摘要
在1985年进行长江口调查时,采到了数个双壳类标本,经鉴定认为系帮斗蛤科一新种——中华帮斗蛤Pandora(Frenamya)sinica sp. nov.。新种左壳前主齿和中主齿为一横向的隔板相连结。右壳中主齿发达,后主齿短小。模式标本保存于中国科学院海洋研究所内。
Four species of Pandorid, viz. Pandoro (Frenamya) elongata Capenter, P. (Pandorella) wardiana A. Adams, P. (Pandorella) otukai Habe, and P. (Pandorella)pseudobilirata Nomura et Hatai, had been reported from Chinese waters by Carpenter and the present author Pandora (Frenamya) sinica sp. nov., described in this paper is the fifth species of this family in the China Seas.Description of new speciesPandora (Frenamya) sinica sp. nov. (Fig. la)Shell small, elongate, thin and fragile, inequilateral, inequivalve; umbo smooth, situated at about 1/4 of the total length from the anterior margin; anterior margin; narrowly rounded, anterior dorsal margin short and slightly convex, posterior dorsal margin long and nearly straight, posterior margin constricted and truncated; left waive slightly convex, right value flat in dorsdal region, concave ventrally; two ridges running from the umbo to the posterior ventral margin on the left valve; one ridge on the right; hinge plate with an interal resilium, but without lithodesma, left valve with an anterior cardinal and a central cardinal tooth, united by transverse plate, forming a cavity, posterior cardinal tooth long, extended along the posterior dorsal margin; right valve with an obsolete anterior cardinal tooth, a long central cardinal tooth, and a short posterior cardinal tooth, a long pit along the posterior dorsal margin, corresponding to the posterior cardinal tooth of the left valve. Adductor scars circular, anterior adductor scar is beneath the cavity of anterior and central cardinal tooth, posterior one situated at 1/3 the length from the posterior end.Holotype (30949) locality: 122°40'E,31°15'N, 9 Aug. 1985, 43m; length 12.0mm, height 5.2mm.Paratype (30950) locality: 122°45'E, 30°45'N, 21 Nov, 1985, 27m; length 11.5mm, height 5.2mm.The present new species is allied to Pandora (Frenamya) elongata Capenter 1864, but the later can be distinguished by having a concave postero-dorsal margin and a V-shaped transverse plate uniting the anterior and central cardinal tooth in the left valve (Fig. 2).Distribution: From the Changjiang River mouth to Winzhou (26°30'-31°45'N), muddy bottom of 11-43m depth.
出处
《海洋与湖沼》
CAS
CSCD
北大核心
1992年第3期285-287,共3页
Oceanologia Et Limnologia Sinica
