1 0 0 0 主として狩獵鳥類に見らるゝ色彩の變異
1 0 0 0 ロンドン便り(時報)
1 0 0 0 ヒメネズミの個体群構成の季節的変化について
1 0 0 0 アメンボー類の觀察及水棲半翅類の水中生活の起原
1 0 0 0 爬蟲類の分類に就て(第二回)
- 著者
- Osborn Henry Fairfield 田中 茂穗
- 出版者
- 東京動物學會
- 雑誌
- 動物学雑誌
- 巻号頁・発行日
- vol.16, no.194, pp.462-466, 1904
1 0 0 0 爬蟲類の分類に就て(第1回)
- 著者
- Osborn Henry Fairfield 田中 茂穗
- 出版者
- 東京動物學會
- 雑誌
- 動物学雑誌
- 巻号頁・発行日
- vol.16, no.192, 1904
1 0 0 0 OA 重水によるウニ外腸胚の形成(発生)
1 0 0 0 佐々木氏の害蟲篇に就て
1 0 0 0 OA 朝鮮に於ける「シベリアノロジカ」
1 0 0 0 房州産ツチクヂラに就て
The Northern Porpoise Whales visit the coastal waters of Sirohama, Tiba Prefecture in the months extending from June to October every year and are caught in numbers by small whale-boats in the period above-mentioned. Males and females show no significant difference in length, but on the average the females grow rather larger than the males, the fact is quite different from what is known on the most toothed whales, where the males are far greater than the females. As is known on the most whalebone whales and sperm whales, this whale also leaves a pormanent records of all ovulations in the ovaries as a form of corpus luteum. The females reach the sexual maturity at the approximate length 10.0m.
1 0 0 0 寄生性後世動物に對する免疫性の獲得
1 0 0 0 OA 二型精子と營養卵の受精
1 0 0 0 本邦産ゲジムカデ屬の三種
1 0 0 0 OA ヌマガエル(Rana limnocharis)の間性
1 0 0 0 OA 高温飼育せる脳下垂体除去蛙蝌蚪の生殖腺(発生・実験形態)
1 0 0 0 OA 蛙の脳下垂体前葉と性分化との関係(発生学・実験形態学)
1 0 0 0 OA 再びヌマガエルに見出された卵巣睾丸について
Ovotestes found in a female intersex specimen of Rana limnocharis were reported. 1. In both gonads the ovarian tissue is pathological: all ova are degenerating, theca and connective tissue are hypertrophic and fibrous, and the presence of polygonal masses of pigment is remarkable. 2. Islets of testicular tissue are scattered on the surface of both gonads. A testicular nodule lies at the anterior end of the right gonad. Vasa efferentia are not present. The spermatogenesis is normal. 3. Oviducts are well-developed. Seminal vesicles are not present. Secondary male sexual characters such as nuptial color, thumb pads, protruded larynx and vocal sacs are clearly recognized.