300 TESTACEOUS JJJpLLUSCA. 



small, sunken ; inside wholly whitish ; pallial sinus very short. 

 2...2£. Veragua 



Venus compta (t. 16, f. 18), Sow. Z. P. 1835, p. 43.— Sow. Th. 2, 

 p. 710, t. 154,/. 32, 3, 4. — Chione c. Desh Verier, p. 133. Resembling 

 V. cancellata, and with difficulty separated from it. It is, however, 

 flatter, more spread at the sides, where the radiating striae are 

 divergent, and the concentric ribs are less reflected and more laminar. 

 1J. Peru. The specimen delineated was immature. The lamelloi are 

 much more crowded ventrally in adult examples. 



Venus subnodulosa (t. 16, f. 19), Hani. Z. P. 1844, p. 160.— 

 Chione s. Desh. Verier, p. 143. Ovate, thickish, subequilateral, 

 moderately convex, with crowded concentric ribs that are blunt in the 

 middle and in front, but elevated into short lamellae behind, and are 

 everywhere rendered nodulous by radiating sulci ; ventral edge crenu- 

 lated, convex or subarcuated ; both dorsal edges somewhat sloping ; 

 the anterior slope and the oblong- cordate lunule prominent ; ligament 

 sunken, and very narrow ; inside stained with purple, f. Philip- 

 pines. Whitish variegated with livid brown, or brownish fulvous with 

 the beaks whitish. 



Venus Chemnitzh (t. 16, f. 20), Hani. Z. P. 1844,^. 160.— Sow. 

 Th. 2, p. 702, t. 152, /. 6.— Desh. Vener. p. 108. Rhombic-heart- 

 shaped, thick, ventricose, very inequilateral, whitish, somewdiat radi- 

 atingly spotted and streaked with brown, with very numerous short 

 and everywhere curly concentric lamellae, and very crowded narrow 

 radiating costellae ; ventral edge convex, crenulated ; front dorsal 

 edge straightish, not at all sloping; anterior side angulated above ; 

 hinder side short, attenuated, rounded ; lunule brown, cordate ; liga- 

 ment sunken, narrow ; inside whitish. If . . . 2^. Philippines. 

 Teeth ' as in V. puerpera. A slight tinge of orange beneath the 

 umbones . 



Venus lyra (t. 16, f. 21), Hani. Z. P. 1844, p. 161.— Sow. Th. 2, 

 t. 161, /. 192. — Desh. Vener. p. 104. Rounded-cordate, ventricose, 

 very inequilateral, marked with brown angular lines and spots on a 

 whitish ground ; closely encircled by smooth riblets, which are mem- 

 branaceous near the extremities, and subimbricated in the middle, the 

 intervals devoid of sculpture ; ventral edge arcuated, crenated within ; 

 lunule deep brown, heart-shaped ; anterior slope excavated ; inside 

 whitish. If... If-. Guinea. 



Venus decipiens (t. 16, f. 22), Hani. Z. P. 1844, p. 162.— 

 Chione d. Desh. Vener. p. 128. I have reason to believe that this 

 is only the young of V . fasciata (the V. Brogniarti of PayraudeauJ. 



Venus lacerata (t. 16, f. 23), Hani. Z. P. 1844, p. 161. — Sow. 

 Th. 2, p. 704, t. 152,/. 3, 4. — Desh. Vener. p. 105. Allied to 

 V. puerpera, but less ventricose, and with its ventral and anterior 



