ウラウズカニモリ属の分類学上の位置
スポンサーリンク
概要
- 論文の詳細を見る
The genus Orectospira Dall 1925, the type species of which is Basilissa babelica Dall, is classified in the rhipidoglossate family Trochidae on the shell characters until to-day, but now it may be transfered to the taenioglossate family Turritellidae by the radular features together with five species, namely, Echimella tectiformis Watson 1880, Turritella wadana Yokoyama 1890, Cerithium excelsum Yokoyama 1928, Cerithiopsis ? sikoensis Yokoyama 1928 and Basilissa babelica Dall 1907. Radula formula of this genus is of taenioglossate type. Central tooth trapezoidal in shape, its base is broader than the distal margin, with a process at the basal corner on each side. The cusps consist of a large median and five lateral ones which reduce outwardly in size. The innermost cusp of the lateral tooth forms a strongly projecting spur and the other 5-6 cusps reduce in size outwardly. Inner and outer marginals are long and attenuate towards the tips with no denticules.
- 社団法人日本動物学会の論文
- 1955-08-15
著者
関連論文
- 日本産カワニナSemisulcospira属の分類系統(分類・形態・生態)
- メジナ幼魚の群れ生活
- 綜合討論(形態学・分類学・原生動物学)
- 内湾に於ける貝類遺骸の堆積
- 北海道の貝類(生理・発生・実験形態・生化学・分類・生態)
- タマキビ類の浮游性卵嚢について(分類学・形態学・原生動物学)
- 日本産陸産貝類の解剖的研究(6) : キセルモドキ科の種群
- 朝鮮産蝸牛類4種について
- 日本産陸産貝類の解剖的研究(5) : パンダナマイマイとタメトモマイマイ
- 沖縄及び屋久島の蝸牛類(形態学・分類学・原生動物学)
- 二枚貝ヌマコダキガイについて
- ウラウズカニモリ属の分類学上の位置
- Studies on the Yosanaikai, its Oceanographic Conditions and their Improvement for Fisheries Purposes