128 TESTACEOUS MOLLUSCA. 
rather convex, not thick, ashy white, anteriorly sub-truncated, with 
both transverse and delicate longitudinal striz, anterior side grooved, 
the interstices flattened: lunule lanceolate, narrow, its inner 
margin violet: within violet, the hinge with two of three teeth‘cleft. 
-——Nen Zealand. 
V. Pervuviana. 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. 1-95. . 235. 
V. Mutticostata. 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. 344,..4,35.—Panama. 
V. Srraminea. Con. Jour. A. N. S. Phil. 7. p. 250. t. 19. f. 
14. Suboval or suborbicular, convex, varied with yellowish and brown, 
with brown angular spots, with numerous crowded radiating strie, 
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. 13.— 
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. 
23. .32.—Chili. 
V. Atternata. Brod. 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. 14..12.—W. Columbia. 
V. Lenticuuaris. 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. 
250... 3t5-— 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. 3..3.—W. Columbia. Akin to Paphia. 
