著者

団 勝磨

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

内田 亨

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, pp.341-344, 1979-12-25

著者

団 勝磨

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

団 勝磨

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.80, no.11, 1971-12-15

著者

堀 克重

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.59, no.2, 1950-03-15

著者

茅野,春雄

出版者

東京動物學會

雑誌

動物学雑誌

巻号頁・発行日

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

著者

馬場,菊太郎

出版者

東京動物學會

雑誌

動物学雑誌

巻号頁・発行日

vol.61, no.10, 1952-10-15

---

Paraplysia geographica scripta (BERGH)(Text-figs. 1-2). A conspicuous animal in that the rhinophores are conic, colse together and standing far back between the anterior ends of the parapodial lobes. Length of body about 10cm. Cephalic tentacles large, auriculate, widely separated. Parapodia broad and united behind; mantle with a produced siphon behind; mantle-aperture much reduced to a microscopic pore. No purple gland. Pores of hypobranchial gland diffuse. Common genital orifice just in front of the mantle-shield. Foot very large and without a posterior sucking disk. A shell as in Aplysias. General body-colour a yellowish green (olive), but the whole surface of the body except the sole is covered with a fine and extremely complicated network of black. Jaw-plates formed of fibrous rods as usual. Radula formula 50×23-25.1.23-25. Central tooth trapezoid, with 3-4 denticles on either side of the median cusp. Lateral teeth denticulated on both sides. Penis unarmed. Loc.: Hayama, Sagami Bay, by a fishing net from the bottom (Ang. 1949, 2 sps.). Dist.: Amboina, East Indies. According to ENGEL (1936), all the forms of Paraplysia hitherto described must be united as a single species, geographica, which may conveniently be divided into a number of local subspecies. I think the specimens in hand most closely agree with the East Indian subspecies scripta in the possession of the exquisite pencil-drawings on all the surface of the body.

著者

阿部,余四男

出版者

東京動物學會

雑誌

動物学雑誌

巻号頁・発行日

vol.48(8-10), 1936-10-15

---

Mr.POCOCK attempted (P.Z.S. London, 1935, Part III) to include the Corean wolf together with all the other forms of wolves in Chinese Tartary, Thian Shan, Kashmir, Tibet, Mongolia and China proper in Canis lupus laniger HODGSON. And as the basis of including the Corean wolf in laniger, he says that the skull size and pelage colour of it in my despription may fall into the individual variations among laniger. I clearly stated that Canis lupus coreanus ABE has as large a skull as laniger, and that in the pelage colour there in not a little variation, so that I do not take such points as diagnosis; but that it is recognized by its slenderer snout in comparison with laniger or any other middle sized or large sized wolves. So Mr.POCOCK's protest is wide of the mark. I measured my materials anew and two more skulls in Mr.SAITO's collection (both formerly kept in Uyeno Zoological Garden alive) after POCOCK's method, and I find more clearly that all our materials agree in the slenderer snout in comparison with all the laniger specimens which he showed: Width outside pm^2 being 35, 39, 40, 42 in the former and 47, 481/2, 551/2, in the latter, palate between pm^2 being 29, 29, 28, 301/2 in the former and 33, 351/2, 37 in the latter, palate between pm^1 being 261/3, 28, 28, 29 in the former and 34, 32, 31 in the latter, etc., as the table shows. Thus the gap between C.l.laniger and C.l.coreanus far exceeds the gap between his so called C.l.rex and N.E.Siberian wolf. Sometimes north-eastern larger wolves may intrude into Corea over the frozen River Yalou, but such larger stragglers can neither be laniger nor nullify the existence of the peninsular form C.l.coreanus.

著者

黒田,亮

出版者

東京動物學會

雑誌

動物学雑誌

巻号頁・発行日

vol.40, no.482, 1928-12-15

著者

神田,義登

出版者

東京動物學會

雑誌

動物学雑誌

巻号頁・発行日

vol.40, no.482, 1928-12-15

著者

宮尾,嶽雄

出版者

東京動物學會

雑誌

動物学雑誌

巻号頁・発行日

vol.75, no.8, 1966-08-15

---

A supplemental tubercle is often seen on the mesiobuccal part of the lamina on the lower molar of Rattus. We call this the mesiobuccal tubercle to distinguish it from the others. The main aim of this paper is to report on regional differences in its frequency of appearance on the mesiobuccal tubercle and to report on various supplemental tubercles on the lower molar of Rattus norvegicus. I. Regional difference: We have examined the regional difference of frequency of the appearance of the mesiobuccal tubercle in Rattus norvegicus, which were collected in the following four districts; Matsumoto City, Shiga Heights in Nagano Prefecture, Nagoya City and Fukuoka City. The most noticeable difference is found on the second lamina of the second molar. A quite significant difference is that the rate of frequency appearance on the right molar in Nagoya is 66.7%, which is far lower than the others; in Shiga Heights it is 91.7%, in Matsumoto City 95.1%, and in Fukuoka City 92.6%. On the second lamina of the third molar we recognize a regional difference, and especially the rate on the right molar in Nagoya, as well as that of the second lamina of the second molar, is much lower than the rate in the other three districts. II. Various supplemental tubercles which appear on the lower molar are as follows: 1) The supplemental tubercles found on the lingual surface between the first and the second lamina of the second molar. 2) The tubercle found on the distal surface of second lamina of the third molar. This tubercle is homologous to the posterior heel of the first and second molar and seems to be its remnant. 3) The tubercle found on the distobuccal of the first lamina of the first molar.

著者

酒井,琢郎

出版者

東京動物學會

雑誌

動物学雑誌

巻号頁・発行日

vol.78(1・2), 1969-02-15

著者

宮尾,嶽雄

出版者

東京動物學會

雑誌

動物学雑誌

巻号頁・発行日

vol.72, no.5, 1963-05-15

---

From April, 1962 to March, 1963, the authors collected small mammals (Rodentia and Insectivora) monthly by snap traps in the subalpine forest zone (Tsugadiversiforia-Abies Mariesii forest zone, alt. 1,300-2,400m) on Mt. Yatsugatake in Honshu. Total number of captured mice and voles was 961 with the following proportional breakdown: Rattus rattus 1, Apodemus speciosus 14, Apodemus argenteus 308, Clethrionomys andersoni 616, Anteliomys smithii 20, Microtus montebelli 2. The number of moles and shrews taken was 231 with the following breakdown: Euroscaptor mizura 1, Urotrichus talpoides hondonis 18, Dymecodon pilirostris 151, and Sorex shinto shinto 61. Rattus rattus and Microtus montebelli were found in this area. Apodemus speciosus and Urotrichus talpoides hondonis were only found in the lower part of this grassy area. On the other hand, Apodemus argenteus, Clethrionomys andersoni, Anteliomys smithii, Dymecodon pilirostris, Sorex shinto shinto were widely found in this forest zone. It was noted that the largest number of Apodemus argenteus appeared in spring, but the peak of Clethrionomys andersoni was seen from autumn to winter (Fig. 2). The average embryo sizes of each species were as follows: Apodemus speciosus 5.7, Apodemus argenteus 3.9, Clethrionomys andersoni 3.3, Anteliomys smithii 3.5, Microtus montebelli 3.0, Urotrichus talpoides hondonis 4.5, Dymecodon pilirostris 3.5, Sorex shinto shinto 3.7. The highest capture rate (number of captured small mammals/no. of set traps) occurred in October and the lowest rate in February. They reflect the effect of the population density and the snow fall, etc.

著者

青木,文一郎

出版者

東京動物學會

雑誌

動物学雑誌

巻号頁・発行日

vol.51, no.6, 1939-06-15

著者

青木,文一郎

出版者

東京動物學會

雑誌

動物学雑誌

巻号頁・発行日

vol.23, no.268, 1911-02-15

著者

青木,文一郎

出版者

東京動物學會

雑誌

動物学雑誌

巻号頁・発行日

vol.23, no.272, 1911-06-15

著者

朝日,稔

出版者

東京動物學會

雑誌

動物学雑誌

巻号頁・発行日

vol.89, no.1, 1980-03-25

---

Deficiencies and surplus eruptions in the teeth of raccoon-dogs were examined using 340 specimens collected mainly from three localities in western Japan. Abnormalities in the dentition occurred in 26% of 308 perfect skulls. On the upper jaw, 9 examples of pm-1 deficiencies on both sides occurred, 8 on left side alone and 4 on right side alone among 317 specimens. There were no significant differences between the sexes, but differences did exist among localities. There were i-1, i-2, i-3, pm-2 and m-2 deficiencies, and i-surplus eruptions in some specimens. On the lower jaw, m-3 deficiencies occurred more frequently. Incidences of deficiencies on both sides, left and right side alone were 19, 19 and 15 respectively among 314 specimens. No significant difference was found between sexes and among localities. Other deficiencies were observed on i, pm-1, pm-2, pm-3 and pm-4. One surplus eruption occurred between c and pm-1. In one specimen, pm-4 duplications in the buccolingual direction were observed on both sides.

著者

渡瀬 庄三郎

出版者

東京動物學會

雑誌

動物学雑誌

巻号頁・発行日

vol.13, no.149, pp.85-88, 1901

著者

渡瀬 庄三郎

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.21, no.249, pp.279-284, 1909-07-15

著者

渡瀬 庄三郎

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.26, no.307, pp.251-252, 1914-05-15