128 TESTACEOUS MOLLUSCA. 



rather convex, not thick, ashy white, anteriorly suh-truncated, with 

 both transverse and delicate longitudinal striae, anterior side grooved, 

 the interstices flattened : lunule lanceolate, narrow, its inner 

 margin violet: within violet, the hinge with two of three teeth'cleft. 

 — New Zealand. 



V. Peruviana. Sow. Z. P. 1835. Obovate, thick, concentri- 

 cally ribbed ; the ribs thickish, sublamellar, posteriorly reflected, 

 centrally reflected, articulated with fulvous, anteriorly deflected and 

 thinner; anterior side doubly as long as the posterior, margins 

 depressed and flattened ; ventral edge rounded : smooth within. — 



Peru. 1 T V.2 T V 



V. Multicostata. Sow. Z. P. 1835. Large, elliptic, ventricose, 

 thick, with numerous concentric ribs, which are thick, reflected, pos- 

 teriorly undulated, centrally crenated, anteriorly alternately inter- 

 rupted, rather irregular and rather undulated ; pale fawn, with 

 darker spots forming rays : dorsal edge nearly straight, ventral 

 rounded: lunule heart-shaped. ^tw'^to' — Panama. 



V. Straminea. Con. Jour. A. N. S. Phil. 7. p. 250. t. 19./. 

 14. Suboval or suborbicular, convex, varied with yellowish and brown, 

 with brown angular spots, with numerous crowded radiating strise, 

 and finer concentric lines, which are most distinct posteriorly ; ante- 

 rior extremity direct, ligamental margin nearly parallel with the 

 base: teeth compressed, sinus of the palleal scar profound. \\. — 

 California. 



V. Opaca. Sow. Z. P. 1835. Oblong, squarish, rather turgid, 

 smooth, opaque, whitish, slightly tinged with purple ; posterior side 

 the shorter, rounded, concentrically rugulose ; anterior side rather 

 rounded, sub-angulated above and below : ligament very large. 

 2\. .3%.— Chili. 



V. Alternata. Prod. Z. P. 1835. Rather rounded trian- 

 gular, with numerous acute raised concentric lines, white with 

 chesnut rays ; dorsal or anterior area and the lunule violet chesnut; 

 inside white, indistinctly clouded with violet chesnut towards the 

 umbones. 1^-. . 1J-. — JV. Columbia. 



V. Lenticularis. Sow. Z. P. 1835. Lenticular, subtrapeziform, 

 thick, opaque, pale, smooth, with concentric lines, which are dis- 

 tinct at the side, obsolete in the middle, and somewhat raised near 

 the umbo ; dorsal edge roundish, anteriorly subangulated ; lunule 

 elongated, heart-shaped, small and impressed : inside whitish. 

 2-^. .3 T V— Chili. 



V. Cypria. Z. P. 1835. Oblong subtriangular, white with 

 brown rays, and thick concentric obtuse ridges which anteriorly are 

 finer and more closely set ; dorsal line straightish and sloping : an- 

 terior area broad and dark : lunule conspicuous, brown, and heart- 

 shaped. J. . f. — W. Columbia. Akin to Paphia. 



