摘要
中国科学院海洋研究所海洋考察船“科学一号”在东海进行调查时,于1981年8月3日在冲绳海槽的东坡,日本宫古岛附近,水深900m处采到了腹足纲卵螺科(Oocorysidae)的标本。经作者研究之后,确认是一个新种,订名为东海卵螺Oocorys donghaiensis sp. nov.。
In the present paper a new species of Oocorysidae (Gastropoda)-Oocorys donghaien-sis sp. nov., collected by the Institute Oceanology, Academia Sinica from Bathyal deep of the East China Sea, is described.Oocorys donghaiensis sp. nov. Fig. 1Shell small size in the genus, globorely ovoid in outline rather solid and thick, consisting 2 protoconch and 3 teleoconch; protoconch eroded, teleoconch whorls convex, with a moderately deep, inpressed suture; body whorl large, occupying 77% of total shell height; surface 昪onvered with a yellowish periostracum; sculpture of teleoconch ornamented with spiral cords, separated by much wider and concave interspaces, counting about 5 in number on the penultimate whorl and about 17 on the body whorl; spiral cords crossed by radial ribs, forming slightly convex nodules; spiral cords crowded in the upper rows but tend to become obscure in the lower rows; aperture large and almost oval, with a short siphonal notch in front.Operculum horny and oval in outline, nucleus near the anterior end.Measurement: Shell height 21.5mm, width 15.5mm.Central tooth 170 μm in width, with a large cusp and 6 smaller sharp-pointed and curved lateral cusps on each side.Holotype locality 128°10'E, 27°35'N, depth 900 m, collected August 3, 1981.The Holotype (V569B-8) is deposited in the Institute of Oceanology, Academia Sinica.Type specimen is not fully grown, it's outer lip is not thickened. Oocorys caribbaea Clench & Aguago, 1939, is closely related to this new species in shape, but has 20 rather stout spiral cords on the body whorl.
出处
《海洋与湖沼》
CAS
CSCD
北大核心
1989年第6期514-516,共3页
Oceanologia Et Limnologia Sinica
