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(2) 12. S.. A. GAMel. B. C H. ::.I:''i 訂ヽ. ■ .′一. /:. 1:. Jl 1. 1ft. `? ウ. P. トtL. ･. Ⅰ. D. K. ∼. 1. mm. H-K l. ′ レ. V. ●. レ. V. ∫. /. ヰ. E ∈ 一ハ. E ). A′B. G -,-. 1</. ′. ′. チ ￣▲. ト iL. I)･L ▲′. 0.5. L. F. mm. F′G. Fig.. i.. Bathycuma A:. 18.1mm. 1ateral F:. (C) and. antennule.. maxilla.. granulatum dorsal dorsal. G:. sp.. B:. (D). ∨iev.. antenna.. nov.,. lateral. view.. H:. E:. holotype. telsonic. 1abium.. segment Ⅰ:. female,. ovlgerOuS. C-D:. view.. right. anterior with mandible.. portion. uropods,. length,. about. of carapace, dorsal view.. ∫: maxillule.. K:.
(3) Four. 38o35A'N,. Kinkazan,. 1 Åug.. 1981.. Description. bearlng. depth. 丘ve. from. 634816416m,. Gear:. The. Only. Crustaceans. far. is. an. moderately calci丘ed. The (Fig. 1, A-D) carapace and long. dorsum. there. The. surface. The. ocular. of. lobe. ocular. long. 3/4. as. the. second.. the. decreased. in. segments. are. The The. abdomen 丘rst segment. 1 1/2 times The. dominal. The. segment. is. third. the丘rst third. flagellum. is nearly. 3/4 is. segment. is minute,. The. antenna. The. labium. as. long. as. is 1 1/2 times. segment. distal segment. i, A,. B, E) is. is. the. nearly a. portion. as. 1, G). shown. serratsd.. 2/3. shortest,. is 'about. B). long. as. as. to丘fth segments second in depth. The side plates. of. 1/2 of the total body. length.. little shorter. than. There. between three. are. cylindrical, is 1 1/2 times. than. as. long. long. as. rovs. about long. than. as. the. is vary. small.. in Fig.. 1, H.. -1/4 of the basal. main one.. the. second.. lash,. the. aes-. second,. distal. portion. The second. main 3-segmented ; and. the. as. long. two as. the. near. splnules. 3/4. bears. and. the third peduncular segment, as long as the distal two segments. as. fifth ab-. the. backward. produced. itself.. segment. several. and less. a. portion.. shortest,. i/3. little shorter. (Fig. is. is moder?tely. The. is much. segment. little. a. the. (Fig. i, A,. than. more. dorsomedian. hairs. sparse. ele-. visual. in meet and lobe. The ocular. isfinely. is the. hairs.. short. angle. segments. teeth.. of. fourth.. the. peduncular. with. provided. flagellum. the. 丘rst. apex,. as. On. prominent.. (Fig. 1, A, F) is slender,. antennule. the. at. as. the. shortest, slightly less than the second, and provided in The are second third segments and subequal The fifth segment is the longest, than the fourth. as. the. without. Ⅶ`ell as. 1/3 of the telsonic. on. double. row. and. long. times. swellings.. digitiform, as. above,. from. seen. sparse. segment. B) is much. (Fig.. abont. The. A,. 1 1/3. slight a. and. is the longest.. its posterior. and. for. spinules. thetascs.. long. segment. segment,. of several. more. as. telsonic. uropods. plate.. little. a. and. about. and The. is the. lateral. small. with a length,. the. (Fig. 1,. strictly As width.. for two. mm,. is. from. seen. and the. Of carapace. as. as. 18.1. integument. and. thoracic. length. outline. anterolateral. margln. segment. second. successively four posterior. and. (KH-. far off. about. granules. 1/2 its. The丘rst. in. truncated. about. of all free. carapace.. The. short,. lower. or. length. as. are. concave,. The. except. minute. narrow. distance. a. diameter.. carina. and. lobes. for. anterolateral. combined. with. small. is shallowly. The. pointed. The. is very. pseudorostral. notch. antennal. the. lobe. The. ments. front. are. of. length. than. dorsomedian. is covered. carapace. 5349-5368m,. female,. ovate. horizontal,. margln. Para-. span.. m. length,. little less. a. which is almost is no distinct. dorsal. the. is. depth,. the. as. side, the. is somewhat 1/4 of the total body. little less than. a. Jul. 1981.. 9639), St. ll. depth. ovigerous. in. 13. 31. (NSMT-Cr.. of 4. 0.9mm. about. embryos,. off Kinkazan,. 145o15.1'E,. Beam-trawl. holotype. Trench. Japan. the. (19mm). oostgites rudimentary 145o15.7'E138o35.5'N,. with. 38o33.9'N,. 81A),. Cumacean. 144o20.3'E,. female. type. New. and. combined; The. accessory. 2-segmented;. its.
(4) 14. S. GAM6. The 35. setae. The. the. The. and. length. inner. shown. is. Fig.. The. merus. and. right. bears. mandible. 3. as. times. 1/2. as. bears. long. distal. long. as. as. three. palp.. the. in Fig.. shown. its outer. (including. the. on. 1,K. are. maxillipeds. nearly. is cylindrical,. carpus.. in. two丘1aments. hairs provided with plumose Its outer distal prolongation. and. margln.. ischium. 1, ∫) has. second. of basis. (Fig. 2, C). together,. as. boaトshaped,. normally. process.. (Fig. is. maxilla. The五rst. the. incisor. maxillule. The. 1iped. (Fig. 1, Ⅰ)is. mandible on. a. maxil-. on. spines. of carpus. middle is about 3/4 as long. which near. spinules. of third. of several the. B.. distal segments. remaining. row. reaches merus,. and. prolongation) the. as. and. 2, A. distal margln.. the. The. the The as. pro-. C H I. ＼. D. B. ･111. A. ∼ ⊥一ー｢. t. 347. <r /-. ノ. / ∫ I 1. 3 ■. I l ll. E). E. / /. G Fig.. 2.. Bathycuma. and second peraeopod.. F. granulatum maxillipeds. F-H: (F) third. (B). (. ＼. トJ. a. nov., holotype female. A-B.･ Brat (A) ovigerous E: second C: third maxilliped D: Brst peraeopod. to丘fth (H) peraeopods.. sp..
(5) New. Four. Cumacean. is slightly 3/4 as The丘rst peraeopod. long. podus. The. misslng･ about. long. several. The. basis. much. and is. ischium. long. as. about. less than. than. short.. The. 3 times. long. as. three. unequal. The. distal. the. as. third. is. aplCal. segments. plumose. are. base,. and. hairs. and. the. basis. the. at. are. 1 1/3 times. nearly. almost. cylindrical, distal. the. remainlng is about carpus. two. provided. The. the. as. merus,. dactylus. The with. is. and little. a. lateral. short. the. at. together.. long. as. as. widened. segments. twice. and. long. as. slightly. together.. segments. the propodus,. as. distal. widened. There. the dactylus.. than. its. and. 15. margins.. basis. shorter. very. longer. much. somewhat. shape,. (Fig. 2, E) is. The. and damaged. Trencb. Japan. the. maxilliped.. lateral. the. is. in. of third. peraeopod. peraeopod･. base,. (Fig. 2, D). on. spines. second. of丘rst. and. the. as. from. the carpus,. as. is cylindrical. basis. long. as. Crustaceans. spines. splneS.. (Fig. 2, F). peraeopod. is. 5/6. long. as the second,･ the is about 1 2/3 times as long as the remaining distal segments together. The fourth peraeopod (Fig. 2, G) is about 5/6 as long as the third; its basis is a little shorter than the distal segments七ogether. The別th peraeopod (Fig. 2,. about. as. basis. H). is about. of distal The. 3/4. peduncle. times 7 spines. as. the. on. the. peduncle,. the. distal. outer. The丘rst. three. Allotype. subadult. different. long. The. 3/4. deeper The. segments. the. length. 2/3 of combined. endopod,. as. in depth. have. length. is. the. 9-5. telsonic is. endopod is. 3 about inner and. the. and. spines. is. the. aplCal. spines.. the. lateral. ･on. as. well about. as. is. exopods.. heavily. like the. thoracic. holotype. to丘fth. width.. long. the. as. The負fth. and. segment. second fourth or. nearly is much. are. segments. The. the. female.. (Fig. 3, A,､B). segments. Theむst in. in. lnjured. 1/4 of the total body length, little less than the depth.. a. carapace.. as. developed. is very. male. about. all free. in length.. subequal. 2 lateral. 15.7mm,. about. which of. others,. on. has. well. (Fig. 3, A, B, E) is short,. abdomen. segment. 10 spines. bears. and. The. basal. with. the. as･. margln.. the. segment. long. apex.. vidth,. the. distal. In general. long. as. and. furnished. of peraeopods. length. than. are. the. male,. the. as. decreased. sively. pairs. combined. than. more. at. inner. the. on. and. the. (Fig. 3, A-D). carapace. as. to. of body･. parts. The twice. is about. 2-segmented;. one,. margln;. 2 splneS. and. 12 spines. with. is subequal. exopod. marglnS. and. as. long. as. The. its basis. (Fig. 1, A, B, E) is about6/7as. of uropod. provided. long. as. fourth;. the. as. segments.. segme叫and. 2/3. long. as. succes-. is. wider. the丘fth.. in shape. cylindrical is about segment 2/3. The丘rst as. long. four the. as. fourth. The se宮ment. pods. as. The female. segments. telsonic. (Fig. 3, E) is. segment. its posterior. in the. female. antennule The. portion. a. little shorter. fifth abdominal between the uro-. than. the. backward. produced. specimen.. (Fig. 3, F) is somewhat. 丘rst peduncular. combined,. is largely. and. segment. furnished. with. stouter. is. a. lateral. and. little shorter splnules.. than. shorter than The. the second. that. the. of. distal. tvo. segment.
(6) S.. 16. GAM6. ■ ■. C. r空ュ ヽ. ■. JL4. 1. T. 一 4. 41t. ハ. ^. JPIpI. A-. A. D. tt^. ′ヽ. {}. /I. _. 1. r. 【^ ^. ^^. ,メ. H. ノ 十 ′. 1. /. ｢ l. ). i. E. I. G. f F. ∼ ♂辞⊃. ＼,_二. ヽ､-ンー_.... J』望→. ▲●●■-■■. A,B.E 0.5. 1. mm. G-Ⅰ. ′1 1 ㌔ ､一一っ. 詩T. Fig.. 3.. Bathycuma. C-D:. lateral. anterior. portion. two. antennule,. aeopod.. granulatum. A:. 15.7mm.. last. 1. sp.. view.. B:. of carapace,. nov.,. allotype. anterior dorsal. subadult. portion. (C). and. basal segments with portion abdominal basal H: G: portion third maxilliped.. of. m. male,. length. body,. dorsal. about. view. lateral E: (D) view. ど: of right uropod. of. basis. offirst. per-.
(7) Four. is. little longer. a. the. third. the. as. Cumacean. the. than. third. Tbe the. basis. of third. remaining. segment. 2/3. long. as. 17. as. twice 且a-. accessory. 21Segmented. and 3. of. pairs. long. as. is about. less than. Tbe丘ve. togetber･. segments. lash;. of main basal one.. the. as. 1/2. The. minute.. (Fig▲ 3, G) is much. maxilliped. distal. is very. the first segment. as. fFrench. Japan. the. is about main丑agellum 3-segmented ; the arst segment. and. the. second;. from. The. third.. is nearly 2/3 as long gellum is about the distal segment. as. Crustaceans. segment,. peduncular. long. as. New. times. ;. long. as. peraeopods. ar?. damaged. Tbe. peduncle of the. portion. four. are pleopods Remarks.. Seychelle-Ceylon,. by. having. carina. bearlng. tinguished distinct. 8 spines.. about. Five. exopods.. abdomen. is most species. new. Ocean,. have. for. except. The. pairs. basal. the. are. rami. of rudimentary. the. on. The. has. margin. of peraeopods. pairs. present. Indian. the. its inner. side.. right. misslng. Thefirst. (Fig. 3, A, E) is damaged. of uropods. the. 1040m. carapace. double. a. covered. B.. to. allied deep,. from. with. it. which. minute. 1969. JoNES,. magma. from. is well and. granules. dis-. without. of teeth.. roⅥr. Bathycuma. declinatum. sp.. novュl.. (Figs. 4-6) Material young. (18.3 mm). male. 且agment. of female 6348-6416m,. depth. Description. in the. different. The less. carina lobe to. bears. by. phasized anteriorly out. as. the. on. concave,. acute. than. decreased. lobe,. 5/6. teeth,. and. its. is slightly. is entirely. margln. have. which. and. a. and. 144o20.3′E,. and. meet. provided. in front. vith. two. or. the. pairs. at. lobe. dorsal. of. antennal. polnted,. the. em-. is. carapace. Of. in shape. truncated ocular. posterior. The. margln. triangular. of the. tip of ocular. in the. is sharply. lower. are. dorsomedian. splneS.. angle. depth.. the. The. interrupted. little. a. and. than. more. arched. from. ridges. anterolateral. lobes. length,. run. shortly. lateral. no. pseudorostral. body. total. or The spine. anterolateral The lobe is very ocular small,. lower. and. with-. apex. as. seen. for′about. as. long. spines. and. some. ser-. margln.. of all free tboracic The carapace. second. length. combined. allotype. (3.2mm). juvenile male. 144o19.4′E-38o35.4N′,. which. carapace. Of. The. the. width,. dorsal. of carapace. serrate.. ocular. 38o33.3′N,. of alternating. margln. sides. an. the. side, rows. hind. the. as. elements. bent downward, above,. rations Tbe less. long. visual. from. ; paratype:. 9640);. of body.. as. is shallowly. notch. (NSMT-Cr. a. far off Kinkazan. 31 Jul. 1981. Gear : Beam-trawl span. of 4m Holotype is a female, length injured about 3.2mm, somewhat. the. The. portion.. (3.^2mm). (Fig. 4, A, B, E) is 1/4 of the. two. the. 9641). 12 (KH-81-4),. parts. twice from. seen. female. (NSMT-Cr.. St.. carapace. than. As. Holotype. examined.. of. the. in width. as. well. as. in depth,. and. segments. to丘ftb their. side. (Fig.. 4, A,. segments. plates. B). successively. are are. is slightly. distinct..
(8) 18. S. GAM6. B. ▲■. A. ■J. ?1. ■l ▲J ■l. J■ ▲▲ ll l. ▲ 44. 7. Vr. I. †＼. ー⊥且+. A-c. ＼. E. C. /. D. a;. 7ご孝 H. F. 1- /. ∫. 【. m. Ⅰ. K 1. J,A 0.5. F-Ⅰ. Fig.. 4.. A:. dominal with. declinatum. Bathycuma. mm.. lateral. view.. segments. right. antennule.. maxillipeds. with. uropod.. H:. sp.. B:. maxillule.. holotype. cephalotborax,. uropods. E:. nov.,. D:. female,. dorsal. posterior. m. length. C:. view.. portion. anterior portion of carapace, I: maxilla. J-K.･first. mm. of. telsonic lateral. (J). about last. and. ll.2. two. ab-. segment view.. second. F:. (K).
(9) Four. The. two. subequal fourth. The. posterior. telsonic. segment. inal segment,. is very. are. segments two. for about dorsomedian. Cumacean. long. as. is. from. more. than. in. length,. subequal The. segments.. as. the. the. is. total body. length.. long. as. the. than. the. the丘fth. between. backward. than. longer. much. as. itself.. segment. 19. little shorter. a. and. 3/4. Trench. Japan. 1/2 of. is produced. portion telsonic. the. fifth segment. (Fig. 4, A, C) is about. its posterior. and. 1/4. Crustaceans. (Fig. 4, A, C). abdomen. The丘rst. The. New. There. are. abdom-. the uropods its. on. spinules. portion.. (Fig･ 4, F) is somewhat. antenule. little shorter. a. robust,. the. distal. two. peduncular. segments. segment. combined.. The. is nearly as long secon･d･ ･ The main且agellum as 3-segmented, the third peduncular segment, and provided vith two ; aesthetascs is much longer the丘rst segment than the second; the third is very segment third. is shorter･. than. The丘rst. stout.. s･egment. than. the. The. is very 1/2 asllong as the Brst accessoryflagellum small, about lash, and 2-segmented longer is stout, of main ; the basal segment much. minute･ segment. 7fh ペ上. 'i:. もhj ∼ I>r. ′ ′. ＼. ＼ ＼. A. ＼. D. C. B. F. E. Fig･. i. 5･. Bathycuma. 1iped･. (F). B:. arst. peraeopods.. decll'natum peraeopod･. sp.. C:. nov･,. second. holotypefemale. peraeopod.. D-F:. rna. A: third. third. (D). maxil_ fifth. to.
(10) 20. S.. the. than. distal. one.. The. antenna. Tbe. mandible. mobilis. is. as. in Fig.. shown. is normally. 19 setae. and. Tbe. GAM6. boat-shaped, incisor. the. on. (Fig. 4, H) has. maxillule. 4, G.. long. as. several. half. way. with. a. the. outer. longer. is much the. the. along. On. splneS. as. small. a. the. the. such merus. or. distal. end. inner. The. the. the. of. reaches. and. lneruS,. has. merus. distal end･ The is about as. two. carpus. dactylus. The. propodus.. a･row. with. prolongation. shorter. distal On. splne. provided than. is much. inner. small. and. Its outer. ischium. on. spines. and. together,. long. as. propodus.. The. is almost. in the The. (Fig. 5, B) is damaged. peraeopod. basis. splneS. cylindrical of its ventral. middle. basis. in. shape,. furnished. and. is missing･. a. with. Of long. palr. surface･. (Fig. 5, C) is. peraeopod. of second. its distal portion. and. little less. a. 3/4. than. long. as. ′`rhe. The ischium is very distal segments together･ short･ remainlng is much than is about 2/3 as long as the carpus, the which shorter long is less 3 The dactylus together. than times as much segments. the. as merus. two. propodus, The basis. and. fourth. 1 1/3 times. 1/2. long. as. the. (Fig.. 5, F) is about. as. as. distal segments. longer. than. long. as. the. margln;. the. the. 6 splneS. the. its. and. together.. The丘fth. 1/2. the. its basis. third;. is about. the. apex･. several. with. The. spines. the. inner. with. is. peraeopod long. as. as. the丘rst. 7. lateral. On. splneS. the. The. the. margins. endopod. the. inner. splnulose margln. than. is. is much. inner. longer and. telsonic. segment. splnulose. the. On. than. margln･. is slightly. exopod on. little longer. a. 2-segmented;. 3 splneS. bears. segment. is. the. On. peduncle, and furnished and. second,. at. furnished. and. second,. segments. together.. itsbasis. (Fig. 4, C, D). uropod with. as. second. splneS. unequal. of. provided. segme叫and. 3/4. than. shorter. fourth;. the. as. distal. remaining. little. a. distal segments. remaining long. the. as. the. distal as. tOge也er.. peduncle. nearly. long. as. (Fig. 5, E) is. peraeopod. aplCal splneS･ unequal is much than shorter. several. (Fig. 5, D). peraeopod. about. The. with. provided. third. is about. The. the. and. endopod,. three. unequal. spines. its apex. The丘rst Allotype is very. male. Tbe. seen. three. from. pairs. young. to. 1 3/4 the. (Fig. times. bear. of peraeopods. 18.3mm,. length. male,. similar. carapace. than. more. As. The. merus.. than. The丘rst. at. are. maxilliped distal segments remainlng the inner margln. along. spines. furnished. 4, Ⅰ.. in Fig. 4, ∫ and K. shown (Fig. 5, A) is slightly less than 2 1/2 times. third. of. the. as. lacinia. a. process.. is as shown in Fig. maxilla The丘rst and second maxillipeds basis. bears. two丘1aments.. Tbe. Tbe. the left mandible. and. the 6, as. side, the. about female in general. AID) long dorsal. is about as. the. developed. well 1S. exopods.. little lnJured･. a. The. young. appearance.. 1/4 of th?. total. is. body. as width, which is horizontal almost profile. length,. wide. as. inJ the. slightly the hind. deptb･ por-.
(11) Four. 5. New. Cumacean. Crustaceans. from. the. mm. 21. Trench. Japan. ___ー､. A′B.E. E. ■.▲ -. Ill:-. -i.. /. B. ＼. F. A チ. ㍗. D. C. 工. I.:<<. ”. /. /-. ” G. I. ＼. ㌔. ･). ′(. .且ふ. 1. 1. mm. I. ∫. ∫. 1. ∫ ･E-. mm. G-i. Fig.. Bathycuma. 6. A. : lateral. uropods, pod.. B. view.. carapace,. of. declinatum. lateral. dorsal Ⅰ:､second. view.. :. sp.. anterior. (C) F. peraeopod.. and :. nov.,. a11otypeテoun'g､血ale,. length. of body-,上d･org&1T:view.. C-D. portion dorsal. (D). viev.: b､E;-7posterior G,: third ma長illiped. H. antennule.. I-L:. third. ■(.I) to負fth. (L). 18.3mm.. anterior portion portion of body with. :. basis offirst. peraeopods.. 1. i▲し. about :. .`l. peraoe･.
(12) 22. S.. for about. tion bends. 2/3 of the. downward lobes. pseudorostral. lobe,. the. ocular. are. scuttered. The. The. the. distal. third. together:. posterior. twice. about. anteriorly The long. as. dorsal. segments. (Fig･ 6, A, B). as. There. splnules.. segment. is. much. flagellum. second.. 1/2. lash,. (Fig. 6, A). antenna. of. long. is. barely. The is. segments seg-. third. 1/2. long. as. as. is minute.. segment. teached. as. two. with. the. about. distal. the. than. splneS.. first;. the. as. little shorter. a. provided distal two. small,. 2-segmented;. and. and. is very. the. main且agellum. the. than. as. accessory且age11um. of main. two. and. between. lateral. The. 3-segmented,. is nearly. segment. The. the. distal portion. backward. with. little longer. a. in the. (Fig. 6, F) is. provided. length.. body. fourth.. the. as. is produced. than. is. peduncular arst segment. second. long. of antennule and. 1/2 of the. than. more. is damaged. E). portion. the. segment. The. 6, A･. combined, little shorter. a. minute.. thqfirst. for. of several. thoracic. segment,. the. is. and. surface.. third. aesthetascs;. ment. The. is. the. margin,. of pseudorostrum.. apex. lobe. rows. carapace. seg甲ent (Fig･. segments. segment. 1on虫aS. the. ocular. two. of all free. peduncular. two. to. (Fig. 6, A, B, E) is much is about 1 1/3 times as. observed.. urbpods. The丘rst. of the. its hind. carapace.. telsonic. fully. lobe. with. the. on. len郎h. segment. The. the. furni畠hed. and. abdomen. The丘fth. 主ilfront. splnules. than. frontal. the. from. length. carapace. meet. combined. shorter. not. from. GAM6. base. the. offirst. peraeopod. Tbe. basis. inner. and. provided. The distal and as. basis. inner. than. telsonic The. margin. provided inner. four. Remムrks.. terior. pairs. pres'ent. The. of carapace. ditectorum. spines. GAM古,. of are. spines. of the. the. the. as. along. merus.. the. base,. surface. and. at. γentral. re-. misslng.. and. shorter than the remaining is about l% times as long as the merus, dactylus The dactylus is twice combined.. are. as. shown damaged.. are. and. The. 6, J-L. be. may. peduncle. furnished. 13. spines the. as. has. a. little. on. the. exopod,. spines. on. ap終 have. of pera餌pOds on. in Fig.. with about is long 1/2 as of endopod about The the lateral margins. exopod. on. the. and. at. margin. bf p!eopod畠are. Segment,. first segment. with. the middle distal segments. peraeopod The carpus. (Fig-･ 6t B, E). the. of small. row. reaches middle 6, H) is slender, widened. in. The. long. (Fig. 6, Ⅰ)is much. together.. uropods. Thefirst -. (Fig.. spines. margln.. of second. segments. The. the. inner. a. with. as. the. prolongation. peraeopod long. two. provided. and. to the propodus stlhequal long as the propodus. The third t￠ Bfth peraeopods. longer. and. むst. with the. On. splnOSe. together. Its outer. margin. basis of. The. (Fig. 6, G) is 2 2/3 times. maxilliped. distal segments. maining the. of third. well. developed. Five. exopods.. pairs. the革bdornen.. 7. ･specific. =name. "declinatum”. be占d芸qdownward.. This. 1988a. Miyako-jima. from. far. off. refers. ,species. to. th'e fact. i去most alled (Ryaky申Is.),. I･. that to. B.. 1600m. the. an-. rotun-. deep,.
(13) Four. from. the. spines,. the. middle. and. the. Cumacean. Crustaceans. it is distinguished. which. dorsal. New. of. by. of third. have. segments. Makrokylindrus. bears. no. slightly. lateral. carinae.. (Coalescuma). double. the. end. of. row. is barely. exceeds. reached. of. merus),. nov･. sp･. mi?racanthus. 23. a. maxilliped. it. (in rotunditectorum,. abdominal. Trench. Japan. the. that the pseudorostrum. distal prolongation. outer. merus. from. (Figs. 7-9) Material. 9642). Holotype. examined.. ; allotype. (8.9 mm) (damaged);. young. rudimentary. 9644); 2 juvenile. 145o15.7′E-38o35.5′N, 1981.. Gear:. 145o15.5′E,. of 4m Holotype is. Description.. (including telson). The is thin. ment. The total body. On. depth.. the. the. lobes. eyeless ocular lobe dorsal pair of spines. for near. anterolateral The combined. 2/3. than. dorsally. as. fused. third. the. third. 1/2. than. The. and. are. splneS. fofward,. the. The. the. apek.. integu-. of. notch. (Fig.. segments. The. third. and. A. shallow. The. front. length,. than. more. spinules.. in. carapace. thoracic. is much. swellings.. meet. 1/3 of the. than. more. wbicb. antennal is splnOSe.. carapace.. of. pseudo-. the. small. and provided is obsolete.. vitb The. 7, A,. fourth. B) i占a little are. segments. a. The. together.. segments. segment. sixth. is slightly. less. less. 3 times. than. as. long. the-1aもtabdominal. as. TheT- post-apal be 1/7 as long may spines. portion provided with 4 pairs of lateral spines, and its terminal. without itself, and. misslng.. cular. with. (Fig. 7, D) is large. vided. small. damaged.. lateral. antennule is segment. a. ll.9mm. about The. tbe丘fth.. as. The. is. length. much. branchial. the. 1/6 of the. (Fig. 7, A, C) is. telson. the. as. long. telson. segment,. Aug.. a;. fourth. and as. 1. little less th.an-3/5 of the total body length. is subequal to in length, and much the second than shorter fourth. The fifth segment is a littlemore long as than 3/4. the. or. Kinkazan,. off. partly. vidth, row double. about. (Fig. 7, A, C) is. abdomen 丘rst segment. the. and. with. 7.1 mm) 38o33.9'N,. together.. The The. there. margin of length of all free as. are. the. carapace. long. female,. ll (KH-8114),. far. in8ated,. a. between. lower. or. less. as. is. projected. a. St.. marsupium,. telson. long. as. lobe,. round. ; paratype:. (male. splnules.. 1 1/3 times frontal. with. B) is largely. is preseilt groove are horizontally. dorsomedian rostral. (Fig.. length,. female and. with 7, A,. 9643) larvae. manca. (NSMT-Cr. female. a. span. a. uropods. covered. and. carapace. 2. (ll.9 mm). marsupium. (9 and 9.3mm), depth 5349-5368m,. males. Beam-trawl. with. (NSMT-Cr.. male. oostegites. (NSMT-Cr.. female. a. little less. short. hairs. knob. with. and. splnul･es. setae.. segrrtent, and. as. and. provided. on. lateral. the. The-mainflagellum. third. peduncular the basal one,. The丘rst. shape. and cylindrical.in th･an the distal two segments. 2-segmented with. two. ･･. the. pedun-. 90噂･ned,and. pro-. On its distal end there sides. is･about 2/3 as long as the distal segmlent. aesthetascs.. The. is 2/3. as. accessoryflagellum. long.
(14) 24. S. GAM6. ●I. ■. T. ■. t ll. lTp ▲ t. t -.. ー. ･-. ･EAI_. -i-I. ■■. '.. /.. A′ ■. ● ■ ■■. c. ▲ ■ ■. I一. r ■. ▲. .. ■ ■. I. 一 ■. -＼. 一 ▼. -JJ. 一■一. ▲. 1 P. ′. ▲. A. ＋. >. ▲. F. ′. ヽ. ▲ ▼● ヽヽ } ●. d. ＋. ヽ. ち. ヽ ヽ. I. t ■. ･ :. ■･●▲ヽ●. J. I. T. 4. I. 4. :｢r￣.-こて｢ r./一!一. yll. 1. dt. ･>･1-I.. ■-. I. 一. 一. ■. ll. ■. ー. ■. し￣. yl. i. ･,招;-ミ. ■Tl. ●. 1. J. ●▼. ▲. I. JL, ■l. J. ■■ ■. ●. ▲. I-J＋. ●. ▲. ■. 一. _●. D. C. ,･:･'. ＼. いl. ′. ∫ r. /. 〟 ′. ;. F. E. ′. ｢. H. G. 0.5. mm _....-_._･･<. D-a. 1. Fig.. 7.. I4 -. mm. Makrokylindrus. uropods,. H:. (Coalescuma). length. marsupfum, loth9,raX,. Ⅰ. C=. dorsal dorsal. ma3(illa,. view. view.. ll.9mm. about. C: D:. ■■ ■■. micracanthus. sp.. last. (including telson). abdominal. antennule.. I; Br!t rrla貰illiped,. segment. E; antenna,. nov.,. A:. /with. holotype lateral. view.. telsoわ,and. female B:. with cepha-. peduncle. ど; left marld主ble. G; maxillule.. of.
(15) Four. New. Cumacean. Crustaceans. from. the. Trench. Japan. 25. レク D. C. A. B. ^^. ■. /ヽ. V. y. I. ●. H. 侵. ら. ∼. E. r,rf-一. b. b. ㌔. ､.. ゝ. 7 7. G. F. 1. Fig.. 8.. Makrokylindrus. with. peraeopod. Paratype segment. (Coalescuma) A:. marsuplum.. D:. second. female,. manca. :. with. telson. Second. stage, and. basal. sp.. micracanthus B:. maxilliped. E-G: peraeopod.. third. third. length. about. portion. of. mm. holotype. nov.,. maxilliped.. (E) to丘fth. 7.1mm.. uropods.. H:. (G) last. female C:. Brst. peraeopods.. abdominal.
(16) S. GAM6. 26. is. little sh｡rt｡,. a. 1/3. about. The. long. as. is. mobilis. The. as. is as shown in Fig. maxilla The丘rst and second maxillipeds basis. long. as. the. as. hairs. a. with. carpus. small. 7, H.. the. carpus, as. are. the. as. spine. ischium. furnished. and long. together,. short. a. distal. the. on. spine. is about. as. and The. produced･. a. process.. distal seg甲entS. margln. is not. distal angle. long. inner. bears. mandible. in Fig. 7, I and Fig. 8, A. shown (Fig. 8, B) is cylindrical in shape, about twice. maxilliped. remalnlng. the. on. vided. of third. left. the. and. two丘1aments.. The. The. is. is minute.. sらgment. incisor. the. on. first segment. the. 7, E.. is boat-shaped,. (Fig. 7; G) has. maxillule. third. in Fig.. shown. 3rsegmented;. ahd. the. second;. 15 setae. and. lash,. main. (Fig. 7, F). mandible. lacinia. the. as. antenna. The. the. than. The. angle. two. with. spines bears. and. merus,. with. small. pro-. and. distal. the a. outer. 2/3. is about. merus on. The. end.. the. than. plumose. with. distal. the. near. is shorter. inner. propodus,. furnished. and. end･. the. near. splne. as. The. long as distal end. The is about 1 1/2 times as the dactylus. propodus The 8, is long, in shape, basis offirst C) peraeopod (Fig. very cylindrical as distal segments the remaining together, and provided about 9/10 as long. of splneS with a row of its γentral surface. a. spine. and. inner. the. on. provided and. carpus,. The The. is. The. end.. is 1/4. merus. long. as. inner. 2/3. is. 'dactylus. and carpus,. fourth;. the. combined. The. uropod. peduncle. bears. Thefirst. as. (Fig. 8, F) is distal segments its. basis. splnules. the. on. long the. as. the. Allotype. last. abdominal. carpus,. the. as. long. as. the. as. the. as. long. small. and. as. as. long. the. propodus.. isa. (Fig. 8, G). distal. segments. is missing.. its distal portion. is. together.. peraeopod the. basis. the. its basis. third;. as. the. on. segments. second; distal segments the. The. spines two. the. as. distal. margln.. distal. The丘fth. together.. segment,. two. long. as. the remaining little longer than. a. the. inner. remain-. the. near. splne. the. twice. is 1 1/2 times. inner. stout. as. as. The. margln.. two. lateral. long. as. have pairs of peraeopods In juvenile female (manca stage), length as. the. as. long. as. on. than. (Fig. 7, A, C) is damaged on. 2/3. spines furnished with. more. long. a. two. and. slightly. peraeopod than 1 1/3 times. of. bears. (Fig. 8, E) is 6/7. third. bears. and long. 2/3. than. more. about. with. provided. is 1 2/3 times. carpus. slightly less The fourth peraeopod little shorter than the is. the. base,. the. at. and. short,. as. The. margin. The together. The. is. middle. dactylus.. (Fig. 8, D) is slightly. together,. ischium. is much than the shorter as is about 1/3 as long The is as distal end. propodus. the. little dilated. a. distal segments. 1ng. than. in the. row. asuchspine. merus. the. near. and. merus,. The. peraeopod. basis. marglnS. ischium. spine. longer. much. second. 丘rst.. The margin.. a. with. lateral. the. On. and. well. developed. about provided. 7.1mm, with. exopods. the a. rov. telson. is 3 times. of 7-8. spines. margln.. juvenile. male,. length. about. 8.9mm,. (including. telson). is. very.
(17) Four. New. Cumacean. Crustaceans. from. Trench. Japan. the. 27. ー.⊥ヱ空_. A--C. Dl:= F. ヨ. A. I▼. rtへ t. t. 4. -. T. ウ. ヽ ▼. っゥ. I へ. I;. ヽ. >. 7. ･･一-. ⊂). C. Ul. ヨ ヨ. E D. a. g. ′lぐ ヽ. 巧. ■. ヽ ▲. ■▲･. . J∼. Ⅰ. 冗. 工. 1. ♂. mm. G-L. G. 〈7 1ン (I. H. l>. Fig･. 9･ length tbree. Makrokylindrus about. 8･9mm･. (Coalescuma) A:. segments abdominal distal portion of antennule･ Ⅰ･'second peraeopod･ pod･. sp. nov., micracanthus B: cephalothorax,. lateral. view･ telson. with. E:. F:. J-L:. ∫. and. uropods,. third. (J). to. dorsal. view. third maxilliped. Bfth (L) peraeopods.. G:. antenna･. dorsal. allotype. male, Juvenile C: last view. D: antennule.. H :丘rst. peraeo-.
(18) S.. 28. Th6. in general. female. the. to. similar. is wbicb width, in front of the small The. length. carapace. of the The. splneS,. pseudorostral. 1/5. about. meet. of. margin than. those. is. about. salient. (Fig･ 9, A, B). segments. as. carapace. lower. more. much. are. Which. the. of. or. anterolateral. thoracic. are. segments. 3/4. than. more. is. (Fig. 9, A-C). abdomen first four. The. The. long. as. lobes. carapace･. The. slightly. ocular. of all free. length. combined. for. lobe. is obsolete･. sharp. with. The. depth･. the. 1 1/3 times. than. more. slightly. than. eyeless. notch. is provided female.. is. more. round. antennal. 1/2 of the The. little. a. the. aspects･. 9, A, B). (Fig.. carapace. GAME〉. (Fig. 9, A,. telson. the. as. third. fourth. and. C) is 2 2/3 times. fifth segment. segments. long. as. is. combined･. tb-e last. as. length･. body. total. The. in length･. subequal. about. long. as. 3/5 of the. little less than. a. seg-. abdominal The. on a analrow of spinules each lateral margin･ and furnished with are its distal missing･ is about spines 1/6 of the telson its叫and portion that the female･ 9, A, D, is stouter than of E) The somewhat (Fig. antennule. ment,. The血st bined. The. two. the. is about. segment. The. antenna. times. the. third. peduncular. is long,. about. is. very. as. distal. the. the丘rst;. as. is. 3-. and. as. long. as. itsflag91lum. and. short,. long. as. 1/2. second･. the. as. segment･. 1 2/3 times is about. segment. second. is minute. (Fig. 9, F). third. 1 1/3. com-. segments. long. and. as. the. together;. segments. distal two. the. than. robust, long as. segment. the丘rst. little less. a. is. segment. main且agellum. segmented;. is. segment. peduncular The third. not. fully. yet. developed. The. basis. distal. remalnlng. the. inner. The. basis. distal The. ischium. offirst. in. are. (Fig. 9, Ⅰ)is third. The long. as. south_west tropical. last abdominal on. the. four present. This Africa,. eastern. On. dilated, and. the. as. along. of spines. splne. small. distal. each. in length･. subequal. propodus･. 5/6. about. like that. very. long. as. the. as. remain-. female,. the. of are. to丘地peraeopods. (Fig･ 9, A, C)早re uropods 1 1/5 times is about peduncle. are pleopods Remarks.. a. long. as. row. damaged. partly. its. and. and. 9, ∫-L.. Fig.. splnnles Thefirst. the. (Fig. 9, H) is. The. and. with. have. someⅥrhat. as. a. together･. segments. the. furnished. and merus. and. peraeopod. peraeopod second The is missing･. dactylus shown. together,. carpus and propodus is nearly 1/2 as long. dactylus The. 1ng. The. 1 2/4 times. (Fig. 9, G) is about. maxilliped. segments. margln.. margln･. The. of third. damaged long. as. outer. the五rst. species 4893m. Pacific,. the. distal. telson,. and. 13 small. about. is missing･ 3 times as. portion about On. splneS. inner. the. margln･. bear. pairs of peraeopods on. as. It bears. segment･. their. and. 1784. two. abdominal M･. resembles M･ deep, m,. and. Two. exopodsI. (M･). B且cESCU,. (M･) vitiasi LoMAKINA･. 1962. 1958. from. 1962. B且cESCU,. lomakinae. (M･) americanus M･. of rudimentary. pairs. segments･. from. from. the. Kurile-.
(19) Four. Kamchatka by that. New. Trench, the third. The. 2840. name. with. from. it differs from. free. of. is covered. Crustaceans. but. m,. fourth. and. speci丘c. carapace. Cumacean. thoracic. the. new. small. the. three are. segments is. species. Trencb. Japan. the. species. mentioned-above fused together.. dorsally. derived. from. 29. fact. the. that. the. splneS.. Hemilamprops. (?) abyssi. nov.. sp.. (Fig.10) Material. Holotype female examined. young with rudimentary 9645), St. ll (KH-81-4), 38o33.9′N, 145o15.7′E-38o35.5′N,. (NSMT-Cr･ depth. 53419-5368m,. far offKinkazan, holotype is. Description. length. 4.8. =about. The. The. the. seen. with. pairs. in. spines. A,. (Fig. 10, as lopg. carapace. two. of. rows. young. less. than. which. is. is somewhat. both. on. lobe♪. Beam-trawl. a. little. the. width.. furnished. and. there. several. are and short longitudinal. two. also. and. length,. body. than. more. in shape,. span.. oosteglteS,. total. lobe,. ocular. of 4m. rudimentary is thin.. 1/3 of the. spindrical. of the. sides. frontal. the. on. depth,. the. as. Gear:. with integument. The. B) is much. carapace. spines. hind. of. rows. As seen from the side, theーdorsal Of carapace. little The lobe is pro丘1e of carapace rounded, arched. and without ocular The is The visual elements. antennal entirely notch obsolete. anterolateral or lower is丘nely serrate. Of carapace margln splneS. the. 1981. female. (including telson).. mm. twice about from above. and As. 1 Aug. a. oostegites 145o10.1′E,. near. margln. is. The. 2/3. long. 1/2. and. the. as. long. as. narrowed. as. decreased. as. in. as. well. depth.. The丘fth. segment. 1 1/2 times. Thefirstfive shortest. 丘fth segment is the. The. length. the fourth.. as. 1/2. than. more. much. and. is the. segment. in. long. as. is slender,. lastsegment. The. of the. segments. lわngest. is about. 1/2. as. and long. the丘fth.. as. 1､he. (Fig. 10, C) is about. telson. segment,. slightly Of lateral. palrS. The cular. two. with as. long. as. is missing. tion. peduncular segment as. segment.. than. is slender,. longer. the. third. for. except. The. uropodal. as. long. peduncle,. last. the. as. and. abdominal. provided. with. two. distal splneS.. (Fig･ 10, D) spinules. 1 1/2 times. the. and丘ve. is much. segment. times. longer. splneS. antennule. nished. 1/3. C). The丘rst increased. successively. about. A,. (Fig･ 10,. abdomen body length.. are. in length. shortest.. The total. (Fig. 10, A, B) is nearly of all free thoracic segments The丘rst is visible dorsally segment carapace. and laterally, The are the second. second to匂fth segments successively. also. and. is the. length. combined. as. a. than. near. The the. distal. the. the. cylindrical. distal. two. end.. main且agellum first segment. accessory. lash, and 21Segmented of main long as the distal one.. in shap?･ segmentsl. The. first pedun-. together,. basal. fur-. is. i 1/3. The segment second is damaged its distal porand. is 1/2 as long as which 月.agellum is much longer than ; the. and. segment. is very. the. third. the. basal. small,. about.
(20) S. GAM6. 30. i. ram. A-C. A. C D. -一■-. S. B F. G. b卓 9=I 0.1. E. mm. I---一. Ⅰ. /一. ,'Ⅹ. D一方. ′ヽヽ. T･'3 ノヽ. ∫ J. lr -^1. ∫. へへ■ ′ヽ. へ. A).. ′ヽ. レ…. 1. 1. 午. ､＼J Lil. 伊. ＼しし. a. `t;. 1. ヽ. l. ∫ I ∫. 工 ”. N. ○ 0.5. mm. エーO. Fig.. Hemilam♪rops(?). 10. tary. oostgites,. C: last view. E: mandibles. 1ipeds. peraeopod.. sp. abyssi 4.8mm.. length. about. two. abdominal. F:. maxillule.. J: third maxilliped. M-0:. third. (M). nov.,. A:. holotype 1ateral. telson with G: H-Ⅰ:first maxilla. K: basis offirst peraeopod. segments. to丘ftb. (0). female. young. B:. view.. peraeopods.. and. with. cepbalothorax,. uropods.. (H) and L: basal. D:. second portion. rudimendorsal antennule.. (I). maxil-. of second.
(21) Four. The. has. incisor The. 7. seatae. maxilla The丘rst and basis and. There. stout. long. as. and. a. as. mobilis. The 6. and. right. setae. on. the. the. than. The. The. margin. two. with distal. The. as. four and long as the. as. The. inner. the. is. propodus. is about. has. merus. 1 2/3 times. nearly. its length,. as. wide dactylus. together.. margln. 1/2. On. splneS. modetately. segments. end.. is. carpus. stout. The. carpus.. distal. margln･. 1/2. slender,. is about. the. near. I.. and. inner. the. on. ischium. splne. less than. the. as. 10, H. distal. remaining. hairs. plumose. outer. slightly. the. as. stout. outer. the. on. long. as. a. in Fig.. shown. (Fig･ 10, J) is somewhat. furnished. and. spine laterally,. are. surface･. with. merus,. 10, G.. long. and. γentral. on. spines. expanded. splneS. provided. the. two丘1aments.. maxillipeds. maxilliped 1 1/2 times as. small. more. 31. base.. the. at. lacinia. a. Trench. Japan. the. truncated. bears. one. in Fig.. show-n. second. on. and. three. is. has. of third. hairs. merus,. and. nearly three large. are. plumose. left. the. from. broadly. are. (Fig. 10, F). The. curved,. Crustaceans. process.. maxillule. The. Cumacean. (Fig･ 10, E). mandibles. mandible the. New. margln. somewhat is slightly. which. 1/2. as. long. as. the. as. propodus.. The丘rst basis. is almost. provided The are. The. missing･ basis. a. shorter The. than. except. for. type. as. than. the. 2. abyss'alis REYSS, is distinguished. maxilliped,. lateral. the. its distal. and. margln.. three. 3/4. about. and. segments. as. 1?ng. as. the. than The. are. long. as. that. as. of The. together. its. third;. fifth peraeopod. basis. is. (Fig. 10,. its basis. missing;. that. is. slightly. basal. have. peraeopods fourth. species. generic At available.. the. carapace. palrS. glance,. North. the. On. well are. inner. with. 3/4. as. The. margln.. long. as. about. as. spines.. developed. exopods,. whereas. rudimentary. here. by. of the species. only. dorsal. splneS. and. holo-. until adult male like MesolamProPs. very m. female. slngle. a. is reserved. is this species Atlantic, 4667-4862. bearlng. provided. is nearly. longest,. terminal. is described. position a. two. and. of endopod. is the. segment. bears. segment,. segment. 12 splneS. with. second. and. from. peduncle last abdominal. and. Of. is missing, and their distal portion is slightly shorter than the telson,. damaged. The. the. palrS. the. 3/4. distal segments. together･. the. as. of endopod,. by. is about. shorter. segments. furnished. and. 1978. much. The. definite. are. remainlng. is. margin.. of the third This new. the. the. are. long. as. segments;. two. 10, M). three. exopod･. inner. segment. exopods Remarks.. specimens. third. The. fourth.. of the. exopod,. (Fig.. than. more. its distal. twice. the. on. has. basal. of. on. and. in shape,. distal segments. the. left. the. less. and. peraeopod. little. and that. The丘rst the. is cylindrical. ur/?pods (Fig･ 10, C). exopod the. basis. (Fig･ 10, N). than. slightly.more 0) is damaged. 6 spines. hairs. plumose. and. that. as. (Fig･ 10, L) is damaged. of third. second, and fourth peraeopod. long. spines. distal segments.. without. long. as. peraeopod.. the. much. stout. peraeopod. second. The. 1 1/5 times. cylindrical, three. with. of the丘rst. (Fig･ 10, K) is damaged,. peraeopod. deep,. the. from. telson. it. which with. two.
(22) S. CAM(ラ. 32. pairs sea. of lateral bottom where. The. spines･ the. specimen. was. is derived. uabyssin. name. specific. from. the. deepI. collected･. 摘. 要. 1981年の夏期に,東京大学海洋研究所の｢白鳳丸+によって行れた日本海溝および付近海域の研 究航海(KH-81-4)で,釜石沖の日本海溝の水深5349-6416mの海底よリビーム･トロールによ Bathycuma Makrokylindrus. (Bodotriidae科), (?). lamProPs 1.. declinatum. (Diastylidae科)とHemi-. micracanthus. (Lampropidae科)についての報告であるo. abyssi. Bathycuma. (Coalescuma). B･. granulatum,. って採集された深海生のクマ額(甲殻類)の4新種･. sp･. granulatum. nov･:ビーム･トp-ルにより水深5349-5368mと6348-. 6416mの所から採集された｡完模式標本は体長18･1mmの抱卵した雌･別模式標本は体長15･7 JoNES, 1969 (インド洋のセイシェルとセイロン間の magma mmの亜成雄である｡本新種はB･. 2列の鋸歯をもつ背面中. 1040m深産)に酷似しているが,本種ほ甲背上に多数の小憩粒を有し, 央隆起線を欠くことによって明らかに区別されるo declinatum. 2. Bathycuma. nov･. sp･. :本新種ほ水深6348-6416mの海底より採集された完模式. 標本の体長3･2mmの雌と別模式標本の体長18･4mmの若雄によって記載される｡本種に最も GAM6,. rotunditectorum. 近縁と思われるものにB･. 1988. (琉球諸島の宮古島沖,水深1600m). があるが,本種は擬額角上に小林を有すること,第3顎脚の基節末端外側突出部がかろうじて長節 中程に達しているに過ぎないことなどによって明らかに区別されるo 3.. Mak,okylind,us. (Coalescuma). sp･. micracanthus. nov,. :本種は水深5349-5368mの所か. ら採集された体長11･9mmの成雌を完模式標本とし,体長8･9mmの君雄を別模式標本として 1962 (南西アフリカの水深4893m産), BÅcESCU･ (M･) lomakinae 記載される｡本種は一見M･ (M.) vitiasi BÅcESCU, 1962 (太平洋東部熱帯海域･ 1784m深)およびM･ M. (M.) americana 1958. LoMAKINA,. (千島･カムチャッカ海溝,. 2340m深)に似ているが,本種の第3･4自由胸節. は背面で互いに融合し■ているので明らかに種を異にしているo 4.. (?) abyssi. HemilamP,oPs. sp･. nov･:本新種は水深5349-5368の所より採集された体長 HemilamProPs属は背中に. 4.8mmの未発達な抱卵菓をもつ若雌を完模式標本として記載されるo. 触角を突出させるための欠刻を欠くが,この他近縁の属との区別に成雄の有する腹肢の数が重要視 REYSS, 1978 (北大西洋･ 4667-4862 m深産) abyssalis されている｡本種は一見MesolamProPs に似ているが,本新種の背甲背面に棟を有し･尾節に2対の側棟をもっことで明らか甘と区別され る｡しかか,本新種が何れの属に属するかほ,更に成雄の標本が得られるまで,本種の背甲に触角 を突出させる欠刻がないた軌一応HemilamProPs属に所属させることとし,確定的な属の決定 は保留せざるを得ない｡ RefererLCeS BÅcESCU,. M.,. 1962･. (crustacea Lamont. CALMAN,. :. National. J., 1975.. Esp占ces. Observatory. la. connaissance nonvelles. de New. du. genre. au recueillies Vole Abyssal York･. STEBBING. Makrokylindrus cours. des. Crustacea･. campagneS. 1･ Vema. du Res･. 209-223.. W.Tり1912･ states. DAY,. cumacea)･. GeologlCa1. Serリ1. a. Contribution. South. The. Museum. African. of the order Cumacea Proc･ U･S･ natl･ Mus°, 4l CulnaCea･ Part l･ Family. Crustacea. :. in the collection 6:03-676･ Bodotriidae,. of. the. Sub family. United. Vaun-.
(23) Four. New. Ann.. thompsoniinae. DAY,. J., 1980. Ann.. CAM(ラ,. South. S. Afr.. 1-3. GAM6,. du. GAM(ラ,. Zool.. Japon.. S., 1984. from. GAM6,. A. S., 1985. dentata Repts.. CAM(ラ,. CAM(ラ, GAMe･,. Repts.. N.S.,. 1969.. meters.. LoMAKINA,. 25ト255. Paralamprops. Part. des. Cumac6s. eaux. profondes. (Crustacea) corollifera sp. nov. Japan. 39: 2l-25.. Biogeogr.. Soc.. hystrix from. the. nov.. sp.. and. Trench. Japan. Leptosylis. quadri-. (Crustacea).. Sci.. ⅠⅠ,(32) : 1-10.. UnivりSeC. cumacean. Paraleucon?. crustaceans, sp.. of Japan.. 16: 147-192.. de. especes. cumaceans. spinescens. Four. (Leuconidae) 200. 80:. Malacostraca). 245-274;. (Makrokylindrus). Natl.. from. nov.. deep-sea. new. Yokohama. S., 1988b.. JoNES,. Diastylidae.. and. Japan. the. Trench.. sp. ultraabyssalis Bull. Biogeogr.. nov.. Soc.. 43-48.. S., 1988a. Sci.. quatre. Bull.. new. new. 33. Gynodiastylidae. (Crustacea,. 133-163;. sur. Trench.. two. Two. :. 15:. cumacean,. abyssal. Leptostylis?. Japan. 42. Families. ヽ. Yokobama. S., 1987. and. 4.. Cumacea. the. on. pr61iminaire Mag., Tokyo,. nov･,. Trench. Japan. the. 177-220.. Part. biol. Lab.,. new. sp･. Musリ66:. from. 1871292.. of the Japan Makrokylindrus. east. Afr.. 82:. mar.. Raport. Crustaceans. Cumacea.. Studies. Seto. S., 1971.. S.. African Mus.,. S., 1967-68. Publ.. Cumacean. A. Natl.. new. The. systematics. Galathea. Kumovie. N.a,. 1958.. 1978.. Cumac占s. qnd. Repリ10: raki. from. crustaceans. II,. (35) :. Bull.. Leucon. Biogeogr.. distribution. the. Japanese. waters.. 1-21.. crustacean,. Trench.. Japan. the. sec.. cumacean. abyssal. from. cumacean. Univ.,. Soc.. sp. stenorhynchus 43: 25-28.. nov.. Japan.. of. Cumacea. from. Morei. SSSR.. Opred.. depths. exceeding. Faune. SSSR.. 99-180.. (Cumacea). 1-301. REYSS,. D.;. Curastaceana.. 35. :. de. 1-21.. profondeur. de. l'Atlantique. Nord.. Famille. des. Lampropidae.. 66:.
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図
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