122 TESTACEOUS MOLLUSCA. 
Adans. Seneg. t. 17. f. 12.—2#. t. 283. f. 5.—TrEiiina Can- 
cenuaTA. W.t. 4. f. 60. Ovate oblong, transversely grooved, 
whitish with short brown distant flamelike markings, (sometimes 
accompanied by white triangular spots,) and more or less marked 
with faint yellowish brown lineoles ; beaks very small and almost 
smooth; lunule elongated and indistinct. 14.—Africa.) 
V. Decussata.* Lin. 1135.—D. p. 205.—Lam. 46.—W. t.8. 
f.107.—Turt. B. p. 158.t. 8. f.10.—V. Fusca. Gel. 3281.— 
V. Ozscura. Gimel. 3289.—List. t. 423. f. 271.—Ch. f. 455, 6. 
—Don. 2. t. 67. Ovate, subangulated and broader at the anterior 
end, whitish or pale rust-colour, with usually purplish brown or 
rufous spots rays or zigzag markings: decussated by striz of 
which the longitudinal ones are the more prominent: the decus- 
sation strongest at the extremities often forming small tubercles at 
the anterior one ; lunule indistinct. 13 .:23.—Europe and South 
Seas. * 
V. Punzastra.* Mont. p. 124.—Lam. 47.—W. t. 8. f. 109. 
—V. SenrGautensis. Gm. 3282.—D. p. 206. and 8. t. 2. f. 7. 
— Dorset Cat. t. 1. f. 8.—Turt. B. p. 159. Oblong, reticulated 
byfine strize, of which the concentric ones are the more apparent 
and become somewhat lamellar at the anterior end, white with 
narrow angular reddish brown markings especially at the anterior 
extremity which is somewhat angulated: lunule more apparent 
than in the last. 14..13.—France, fe. 
V. Retirera. Lam. 50. Ovate oblong, transversely grooved, 
whitish with rather angulated fulvous lines so united as to form 
net-work rays: anterior slope and the oblong lunule brown: white 
within. 12.— Europe ? 
V. Anomata. Lam. 51. Ovate oblong, subangulated ante- 
riorly, very inequilateral, the posterior side being very short and with- 
out a depression the anterior slope elongated and gaping: pale, 
slightly reddish towards the beaks, with transverse strize which 
become somewhat ridgelike on the anterior extremity: hinge with 

1V. Guanpina.—Lam. 48.— Del. t. 10. f. 7, is according to 
Deshayes a Mediterranean variety of Geographica.—I add however 
the Lamarckian description.—Transversely oblong, with fine de- 
cussated strize, glossy, mottled with white and rufous so as to form 
indistinct rays; within with the umbones and the anterior side 
somewhat spotted. 1.—New Holland. 
2 Of this species Deshayes considers as a Variety—V. Trun- 
cata. Lam. 49. Ovate, the anterior side the broader and some- 
what truncated, tawny white mottled with bluish brown, and 
slightly decussated, the longitudinal grooves being the more ap- 
parent: yellow within. 11.— Shorter and wider than Decussata. 
