エゾサンセウウオに寄生する鉤頭虫の１種に就て
3
0
0
全文
(2) Vol. 5, No. 2 Journal of Hokkaido Gakugei University Dec., 1954. On a Species of Acanthocephala Parasitic on Salamander, Hynobius retardatus Dunn (With 1 Text-figure) Hiromu KOKAYASI Biological Laboratory, Asahigawa College,. Hokkaido Gakugei University (Received January 31, 1954). ^ ft / S!A : 3- '/-9- --/ -bl? ^ ^-r^^-t SitiBgA® i. So far as the author is aware, there has been no records on the occurrence of Acanthocephala in the salamander, Hynobius retardatus Dunn. The author found eight specimens of Acanthocephala in the digestive tracts of Hynobius retardatus which were collected by the author and by Prof. T. Imamura in Maruyama Park in the suburbs of Sapporo City. The descriptions of male and female were given as follows.. Acanthocephalus lucidus Van Cleave, 1925 Syn. Acanthocephalus artatus Van Cleave, 1925 Male. Body of mature indivdual 4—5mm long and 0.7mm wide in middle portion. Proboscis 0.38mm long, 0.35mm wide and with crooked hooks in 13—14 longitudinal rows. Hooks in each row counted four in number, measuring 90u long in the longest and 60/u long in the shortest as shown in the text-figure. Proboscis sheath 0.5mm long and 0.38mm wide. Proboscis connected with body by a short neck. Lernniscus longer than proboscis sheath. Testis, oval in shape and 0.4 x 0.35mm in diameters, lies tandem in the middle of body. Several cement glands closely massed in a elliptical shape behind the posterior testis, Safftigen's pouch, 0.3mm long and 0.25mm wide in middle portion, lies behind cement glands. Female. Almost equal in body shape and organs as those of male except body size and genital organ. The measurements of body and organs are as follows. Body 8—15mm long and 0.8—1mm wide in about middle. Proboscis 0.45mm long and 0.38mm wide. Proboscis hooks measuring 98,u long in the longest and 75,^ long in the shortest. Proboscis sheath 0.6mm long and 0.43mm wide. The body cavity of mature female is filled with eggs which are measured 50—70^ long and 20—25/u wide. Locality. The specimens were found in the small intestine and rectum of Hynobius retardatus in every specimen collected in pools in Maruyama Park in the suburbs of Sapporo City in the following seasons : two males and three females in April 1948 by T. Imamura ; one male and two females in April 1951 by the author. It is noticeable — 15.
(3) Hiromu Kobayasi. that the parasite is not found in the. Acanthocephalus Uicidus Van Cleave a. Male body.. digestive tract of Hynobius retard-. b. Proboscis of male.. atus collected by the author during. April and May in 1951 and 1952 from Shunko-dai in the suburbs of Asahigawa City and Kamui-kotan in Kamikawa-gun. Remarks. The present specimens are wholly coincided in forms with A. lucidus which was described from Honshu. This is the first record of the present species in Hynobius retardatus and from Hokkaido.. Literature Harada, I. 1935. Zur Acanthocephalenfauna von Japan. Mem. Fac. Sci. a. Agtic., Taihoku Imp. Univ. vol. 14, pp. 7-23.. Yamaguti, S. 1939. Studies on the Helminth Fauna of Japan, Part 29. Acanthocephala II. Jap. J. Zool. vol. 8, pp. 317-351.. 16 —.
(4)
関連したドキュメント
In Section 13, we discuss flagged Schur polynomials, vexillary and dominant permutations, and give a simple formula for the polynomials D w , for 312-avoiding permutations.. In
Analogs of this theorem were proved by Roitberg for nonregular elliptic boundary- value problems and for general elliptic systems of differential equations, the mod- ified scale of
Then it follows immediately from a suitable version of “Hensel’s Lemma” [cf., e.g., the argument of [4], Lemma 2.1] that S may be obtained, as the notation suggests, as the m A
Definition An embeddable tiled surface is a tiled surface which is actually achieved as the graph of singular leaves of some embedded orientable surface with closed braid
Correspondingly, the limiting sequence of metric spaces has a surpris- ingly simple description as a collection of random real trees (given below) in which certain pairs of
[Mag3] , Painlev´ e-type differential equations for the recurrence coefficients of semi- classical orthogonal polynomials, J. Zaslavsky , Asymptotic expansions of ratios of
Failing to provide return transportation or pay for the cost of return transportation upon the end of employment, for an employee who was not a national of the country in which
“Indian Camp” has been generally sought in the author’s experience in the Greco- Turkish War: Nick Adams, the implied author and the semi-autobiographical pro- tagonist of the series
