362 testaceous m6llusca. 



forked, and always much narrower (if not obsolete) in front ; ventral 

 edge arcuated, finely crenulated ; lunule impressed, cordate ; front 

 dorsal area flattened, smoothish ; beaks acute, much inclined and in- 

 curved; inside whitish, stained in front with livid purple. l^...li- 

 Mediterranean. 



** Ventral edge entire. 



Venus Bruguieei (t. 15, f. 59), Hani. Z. P. 1845, p. 21. — 

 (E. t. 283, /. 4).— Tapes B. Sow. Th. 2, t. 151, /. 130, l.—Desh. 

 Vener. p. 183. Oblong, somewhat glossy, convex, very inequilateral, 

 either pale brown with a few white rays, or ash-brown with distant 

 interrupted narrow darker rays ; radiated with costellae in front, and 

 elsewhere with sulci, of which the central ones are subimbricated, the 

 sculpture laterally subdecussated ; ventral and front dorsal edges 

 scarcely convex, the latter almost horizontal ; hinder dorsal edge 

 somewhat convex and sloping; anterior extremity bluntly and 

 obliquely biangulated ; beaks adorned in front with a short livid ray ; 

 lunule nearly obsolete ; hinge-margin purple. If. Ceylon. Teeth 

 narrow and parallel. 



Venus (Saxidomus) Nuttallii (t. 16, f. 16). — S. N. Conr. J. 

 Philad. 7, p. 249, t. 19, /. 12. — Desk. Verier, p. 188? Suboval, 

 truncated and gaping in front, white, with brown spots and stripes 

 about the umbo and the ligamental margin ; disk rough with con- 

 centric striae which are elevated on the anterior slope ; hinge with 

 from 4 to 5 compressed primary teeth in one valve, and 4 in the 

 other; pallial sinus profound. 2. California. 



Venus impressa (t. 16, f. 27), Anton, Wiegm. Arc. 1837. — 

 V. flexuosa, Sow. (not lAn.) Th. 2, p. 716, t. 156, /. 85, 6. — 

 Anomolocardia i. Desh. Vener. p. 118. Peaked-subcordate, solid, 

 moderately inequilateral, ventricose, squalid white, with vestiges of 

 three ashy or brownish rays, the greater portion of the surface closely 

 and bluntly ridged in a concentric direction, the shallow intervals 

 smooth posteriorly; the anterior third with crowded decussated 

 radiating costellae ; ventral edge entire, arcuated and rising behind ; 

 ligamental edge much sloping, its area impressed, and usually livid ; 

 umbones prominent ; lunule very large, retuse ; inside wholly white. 

 li...li. E. Indies. 



Venus aspersa (t. 16, f. 34), Ch. 7, /, 438. — Lam. in part. — 

 E. t. 281,/. 4.— Tapes a. Sow. Th. 2, p. 684, t. 147,/. 52.— Desh. 

 Vener. p. 164. Subovate-oblong, inequilateral, compressed, not solid, 

 shining, fawn-coloured or pale chestnut, subradiated with large 

 cloudy spots and small angular marks of blackish brown ; with con- 

 centric grooves, which are dense posteriorly and more remote ante- 

 riorly, so that the intervals become depressed lyrse along the umbonal 



