114 TESTACEOUS MOLLUSCA. 
the ventral edge, and crisply plaited much raised concentric frill- 
like lamellee ; very pale chesnut. 12..13.—Panama. 
V. Catirorniensis. Brod. Z. P. 1835. Globose, thick, 
whitish, with numerous concentric thickish and laterally subcre- 
nulated ridges, cancellated by numerous ribs towards the beaks but 
approximate ventrally, anterior area sunken and large ; lunule large 
and tumid ; inside white, the anterior scars stained with violet. 
2 15+. 24%,.— California. 
Section B.—WNo lamellar strie. 
V. Granuvata.* Gmel. 3277.—D. p. 171.-—W. t. 7. f. 29.— 
Lam. 14.—Turt. B. p. 145.—Ch. f. 313.—List. t. 338. f. 175. 
—E. t. 272. f. 3.—Don. t. 83.—V. Vioracea. Gimel. 3288. 
Roundish heart-shaped, with longitudinal grooves decussated by 
raised transverse striee, whitish with spotted rays and streaks of 
purplish brown and the anterior slope lettered ; lunule heart-shaped 
and usually darker: spotted with violet within, especially on the 
anterior side.—Variety—Yellowish and spotted.— Diam. 3.—W. 
Indies.— Exterior not unlike the common cockle. 
V. Pecrorina. Lam. 15.—Del. t. 10. f. 11.—V. Exeeans. 
W. S. t. 2.f. 3. Ovate, heart-shaped, with longitudinal radiating 
narrow ribs decussated by transverse strize, white or pale fulvous 
with brown letter-like markings on the anterior slope only ; lunule 
large heart-shaped and not coloured : white and not spotted within. 
12.—America? 
V. Marica. Zin. 1130.—D. p. 160.—Lam. 16.—Ch. f. 
282, 3,4.—H. t. 275. f. 2.—W.t. 7. f. 5. Somewhat heart- 
shaped, obliquely convex, decussated by longitudinal and trans- 
verse strie, and laminated at the margin of the anterior slope : 
lunule oblong heart-shaped : whitish with brown spots. 1..14.— 
American Seas ?— Timor ? —Not so tumid as Granulata. 
V. Cincuuata. Lam. 17.—V. Crenata. var. B.  Gimel. 
3280.—Ch. f. 386?—W. t. 8. f. 69? Heart-shaped, very con- 
vex, girt with transverse crenulated rings and very delicate inter- 
mediate transverse strize : white with brown spots disposed in rays : 
lunule heart-shaped: white within. 14. 
V. Carpioipes. Lam. 18.—HE. t. 274. f. 3.—V. ASPERRIMA. 
Son. in Z P. Rounded, triangular, whitish or fulvous, and 
rarely spotted ; with radiating grooves crossed by transverse slender 
strie : lunule oblong and colourless. 13.—Variety with reddish 
brown letter-like markings.— Cayenne and Jamaica. 
V. Grisea. Lam. 19.—Ovate, transverse, grey spotted inter- 
nally with violet, decussated, the longitudinal grooves being the 
more prominent: lunule oval. 1.—Not unlike V. Decussata. 
V. Evuretica. Lam. 20.—E. t. 267. f. 5. Elliptic, subequi- 
