APPENDIX. 361 
margins more arcuated; the ligamental edge straightish and _hori- 
zontal; the concentric lamellee more crowded, and very rough in 
front; the exterior with brown or ferruginous angular streaks on a 
whitish ground; the anterior extremity neither stained within nor 
without. 24. Moluccas? It also resembles V. Listert, but is much 
rounder. 
Venus scaBra (t. 16, f. 24), Hanl. Z. P. 1844, p. 161.— Sow. 
Th. 2, p. 718, t. 157, f. 101, 2.—Cutone s. Desh. Vener. p. 130. 
Ovate-heart-shaped, inequilateral, somewhat ventricose, pale brown, 
with crowded radiating costelle, which are roughened by concentric 
scales; ventral edge crenated, much arcuated; dorsal edges little 
convex, the hinder one short; beaks acute, inclined; lunule not 
conspicuous ; the anterior slope not excavated ; inside livid, darker in 
front. +4...4%;. Philippines. The riblets are peculiarly strong upon 
the umbones, from whence they separate into 2 or 3 smaller ones, which 
become, as they advance, more densely armed with the concentric rows 
of scales. 
Venus roporata (t. 16, f. 25), Hanl. Z. P. 1844, p. 161.—Sow. 
Th. 2, t. 157, f. 117.  Triangular-heart-shaped, solid, very inequi- 
lateral, more or less ventricose, whitish, stained inside with purple in 
front, girt with numerous smooth blunt concentric belts, whose inter- 
vals are likewise devoid of sculpture; ventral edge arcuated, slightly 
crenulated ; front dorsal edge convex, and much sloping: lunule pro- 
found, heart-shaped; anterior slope smooth, excavated; hinder side 
with a very blunt groove radiating from the beaks to the ventral 
corner. 1...1. Van Dieman’s Land. 
Vunus CALOPHYLTA (t. 16, f. 26)—V. THrara, Sow. G. (not Dil.) 
—Reeve, t. 67, f. 3.—V. c. Phil. Wieg. Arc. 1836, 229, t. 8, f. 2.— 
Sow. Th. 2, p. 172, t. 160, f. 176.—Desh. Vener. p. 120. Obovate- 
subtrigonal, subcordate, very inequilateral, not solid, rather com- 
pressed, cream or pale flesh-coloured, sometimes spotted with ruddy 
flesh-colour on the thin remote much-elevated concentric lamelle, 
which traverse the shell, but are interrupted near both extremities 
and absent from the shelving anterior slope and the subcordiform 
pouting lunule; ventral edge arcuated, minutely crenulated; dorsal 
slopes decided; ligament very slender; beaks recurved; inside not 
stained anteriorly. 1%...13. China; Australia. 
VENUS GALLINA (t. 16, f. 42), Lin. Sys. ed. 10.—Ch. f. 308, 9, 0,— 
Phil. 1, p. 44.—Sow. Th. 2, p. 734, t. 161, f. 202, 3.—CuHIonrE a, 
Desh. Vener. p. 143. Obovate-heart-shaped, inequilateral, solid, 
ventricose, closely painted with minute angular lines of livid or rufous 
brown on a whitish ground, and usually adorned with 3 rays of the 
same tint, or more rarely of pure white; surface coarsely closely and 
unsymmetrically grooved concentrically, the raised intervals often 
QF 
