size. and. in. al,. covered. two･thirds. (188 individuals. abdomen),. observed. about. about. but. masculina,. masculina. form,. masculinized. maximum. carring. is. interna.. appendix. is. masculina. most. no. kominatoensis.. appendix. masculina. appendix. appendix. the. the. of. masculina,. Athanas. is. there. part. appendix. of of. characters form,. appendix. the. pereiopod. individuals. in. the. and. first. not. type-3,. long. male. apical. functional. the. eggs. can. 2, type--2,. type-5-,. in minimum the. of. forms. Various. feminized. most. 4, type-4,. interna;. 15. the. well. pereiopod we11･tmascu1 and. the.
(20) 20. H.. SuzuKI. TC. 勺__勺 ト･+ト･･+. ノTC.. 竣CL硬. 4321. 12345. トIl.. l. Jll. =:(:■. ;.'･;. 6.0016.50 7. (6■). L＋＋＋＋1. 3.00-3.50 (34). 琴墨-f. 2.50-3.00 (26). 童確定-r -m. 2.00-2.50 (24). 1.50-2.00 (22). Text一触.. -. kominatoensis, asymmetrical. CL･. the. number but not. scale. 14) ;. 19, and. to. found. listed maximum. the and on. external. sexual. sexual p･ 23 ･size. phase･. characters 12. specimens. of. Athanas' carried･J.. The specimens, exc･1uded･ length of･ carapace are shown are. in.. 20. 6gure in p早renthesis.represents the and each length ; i, functional female, grade of carapace PI, percentage in number, male; of individuals each. r, TC, type lst chela sex-reversal; of the (see Text一石g.. masculina (see Text一石g. 15).. length of carapa･Se in specimens.examined m, functional ovigerous; range. 10 of. in. length. carapace. of. represents type. TP,. forms. Various related. appendix masculiha, in minimum and. 3･50mm-6･00mm Text-丘g!.. 16.. the. per. cent;. appendix. in. each. Elm.
(21) Four. Shrimps. AIpheid. belonging. to. the. Genus. Aihanas. 勺トづ. TC. TP. =ト･･+. 4321. 21. 故CL故. 123.45. fll. ll[l[. 5.50-6.00 (14). ･5,00-5.50 (45). 4.50-5.00 (37). 4.00-4.50 (19･.). 二･3.50-4,00 (12). Text一色g･. 1･7･ to. CL･. the. Tlumber scale of. the. range of. Various. of. carapace. specimens. forms. length. carapace. follnd of. lehgth. represents. 10 per. appendix. masculina. cent;. in. mm. Pl,. examined;. TC,. in. Athanas. the. external. type. of. the. 15).. of. OVigefOuS. cllaraCterS female二. in･parenthesis. each丘gure. and percentage. (see Text,-軸.. sexual. kominatoensl:s,. individuals. lst/chela. (see. in Text-fig.. related. represents number. 14);. the. and. each. TP,. type.
(22) 22. H.. Text･f]g.. kominatoensis, asymmetrical on p. 23. are. 18.. forms. Various. related. appendix excluded.. f,∫ functional. female,. abbreviations. are. the. to. found. carapace. but same. not. in. length listed. masculina,. ovigerous; in. shown. SuzuKI. the and. external sexual. p･ 23. on. m,. Text-軸s.. a. and. functional. 16. sexual phase.. and. sin昌1e. male; 17.. characters 10. specimen,. r,. Athana5. of. specimens. which. No.. sex-reversal.. 224. have noted. Other.
(23) Four. It masculina. two. found. a. pair. of. developed A. large. a. in. in. to. was. type-4,. both. in form ; Among symmetrical shrimps (4 functional male and. provided. the. with. 3. 2′. 210. Au雷.i.5. 5. 6ユ.. 2. 3. 228. Åug.. 1.72. 2. 3. 6. 229. Åug.ユ.5. 1.77. 3. 4. 235. Au雷.. 1.5. 5. 04. 2. 1. 238. Jul,. 17. 4. 40. 1. 3. 5.i.0. 1.. 2. 15. 5.45. 1. 2. 324. Jul. Jul. Jut.. 15. 15. 5. 46. 1. 2. 327. Åug.. 1.5. 5.18. 2. 3. 330. Åug.. 1.5. 5. 69. 4. 3. 6 ? ? 早 早 早 早 6. 1.5. 1.5. the. which. NO,. same. specimen. has the. in. of. so. middle in in. yellow length. nu皿ber;. length. carapace. (皿m). appendix. breeding. March. shape,. the. of. collected sexual. 早 早 8. ;. CL,. carapace. TAL,. phase;. masculina. to. the. type. of. left. it. continues. range. ovlgerOuS number. 1n. of. female. of. counted. in. November. The. eggs. early. (Table. 400 /∫-600 〟 The. that. period. andAugust. colour･ of. Were. SP,. SP. pleopod;. pleopod.. long of. June, July. ovoidal. are. right. TAR. specimens. (see Text一色g･ユ･5) the. from be. on. mm;. shrimps eggs. 1).. minimum number is. as. and of. follows. and carried. maximum the. eggs. :. range. of of. number eggs. 00. 14. 71_182. 5. 00-5. 50. 45. 76-178. 4. 50_5. 00. 37. 4ユ._175. 4. 00-4. 50. 19. 1.0_52. 3. 5(ト4. 00. 1.2. 2…10. 5. 5016.. 8+. appen-. asymmetrical. 4.91. date,. weu. chelae･. Åug.i.5. 200. in. provided. earring. 1. species. carapace. in. 2. TAR,. the. 5.01mm. でAL. number. orange. is. (No. 224, 23, 1968). in ap-. pereiopbd. CL. CD,. and. Brst. 5.55. Åug.. length. abdomen. 12. were. of. pereiopod.. other. always. study,. CD. ユ.92. 322. to. the. edges. not. appendix. first. below:. shown. 321. seems. cutting. is. rtot ovigerous). NO. months;. belonged. masculina. examined. as. pereiopods. the. ■eacb. specimen. in August. the. to. in the. obtained. first on. one. in. the. of. parallel. is appeared. 23. Athanas. prevalent. more. edges. while. phase,. teeth. female,. This. always. pereiopod,. male. appendix. masculina. not. which. symmetrical. specimens. cutting. are. character. prominent. paired. functional. dix. in. length,. carapace. the. Genus. the. is. on. teeth. male. to. character. characters. The. usually. male. the. male. pearance.. 513. in. than. belonging. Shrimps. the. that. appears. These. with. AIpheid. for. nine. its. peak. under. the･. diameter related. to.
(24) H.. 24. 2.. Tbe. sexual. organ. between. occupying. other. two. about. developing. Junction. and. middle. from. near. portion the. gO. of. are. gonad. is. pair. posterior side. opens. vd. 〔. only. in the. S｢. that. the. CO. P5. ag,. androgenic. co,. coxopodite;. gm,. genital pJ,. poviduct;. ･opod vd,. Schematic. gf, pore. ln and. 1Slender The. aj, male;. go,. junction;. parts. in. other. is. sr,. structure. ovarian. dite. re.. exter-. this point,. besides. Each. moreover,. female;. gonad;. In. the. 3rd. p3,. sperm-reservoir;. that can. shrimp,. of be. the. In the. feminized. devided one. dorsal. of view. 負rst. segment. with. orange. the. contrary,. the. one. and. rather into. is testicular. which. of. the. the. gonad,. that. visible. feminized. most. tip√ of. part. longitudinally. pereiopod,. is scarcely. ,reaches its posterior and. on. cox￠po-. and. behind. into. Of. articulation. Just. to. perei･. the. poI･e. 丘fth. the. shri血p,. distal. the. genital. the it. od,. morphologlCally, part･. gonadis,. on. on. although. )tlnCtion; of. masculinized than. female. recognized. sternum of. fully. the.most shorter. anterior pore. posterior. gonad,. of the kominatoensis.. genital. ; p5, 5ヒh pereiopod; vas deferens.. colour.. figure. Athanas. of. female,∫ in. in. わpens. between. p3. ,gland;. seen. the with afforeded deferens in addition to the. male. of. be. can. shrimp. sperm-reservoir The portion.. 19.. of the. Z:si.duscitip:eh;n vsa:apdee,fefr.e,. gf. systlem. female. of. be. can. vas. productive. is simple.. moreover,. gm. Text･占g.. dorsal. and. also is ーit ovigerous.. l､こ. in. functional. nally. Pj. outer. coxopodite. pereiopod. phase. 態 良. the. the. of the. pore. third. so. ∂g. one-third. on. A. from. grows. genital. espe-. phase.. gonad each its structure and. The. the. developed,. of. view. od. These. when. female. of oviducts. the. and. of it.. obscure well. is. which. gonad. end. cia･11y it is in. aJ. of. each. posterior. ducts. one. are. gonads. right. (Text一員g. 19),. the. in shape,. symmetrical. left. Both. ducts. slender. from. organ. almost. and. heart.. and. sexual. of. is paired. gland. with. growing. Junction is posterior. other. observation. of･this species mid-gut. each. conjugated anterior. Anatomical. SuzuKI. tlle. gonad. the. eye. elongates abdominal yellow gonad. is. transparent. two. different and. the. is occupied. in. part.
(25) Four. AIpheid. belonging. Shrimps. to. Athanas. Genus. the. 25. 3. od. vd. -tp. 和一op od vd Text-丘g.. 20.. ovarian. parts. anterior. and. testicular. 2･00mm. ;. in. found. 3, the. functional. in. minimum. gonadal. gonad mm. in. the. the. inner. in. gonad. left. oviduct;. opク. testicular gonad. and both. and. OVarian. tp,. part;. this. oogenesis. is. male,. ova,. not. wbicb. and. wbicb. maximum. and. specimens. be. can. in. seen. be of. than are. part. spermatogenesis _and. the. specimens. length;. (from. reversal. can. ovarian. tissue. of carapace. sex. size. the. and. found.. still. less. measured. part. connective. size. primary. the. testicular. with. maximum. condition. ftlnCtional female, minimum. the. stage, other. in. seen. in. seen. the. ovarian. specimens ; the. part. female). to. male. length. carapace. measured. the. is. measured. testicular. part. partly. in. sex. secondary. measured functional. in. 4･50mm. in. side where. outer side In th岳small. be. each. more. specimens. than. in. 0d,. both. of The. kominatoensis.. omitted1. can. and. growing. stilトremained 4, the gonad the. but. in. this. are. which in. from. gona】d. is. mo're. gonad, length;. place,. by. Athanas. of. transition. deferens.. taken. 3.00 mm-5.00. 5,. gonad. separated. enlarged. the. schematically. junctions vas. vd,. ill Carapace. 3.00mm-5･00mm is. right. rudimental. already 2, the. represent. posterior. longitudinally is. the. of. part. 1, the. Figures. wher与the shrimps,. carapace. there. reversal than. male, length;. is the. (from. 4.50mm which the. anterior. in can. ovarian. to. in. seen. part. be. can. male),wbicb. seen. length.. carapace be. Junction deferens. an′d vas oviduct 2･00mm in carapace. less. female. is. the also. and are. length,. specimens remained. this. is. produced. these. measured partly･. sitnated. in. the. (Text-fig. 21). two. parts. are.
(26) 26. H.. Suzu牢Ⅰ. distinguishable. scarcely. OC. 0. G2. ひ. tive. Q. a. 伝 G). aj. 0. OP. scf. _/. Q. J. 珍. 0. G). I 7′. o,d 〉/. tured,. while. od,. oviduct;. part. ; pJ,. figure. oog,. spermatocyte cyte;. of. is. part. the in. still. oc,. op, scf,. secondary. spermatogonium. tp,. on. less. sp,. spermatoI. part;. vas. vd,. though. easily. a. characters,. Width, the. in this. than. the. in. length,. is. 50 /=n. width in. thin. form. typlCal. 15,. male. length) the. well width. typical in. gonad. developed,. (Pl. is. 1;. 7). thicker. (Pl. 1;. width female. (No. length). carapace. the. the. and. in. in. is. sperm-reservoir. to丘nd. highly. August. on. deferens. the. 5.45mm. in. length,. is. oviduct. 322,. widened. 1.72mm. length. vas. the. in. August in. In. in. e.g.. the. 250〃. and. gonadal. in carapace. mm. 2.5mm. changes. to the. is. In. on. it is laborious is. oviduct. out. in. the. vas. and. width. deferens can. be. stage.. gland. which discovered. CARNIAUX-CoTTON. is. a. kind. primarily. of. endocrine in. (1954) is located. sperm-reservoir. and丘Ⅹed. form. to the. in relation. and. also. 0.5mm. oviduct. the. is 6.00mm. gonad. lOOF=n. A11drogenic. γβJ/αby. 15, the. July. than. anatomically,. sexual. the. 8, 9).. collected. observed. sperm-reservoir. measuring. deferens.. thin,. the. sperm-reservoir. ovarian prlmary. schematically.. is. gonad. is. 20. length) collected. the. ;. condition. (No. 228,. 15,. is. spermatoI ;. testicular. the. (Pl. 4). The. necessarily,. (No･ 202, 5･75. (oocyte). ovum. oogonium;. scs,. testト in. change. relation. exceedingly.. under. it. duct. shrimp. and. is map. part. )uncLLion;. ;. sg,. zoom;. with. carapace. being. Tesヒicular. posterior. the. the. sexual. genital. young. kominatoensis. junction;. and. gonadal. in Text-丘g.. collected. anterior. side. remained. of. the. condition. 1. developlng.. aj,. of to. its size. SP ㊤′. Schematic. ovarian. also. transition. The. V. male･. still. in. shrimp,. is. side. A. PJ. functional. (Pl. 3). the. shown. /d. Athanas. is. part. antero-inner. postero-outer. i. 貞). of. the. magnifi-. masculinized. ovarian. gonad. part. in. most. feminized. related. Y. e5 ○. gonad. the. ●. ㊤. 21.. the. in. ヽ. ㊨● ①. Text-丘g.. the. ナーー. <. tp. the. cular. 0. Q. shrimp,. most-. ▲. Q. Q. cation). remained. SCS. (15120. microscope. In. of. 管 ￠. In. shrimps than 3.00mm which in carapace length, these can parts be distinguished dissecthe under. 珍O E]. histologically. aremore. C2 Og. but. cally. anatomト. sexual. around. it. condition;. the on. organ. amphipod, the. proximal. (Text-fig･ 19). This in the. male. phase,. male controlling Orchestia gamma-. portion gland the. of. changes gland. can. the its be.
(27) Four. as. observed. it as. phase, in. (20. a. AIpheid. layer. a且at. ln. the. layer. simple 丘11ed. of. stitial. cells. testicular. part,. the. In. Width.. largest. the. as. that. it is difBcult. long. In. as. the. to. successive. testicular. The. it･. cells is. Thus,. part. spite. the. the. of. the. into. three. parts. Text-丘g.. (2). from Along. ondary deferens. maturation at. the. the. (1) Touching. interstitial. cells. posterior. in. visible. is. but. one,. slender. so. and. and in. even. is about. one-. primitive. be can. portion,. be. growing i;. is. the. spermatogenesis. to. the. ovarian. of. (3) In found. containing. the. contact. and. this. spermatids. 1n. nurse. with these. of the. ova. ovarian. its volume. sections. in. there. ; the. gonad,. be. is. (PIs.. seen a. mass. spermatogonia. peripheral are. the. of. distinguished can. wall,. there･. 5･6/∼. of. part. seen. 2).. of. zone,. be. about. histologlCally. seen. is lOOFL-. can. increases. serial. be. latter. headis. the. and. deferens. vas. surrourlded. ova. adhering. seen.. The. development. posterior. is. spermatogenesis. the. its. in the. (Pl.. size. spermatozoa. ova. The. can. maximum. spermatozoa and. part. them. and the. observed.. transverse. spermatogonial. division. more. oviduct. minimum. young. testicular. phases. can. the can. anterior. portion. many. phase. of. of. the. the. male. proliferation. division. maturation. and. than. study. various. 21):. and. developed. and. and. well. with. in. still. In. and. developed;. gradually.. part負11ed. condition,. spermatogonia. portion.. are. its. numberless. in shape. part. histological. matured. 3, 4 and. be. ovarian. upon. are. part,. develop. anterior. shrimps. Basing in. in the. visible. with. width. ovarian. also. inter-. and. conspicuous. period,. is still. is rivet-like. In the. 1).. Blled. shrimps. maximum. follicle cells. and. more. and. in. mm. breeding. the is. part. spermatozoon. (Pl. 2;. width. of. is. part. spermatids is. The. thin. a. anatomically.. 2.00 mm-3.00. these. not. proximal. of spermatogonia. proliferation. many. in. 15〃･. the. testicular by. diameter･. ln. which. is. about at. during. obtained. and sperm-reservoir 150FL ln minimum. is. it up are. and. than. oogenesis. in width. take. about. sperm-reservoir. part,. Both. diameter. of 6fl. size. transparent. each other Pl. 4). The each. range. part. maximum. rather. spe王･matOgゝOnia. of. in the. diameter. which. The. completed.. its. deferens. vas. shrimps length,. of carapace. found. is length.. already. visible. testicular. th占. ovarian. cell,. are. cytoplasma. proliferation. be. the. germ. 丘fth. in. microscope. from. the. ln. and. gonad. maximum. 12FA…15FL. is. of. not. spermatozoa.can ln. poor. portion. the. year,. separated (Text一色g. 21 and. Cells,. successive. posterior. 50FL. fema-le. the. or嘗an. minimum. already. spermatogenesis. The. found.. sexual in. and. tissue. have. which. the. minimum are. germ. numerotlS. with. in. however,. connective. of. 1.5mm-2.00mm through. collected. parts,. observation. are. 0.5ⅠⅥm-1.8mm. ovarian. be. of. wbicb. length,. small,. and. 27. Athanas. in (Plo 1; 7) and cells theglandular them (Pl. 1; 5, 6) under the dissective. Histo且ogical. shrimps. carapace. and. Genus. the. magni丘cation).. 3.. of. to. of. mass. so.lid. belonging. Shrimps. many. of. this. spermatocytes. with. this. part. opens and. wall. of may. zone,. to. spermatozoa.. the. sec-. the. vas. In.
(28) 28. H.. the. part. ovarian. to. the. of this. latter. the. seen;. are. male. df. wall. the. specimen･ developed. probably. peripheral. SuzuKI. the. ova. young. from. the. part,. where. ovarian. and. the. cells. anterior. be. can. oogenia. interstitial. adhering is. Junction. grOWn･ Among. 265. mum. size. them. are. part. of in. male. division. spermatids. sex. The are. which. 40p-50FL inner. 400 FL-600fL. ln. and. numerous. found･. The to. largest of. is. shrimps. In again spawning. 名nal. spawning,. the of. the. stage. of. sex. in 28. specimens,. length. (Table in. lOOFL. the. oogonia are. and. the male. Examing. January), testicular spermatozoa. In. vas. made. ovarian. part. testicular. part.. These is. in. the. deferens. pressed small it･. The. testicular is. also. minimum. carry. with. ova. the. antero-inner. oviduct. becomes. size. ova. also. part･､the spermatogenesis detTeloped･ Thus the. by. be. in. observed of carapace. 80p-. measuring. follicle cells. be. absorbed. of. the. (Pl･ 1; but. gonad, largest. the. rudimental,. becomes sexual. size to. was. and. male). in. measured40p-150FL. The After. in. seems. numberless. side. is負1led. period.. maximum. may. and. oogonia.. of. immediately. large. rather. width. part. breeding. to. and. vestigial. in. condition. female. and. sperm-reservoir. ovarian. growth. the. gonadal. (from. also. 5).. decrease. to. however,血ally to. 1 ;. can. some. that. the. in. times. intermingled. ova,. (Pl.. it. successive. This. in. than. spawning,. begin. secondary. less. be. can. degenerate. remaining 1, 3, (PIG. 4). The or. the. along. growth. is- much. and. measured. oogonia. gonad,. in. three. or. diameter,. vestigial. still remained. disappeared. land into. part. ovarian. loo″. by. 4.50 mm-6.00mm 1)I Some specimens largest. the. of. of. successive. ova. yolk. ova. gonad,. proliferation hand,. other. spermatozoa. two. reversal. part･. ovarian. The. the. side. a're. the. their. still remaine females, after. occurs. rf)robably. ･development. the. which. the. on. regenerate,. functional ova. with. part･. state. female. enlarged. orange. yellowish in the young the. in. all. with. of. in. transitional are. with. side. increases. part a. size,丘11ed. inner. the. spermatogonia,. specimens. found. urldergoing. and. also. in. is. ovarian. part,. spermatozoa. these. 120. of. in which. gonad,. vestigial. ovarian be. 71. testicular. regressive. to. maxi-. period,. of the. seems. diameter. In. postero-outer. these. vestigial. Other. ova,. testicular. spermatids. some. the. young. spermatogonia, of. female･. diameter･. wall. the. feature. Vitellogenesis. the. The. gonadal. largest. the. prepared･ the. found･. and. breeding. side. but. minimum. the. outer. is increased.fully. part. ln. decreased. to. male. ovarian. peripheral. Seen. be. from. is. spawning. This. the. visible, be. can. oval. growing. reversal,. phase.. is scarcely. to. the. have. specimens. in size. spermatozoa. and. with. 74. in. during. obtained. and. decre'asipig. maturation. Size. length･. phase. 3･00mm-5.00mm. are. which. carapace. respectively,. the. of. specimens. phase. in. 4).. some. diameter. but. it is not. active is. again. changed. phase. the. in the obtained (December! off-breeding period is in functional every as 1 specimen male in Table its show･n and is part In the sperm-reservolr, ′acti由in spermatogenesis･ many tan ､be observed･'while is the ovarian not developed part well. specimens.
(29) Four. and. packed. without. second. this. which. has. this. specimen,. and. The. :. rather. triangular, the. in. enlarged. rather. 2;. cytoplasmー(Pl. In the and. form-3. cells. three. these. In. cells.. of portion in female phase. ones. proximal. layer-like. appearance. large. containing state. the. cytoplasm. The. 1;. 6). the. is. in. found. the. sexual are. cells. the. is. gland.. androgenic. is in. numerous. contained the. are. as. kessleri, the. the. is. the. former in. in the. the. (AoTO, are. of. T.･. of. A.. peripheral. 1952)･. longitudinally. and. organ. of. General this. kominatoensis ovarian. in the. posterior. is located. male. and. maximum. a. red. in. morphologically in. its. yellowish. substance. in it (Pl. 2; latter. the. and. is. is. 2).. mostly. ConclusiorLS. species. hermaphrodite,. both. is located. part. part. sexual. protandrous gonad. situation. ovarian. is. the. known. of. female.. Diseussion Comparing. shrimp. consisted. there. vacuoles. remarkable. functional. the. of. gland,. in. 20Fl-90FL. cells.. in number.. conspicuous near. In. ones.. the. change,. measured. other. functional. the. in the. seen. is composed. gland. cell. and. former. and. of form-1. composed. minimum in shape, is circular stained well with two by Sudan III and di庁erent be observed colour cells can fat in one isfi1led condition; of which with cytoplasmic The. be. can. for血-2. some. sperm-reservoirs,. paired. cells (Pl･. female,. partly. of. is. gland. functional. form-2. cells, though. diameter.. (Pl. 2; 5). diameter. large. vacuoles. or. ovoidal. cytoplasm in. 10FL-12FL. ovoidal,. forms,. in diameter. is. nucleus. poor. rather. shown. in three. 7Fl-9FL. circular,. the. of. portion. discriminated. Form-2二the. androgenic. the. mostly,. fat. of. mass. the. male,. transitional. Between. 3).. moreover,. and. diameter),. antero-outer. the a. with. or. and. moreover,. 6).. form-2. is in. which. shape. functional. partly. or. diameter. is circular. nucleus. length,. pereiopod. respectively in the largest. residual. around. mass. (pl. 2;. rich cytopla占m 9p-llFL in large. in carapace Brst. absorbed.. attached a. be. to. diameter. and. in the. situated. seem. be. as. with. the. are constitute this gland which Form-1, is the nucleus mostly. cells. morphologically. Form-3,. formed. and. mm. 29. largest. the. ln. (135Fl-140p. and. ova. is. gland. sperm-reservoir above.. yolk. Athanas. 310, 4.87. type-5. and. ova. may血ally. androgenic. (No.. type-3. large. large. Genus. is provided. tO. orange. These. the. 60Fe1100p. specimen. single. rather. to. measured. 12), however,. with. part･. The. with. A. few. a. belonging. ova. belonglng. arefilled. the ovarian. Shrimps. young. pleopod. specinien. of. small. with. vite11ogenesis･ December on. obtained. the. AIpheid. of. in the part. In A･. central. (cortex. separated. parts. gonad. part of. the. (medula. gonad). however･ each. other. species and. two･species. seticaudata,. and. the. g?mad). around. such. of. thesne in. these. dorsal. paired view;. the. wbicb. Pandalus. In L.. T., 1922).. (SpoTSCIIAKOFF,. kominatoensis･ from. from. of the. portion it. two. seticaudata. is different. anterior. portion. Lysmata. testicular. and. other. with. in the. testicular. In P. kessleri, the. latter. ovarian. part. and. parts gonadal is the former.
(30) 30. fI. SuzuKI. in. located it･. The. and. the. of. ones. anatomically. As. described. I. are. be. can. taining. residual. shape. these those. with. In. the. are. part ova. course. of. always. or. is. length,. is in. which. the. It is also during. earlier. found. in. the. can. male time. character The. in. development. the. stage, in. some. remained develops soon. were. of the. NO. in. recognized. this. of. carapace. present. study.. functionally. sex. the. that. secondary. sex. length,. in. breeding. the. provided. few. is rather in functional the while. thought. male. character,. extent. and. after丘nal. the. with. type-1. external. be. can. carapace. of found. female. twice. female). to. male. be. testis-. specimen. females),. external. characters. of 4 ovigerous. The. period.. 2 specimens. CL. male. of. in. that especially. a. early. appendix this. spawning,. PA. to. related females. formation. them.as. shown. 5. 47一一→5,88. Sept.. 9-Dec.. 5. 112*. 4. 94→5,. Au雷.. 15-Sept.. 7. Åug.i,8,. 1.92. 5. 38---→5. 55. Aug.. 151Sept.. 5. Åug.. 17. 220. 4.91.→ ?. Atlg.. 1.5⊥Aug. 30. Åug.. 18. Sept.. 10**,. sex. which of. the. male. reversal were. male. TC Sept.i.8. Au雷. 27**,. alive charac_. below:. DE. 1.1.0*. 44. -. the. tO. can. present. testicular. investigate. only. typical. It. year･. tissue. again.. theJObservation confirmed with laboratory a during the short. ters. in. pleopod 188 functiohal. the. is. The. the. and. 3･00mm-5･0011nm;. is. ovarian is also. in. (from. female. masculinized. 1･57mm. the. belonglng. through. seen. most. the. that. so-called differentiation. in the. occurs. in. idential. tissue,. to. reversal. months･. among. of the,feminized. masculina. was. be. species. con-. problem. part. converts. probably. second. (24 individuals,. number. used. one. re-. testicular. undoubtedly. oviduct. sexual. the. female. and. residual. specimen, study. functional. nine the. The. scarcely. reduced. the. connective. length,. male). the. in. ovarian. smallest future. sex. carapace. continues and. this. primary. to. and. than. that. of. female. 4･50mm-6･00mm period which Brst perelOPOd. for the. male. morphologlCally. residual. the. with. the. stage. the. range. (from. reversal. other. in. interesting. its lifetime;. the. anterior. are. disappears. not;. p?rts. sperm-reservoir. containing. belトreCOgnized.. not. it is remained. while. part and. gonad. each. found. already. or. development,. gonadal. can. ova. seen. period.. it is another. while. ovarian. the. separated. ovo-testis”. species. the. in. t■he. and. the. not. are. male,. fertilize. shrimp, other is still remained partly. seen,. spermatozoa. functional. hand,. be. also. both. shrimp,. as. an. Junctions. diminished. the. and. can. to. able. the. on. gonad. residual. of the. are. Spermatozoa. the. side.I. oトtesticular. breeding. the. always. feminized. pair. two. in. outer. portion. Junction. these. has. species. spermatozoa. moreover･. and. in. observed. posterior. that. the. proximal a. obtained. in the most. even. a. is in. the. at. moreover,. by. specimens this. coiled. and. conjugated r It is interesting. above, ;. not. and. latter. the. and. species. in the. organs. productive part. two. respectively･. visible. the gonad. of. is simple. previous. ovarian. Junction. side. deferens. vas. in that. inner. the. Sept. 7. TP. l･→2. 1-→3. 1.-→2. 1→2. 1. 1. 1. 2.
(31) Fou(. Two tbeir. external. growth. occurred;. NO,. alive;. TP,. transition. The. sexual. 1ogically.. 220. specimen. in. still. developed. ova. phase,. the. and. H.. that. morphologically the. of. the. species, forms morphologlCally active,. most. female or. form13. be. in. seen. functional. male,. not. the. on. about found. still. in. condition. can. be- distinguished. In. present. into. three. in the. in. are. cells form-3. in'which. cells. functional. though physiology for the future study.. explained,. the. can vitellogenesis diameter, but in the. long. ln. Decapod). the. form-1. remaining. of. is composed. vacuolate.. the. gland. (Crustacean. that. well. with. changed.. less. 40FL. observed 192 and. androgellic. maenas. still remained female, functional. ovum,. small is. it. still not. are. in the. that. the. may. was. male). shrimps, 丘11ed part. were. be. bisto-. Nos.. other. mal占character. phenomena. endocrinology It is also interesting even. are. 14) ;. investigated to. cells Consid■ering above. degenerate state,. external in appearance. these. of. or. ecdysis shrimps. 15).. was. is in degenerated more. the. regressive, its variability. and. and. glandular. cells. the. ovarian. Carcinus. are. the. the. indicated. described. which. (seeText一点g.. characters. which. which. as. and. ･form-2. the. are. gland. glandular cells A. komin'atoensis,. on. female. the. 1960). (Amphipod). gammarellus. with. appeared･. which. Text･fiE.. above. (from. although. sexual. (1957;. date,. (see. listed. earring. external. CARNIAロⅩ-CoTTON, Orchestia. and. female. DE, during. pleopod. of gonad. changed. marked were. the丘rstpereiopod. of. 122,. Date. spawning,. mm;. specimen. state. 110. the shrimps. alive.. period,. second. each. transitional. shrimps,. were. type. of the. of. of. Nos.. PA,. number;. type. in. 31. Athanas. characters. after. length. transition. them male. immediately. Genus. the. represent. kept. external. carapace. organ. The. to. asterisk. during the. occurred. of. an. with. which. of. TC,. were. the. on. ecdysis. CL,. belonging. characters. sexual. asterisks,. The丘rst. Shrimps. marked. specimens. double. in. AIpheid. ovum,. lOOFi. about. in. long. diameter. As. fat. the. to. in. vacuolate. cells located female. the. in the. male. specimens,. These. ones.. A. specimeTl. material. which. character. form. to. 1. second, on. and. the. those. The pleopod cutting. serr･ations, culina. and. and. an. ; in. male the. edges the. the. of kominatoensis. external. re一ated. Of. A.. itidicus,. there. on. The. rn the. Brst. first pereiopods are. the innermiddle. portion. sexual in. the. and. symmetrical. teeth,. both. same. resembled. pereiopod. are. prominent with. external. closely. species following:. is provided. pleopod. interna. the. is the. phenomena. study.. be found. vitellogenesis.. i. are. shown. can. the丘nger;s. secopd】. three. with. are. substance. witb>fat. dorsalis. of sexual. taxonomic. as. male,. are丘11ed. A.. arRd. these. character. typical of. appendix. be. phen9mena. in. organ. A.. to. for the observation. preserved. of. seem. them. of. most. they. aca7uhocarpus. used. sexual. sperm-reservoir,. while. phenomena. ⅠⅠⅠ.Sexual. Every. the. near. an. and. besidesminu,te appendix. mas､-. of主ts endopodite;.
(32) 32. E.. in the. female,. typical. minute. serrations. and. interna. only･. appendix to. related. 2･. sexual. The and and. other. with. is. paired. latter. one. pore. the. on. are. appendix. afe. but. nothing. the. masculina,. Vari革ble由appearance,. former. inner. latter. the the. on. the. sternum. and. of the. side. co叩gated one. the. of. boththe. of. outer. is. anterior. with. coxopodite. between. articulation. consists. is situated at of it; the former. side. and. longitudinally. one. each. opens. ho. chaLr畠cters. the. Junction. has. shrimps.. and. the. at. there. symmetrical,. pleopod. of the. parts;. genital. male. second. These粗ale. posterior. female. the. the. ovarian. the. gonad. are. pereiopods. condition. gonad. testicular. The. the丘rst. SuzuKl. each. respectively_. third. pereiopod. coxopodite. and. Bfth. of the. pereiopod.. 3･ in. In the. the. posteroTOuter. bigbly,. though. 4･. some. kominatoensis; 5･. The. deferens. not. A･. such. Among. 14. masculina 血gers. of two. other ova. and. (in. the丘rst. the. found. in the. of. matured･. the. residual. male. shrimps carapace. kominatoensis Spermatozoa,. of. with. are. ovlgerOuS. gonad. is about･. gonadal. The. anatomically･ and. in､ male. vas･. the.. phase二. ovigerous). 3.35皿m-4.21mm. in. has. cutting. no. appendix-. edges. thel. of. female. ovlgerOuS. and. yellowish orange､ 200〃-400〃 in diameter),.. are. residual the. and. be. can. width･. and. 3.35, size are to･′･ is.closely similar. maximum. condition testicular. successive. spermatozoa. vestigial sperm-reEerVOir･. 50/=n. minimum the. the. developed,. well size. of. In the. length). these. the. are. are. both. on. of. their. specimens,. spermatids. the. portion. 9 shrimps. tooth. of the. length),. ofA-. sexual condition of it not disappears.. but. size. gonad. spermatozoa. (9. the. with. degenerate,. side. posterior. in carapace. is丘11ed. range. is. part. the. on. maximum. The. postero･outer. some. in. A･. ova,. testicular. mm-4･47mm. that. large. tothat. in. not. (3 specimens. prominent. female. regressive-. sperm-reservoir.. resembled. or. examined,. (4.00 mm. no. found. length･. ln. regressive,. phase. pereiopod･. ovigerous. rather. while. is. is. and. specimen. there. non. contained In the. one. is also. in size.. in relation. female. m.uch. remains. is situated. (minimum. length),. 9･8FL. specimens. in. are. are. either. gland. in the. be. can. part. deferens. vas. remain. symmetrical. female,. specimens females ovigerous carapace. always. its form. indicus:. and. and. masculina. changes. 5. and. form. gland. in the. shrimps;. gonad. testicular. the. spermatozoon. androgenic. and. regressive. spermatozoa. of. size. appendixes are. and. 6･. of. vestigial and. the. the. it is rivet-like. The. female. Side. form. The. female,. ovigerous. part. is histologically. spermatogenesis. can. be-. in it･ The ova ova young (the range of size oftbe large young rather 60 fノー80/∠ in diameter) which in colour and rather transparent, ar? white and located in the antero-outer the The is･ side of ovarian part. viteliogenesis found･ The not yet is developed appendix masculina of these shrimps well as long as interna. a the appendix Except (No. R3-5, 2.lot sihgle specimen seen. is. mm. irl Carapace. length), there. are. prominent. teeth. on. theーcutting. edges. oE.
(33) Four. fingers. both. A, male. Shrimps. of 'thefirst. phase. which. are. inner. side. of. but. it. ically,. length),. large. (in rather. yellowish. mental. appendix. form. of such kominatoensis are. no. the. on are. and. appendix. is. much. width, 2･34mm. with. matured follicle and range. of. cells size. ☆itellogenesis. of. dorsalis:. 5. be. there of. a. specimens. symmetrical. and. gonadal ; the. orange. yolk. there. The. chela･. female. Brst. the. rudト The･. are. appendix. condition, ovarian. and. part. (in rather. however,. and. this. vestigial. is. but. minute. the. ova,. male. in all丘ve. that. every. gonad;. other. on. the on. specimens.. specimen. phase. specimen. in the the. pereiopods. the. the. and. large. cuttiⅠ1gare. cutting edges Examing･. is in functional. large. many. with yellowish ova丘11ed is 500 fL-600 fL in diameter).∼ ovum, 20F=n young about. of size in. the. still remained. tissue. with. the. female. and. serrations. serrations. range. 3already is. one. specimens,. minute. in. asymmetrical. four. is found. with. In. ovigerous.. andfilled. diameter. all. small. surrounded of. 15;. minimum. ln. side. are. study. are. it is clear. is enlarged large. the. other. masculina. is observed vitellogenesis diameter/ The testicular part gonad. in. and. in the. FL in width. is 40/∠-60/=n. cutting. in Text一点g.. ova. young. 8. other. such. While. it is 150. antero-iniier. ova. besides. nothing. well. 200FJ-250p. the. The. the. on. developed. developed,. and. teeth. on. shown. pereiopods. in. The. the. ln. asymmetricaf. 2.. smooth is. spetfnatOZOa,. large. tooth,. 血ger,. being. length),. (No. Rl-2). 8, 10;. kominatoensis. well. in. used. prominent. 丘Ⅹed. the. found. the. 2 proiTlinent. or. shrimps. oogollia. the. them/one specimen (No･ Rト1, Text一色g. ■11),the. the. has. pleopod.. with. Text一点gs.. numerous. with. Among. is. also. rather still found.. is not. of A.. The can. 1. male. in carapLaCe. spermatozoa. nurse. in. the. that is. in. (No･ R217,. specimen. to. sperm-reservoir size. has. pereiopods. masculina. resembled. The. maximum. of the. is 50p-loop female. the､second. provided. perelOPOd. of. 5･. A･. large. the. are. shrimps. The. edges. form 4 and. 4. specimens,. male. shown. its. edge. gonad. to that much (type-3) of A. resembled first pereiopods are there､ symmetrical and The of its丘ngers. the cutting edges eggs carried in 0.45mm-0.67mm in diameter shape, ovoidal arid. as edges of both丘ngers have the symmetricalむst. Specimens. chela,. of the. side. ovlgerOuS. of. anatom-. visible. is. masculina. tooth. abdomen. the. LCutting. the. not. in the. (Text一触. 15 ; 3). The. pereiopods. and. found. are. spermatozoa. Every. ovigerous〕. 3.28mm-4.15r. in number.. In. Brst. is. part. of width. in the endopodite. appendix. prominent. under 90-170. are are. postero-outer. residual. size. masculina. shrimps. in. are. shrimps. oogonia. in the. some. -12. ova developed well with 400FL-500FL in diameter)∼. are. size. testicular. bistologically. contained. maximum. 33. size. numerous. and. The. part.. ovarian found. Athanas. maximum. their. of. (6. phase is filled. part. in.colour. be. can. Genus. toe. examined,. and. ovarian range. orange. the. and. minimum. (minimum. the. ova,. specimens female. in. are. the. the sperm-reservoir. and. 20. specimens. in carapace. to. (Text-fig. 7).. Among. 8 specimens. and female. belonging. pereiopod. acanthocarpus:. In the mm. AIpheid. ビcan. ,in be. the. observed. ,postero-outerside of by transverse･serial.
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