著者

片桐 千明

出版者

社団法人日本動物学会

雑誌

動物学雑誌 (ISSN:00445118)

巻号頁・発行日

vol.76, no.3, pp.91-95, 1967-03-15

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In order to characterize the antigenic property of anuran egg-jellies in relation to their role in fertilization, rabbit antisera were produced against oviducal homogenates and egg-jellies of Bufo bufo formosus and Rana chensinensis. Agar-gel diffusion analyses in combination with egg-jelly and several tissue antigens showed that the Bufo jelly contains at least five separate antigenic components, of which three are specific to the jelly and the remaining two are shared with the tissue extracts of the homologous species (Figs. 1-4). Besides these five components, oviducal antigen produces another three precipitation bands, two of which are continuous with several kinds of tissues used, but not with jelly (Figs. 1 and 2). Reactions of anti-Bufo jelly sera with heterologous egg-jellies proved the absence of antigenic determinants reactive with either Hyla or four species of Rana (Fig. 5). On the other hand, egg-jelly of R. chensinensis contains six antigenic components. Of these, one or two components are shared with another species of Rana, but not with Bufo and Hyla (Fig. 6). From the discussion, with particular emphasis on the failure of correlation between the inter-specific relationship of egg-jelly antigens and the fertilizing capacity of sperm evoked by the heterologous egg-jellies (cf. Katagiri, 1996b; 1967), the conclusion was that the antigenic determinants of egg-jellies as identified in the present study are of minor importance in the fertilization process.

著者

鈴木 明郎 石塚 駿太

出版者

社団法人日本動物学会

雑誌

動物学雑誌 (ISSN:00445118)

巻号頁・発行日

vol.76, no.11, 1967-12-15

著者

藤巻 秀和 柳沢 富雄

出版者

社団法人日本動物学会

雑誌

動物学雑誌 (ISSN:00445118)

巻号頁・発行日

vol.86, no.4, 1977-12-25

著者

し い

出版者

社団法人日本動物学会

雑誌

動物学雑誌 (ISSN:00445118)

巻号頁・発行日

vol.1, no.5, 1889-03-15

著者

寺尾 新

出版者

社団法人日本動物学会

雑誌

動物学雑誌 (ISSN:00445118)

巻号頁・発行日

vol.33, no.392, pp.190-191, 1921-06-28

著者

森 八郎

出版者

社団法人日本動物学会

雑誌

動物学雑誌 (ISSN:00445118)

巻号頁・発行日

vol.61, no.3, 1952-04-15

著者

宮川 桃子 新井 康允 石 竜徳 菊山 栄

出版者

社団法人日本動物学会

雑誌

動物学雑誌 (ISSN:00445118)

巻号頁・発行日

vol.88, no.4, 1979-12-25

著者

川原 浩通

出版者

社団法人日本動物学会

雑誌

動物学雑誌 (ISSN:00445118)

巻号頁・発行日

vol.87, no.4, 1978-12-25

著者

青柳 兵司

出版者

日本動物学会

雑誌

動物学雑誌 (ISSN:00445118)

巻号頁・発行日

vol.61, no.8, pp.233-236, 1952-08

被引用文献数

2

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I inclucle here all the fishes belonging to the families, Gobiesocidae, Limnichthidae, Parapercidae, Brotulidae, Bothidae and Soleidae, which are hitherto known from the coral reefs of the Riukiu Islands. These fishes contain fifteen species, including one new species, four of which are the additional species to the ichthyofauna of both Japan and the Riu-kiu Islands, as fllows: Limnichtlhys fasciatus WAITE Parapercis cylindrica (BLOCH) Monothrix polylepis OGILBY Dinematichthys riukiucnsis n. sp. Dinematichthys rinkiuensis n. sp. Total length 101.7mm; standard length 90.3mm. Depth 4.1 in length; head 3.5. Snout 4.1 in head; eye 9.3; interorbital space 3.2; depth of caudal peduncle 6.3; maxillary 2. D. 77; A. 61; V. 1. Scales in longitudinal series 127. Body cylindrical anteriorly, strongly compressed posteriorly; snout short, obtuse; maxillary extending backward for beyond hind margin of eye; eye exceedingly small, 2.8 in interorbital space; opercle with one short spine; tongue somewhat pointed; dorsal and anal not connected with caudal; caudal 10.9 in length, rounded; ventral close together, 4.2 in length, inserted on throat just before base of pectoral, but not reaching to anus; small, well-inbricated, cycloid scales covering body entirely; predorsal scales extending forward to above hind margin of preopercle; cheek covered with minute cycloid scales posteriorly; opercle, infraorbital and snout naked; jaws, vomers and palatines with bands of minute spine-like teeth. Color in formalin pale brown generally; fins pale. This new species closely resembles GUENTHER'S D. mizolepis. It is, however, distinguishable from the latter in having smaller eyes, a smaller number of dorsal rays and a large number of scales in the longitudinal series. I obtained one specimen, 101.7mm in length, at Ishigaki Island and eight specimens, 51.4mm to 83mm in length, at Okinawa-Honto. The above description was based upon the specimen collected at Ishigaki Island.

著者

江原 有信 佐藤 利夫

出版者

日本動物学会

雑誌

動物学雑誌 (ISSN:00445118)

巻号頁・発行日

vol.80, no.10, pp.358-363, 1971-10

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Square pulse (17.5 V, 50 msec) was applied to oyster ventricle which had been isolated and mounted on a separation box. Myocardial activity was intracellularly recorded by means of microelectrode filled with 3 M KCl. Electric stimulation of threshold strength affected the beat interval as follows: Length of beat interval was changed by the simulation applied even during repolarization phase which corresponded to so-called refractory period. Depolarizing current did not always produce an extra action potential, and sometimes delayed the production of succeeding spontaneous action potential according to stimulating moment (Fig. 1). Hyperpolarizing current did not always elongate the interval, and often evoked an extra action potential as the result of rebound excitation th shorten the interval. Compensatory pause could not be found in these experiments. The change in length of the beat interval caused by the stimulation applied before the critical point (Fig. 2) had an opposite relation against that applied after it. The change in the beat interval caused by depolarizing current differed markedly from that produced by hyperpolarizing current. The effect of depolarizing stimulation was essentially similar to that of small potential (Ebara, 1964b) which conceivably had an important role in rhythm formation of the whole ventricle.

著者

長谷川 和

出版者

日本動物学会

雑誌

動物学雑誌 (ISSN:00445118)

巻号頁・発行日

vol.62, no.6, pp.206-211, 1953-06

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By heat-treatment (for 5-40 minutes at 25-34℃) of fertilized eggs of the toads, Bufo vulgaris formosus (Boulenger), four double-headed tadpoles, which lived more than 30 days, were obtained. Generally in the head portions of these animals the organs were formed doubly, while in the tail portions singly; and intermediate forms of the two portions were recognized in the trunk portions. It may be considered that these animals were produced by the division of the direction of primary invagination.

著者

森 主一 高田 亘啓

出版者

社団法人日本動物学会

雑誌

動物学雑誌 (ISSN:00445118)

巻号頁・発行日

vol.66, no.2, 1957-03-15

著者

高島 春雄

出版者

社団法人日本動物学会

雑誌

動物学雑誌 (ISSN:00445118)

巻号頁・発行日

vol.56, no.1, pp.74-75, 1944-03-15

著者

加藤 正世

出版者

社団法人日本動物学会

雑誌

動物学雑誌 (ISSN:00445118)

巻号頁・発行日

vol.42, no.502, pp.281-306, 1930-08-15

著者

手代木 渉 志田 孝夫

出版者

日本動物学会

雑誌

動物学雑誌 (ISSN:00445118)

巻号頁・発行日

vol.77, no.11, pp.350-358, 1968-11

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It is well known that in the amphibian tail the main axis of regeneration blastema is at the right angle with the cut-surface (Barfurth, 1923). The same view has been held by many investigators who worked with various animals. For supporting this view, the cellular materials concerned in regeneration must be produced uniformly from the cut-surface, as stated by E. Korschelt (1927) and Yo. K. Okada (1950). However, this did not hold in planarians, since the rate of production of new tissue at the cut-surfaces differs along the longitudinal or the lateral axes of the body. The rate of regeneration in the amphibian tail was exactly the same to that of planarians. When the planarian or amphibian tail was sectioned obliquely, the axis of blastema was not always at the right angle with the cut-surface. It has been conclusively shown in the planarian and amphibian tail that as the acute angle between cut-surface and the main axis of the body (section angle) approaches the right angle, the acute angle of blastema-axis to the main axis of the body (regeneration angle) falls to zero, while, the regeneration angle becomes at the right angle as the section angle approaches zero. This can be mainly explained by differences in the rate of regeneration of new tissue along the cut-surface of the oblique section.

著者

南部 実

出版者

日本動物学会

雑誌

動物学雑誌 (ISSN:00445118)

巻号頁・発行日

vol.59, no.4, pp.15-16, 1950-04

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Different doses (50-200 i.n.) of the commercial estrogen (ovahormone Takeda) were added to lg of pulp of liver of the newt, Triturus pyrrhogaster. After allowing to stand for 24 hours at room temperature, the mixture was extracted for 60 hours with acetone and then for 50 hours with alcohol in a Soxhlet. The extracts, combined after evaporation of the solvents, were taken in 0.8-1 cc of olive oil or whale oil and injected into spayed female rats. It was found that when 80 i.u. or more of the estrogen had been added to the liver pulp the doses sufficient to induce estrus in the rats sometimes escaped inactivation but when 60 i.u. or less had been added effective doses never remained. In the control experiments with lg of stomach tissue plus 50 i.u. of the estrogen the extracts were always estrogenic.

著者

野崎 真澄 堤 俊夫 小林 英司 竹井 祥郎 市川 友行 常木 和日子 宮川 和子 上村 晴子 辰己 佳次

出版者

日本動物学会

雑誌

動物学雑誌 (ISSN:00445118)

巻号頁・発行日

vol.85, no.2, pp.p156-168, 1976-06

被引用文献数

3

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The spawning habit of the puffer, Fugu niphobles (Jordan et Snyder), was observal at Arai Beach and Aburatsubo Inlet from late May to early August in 1975. One spawning ground was found at Arai Beac (A in Fig.1), and four at Aburatsubo Inlet (B-E in Fig.1). The puffer laid eggs on any spawning bed with sandy (A), pebbly (B, C and D) or rocky shores (E). They spawned at beaches facing any direction (Fig.1). The spawning season extended from May 25 to July 28. Spawning ran 5-7 days at Arai Beach, and 2-6 days at Aburatsubo Inlet following each full or new moon. A large school of puffers, consisting of about 1000, approached each spawning bed with the rising tide. Spawning took place repeatedly in small groups of 10-60 puffers only in the evening high tide. Each spawning observed at Arai Beach started 110±6 minutes and finished 39±8 minutes before the full tide, except for the first day. Thus, most of the eggs were washed away from the beach by waves. The number of spawnings by small groups ws very small on the first day and became highest on the 3rd or 4th day. There was no difference in total length between males and females found at the spawning beds. The number of females was notably less than males. A large school of puffers approached the spawning beds with the rising tide in the morning, but spawning was not observed.

著者

白石 哲

出版者

社団法人日本動物学会

雑誌

動物学雑誌 (ISSN:00445118)

巻号頁・発行日

vol.84, no.4, 1975-12-25

著者

白石 哲

出版者

社団法人日本動物学会

雑誌

動物学雑誌 (ISSN:00445118)

巻号頁・発行日

vol.79, no.11, pp.414-415, 1970-12-15

著者

波江 元吉

出版者

社団法人日本動物学会

雑誌

動物学雑誌 (ISSN:00445118)

巻号頁・発行日

vol.1, no.7, pp.212-213, 1889-05-15

被引用文献数

2