APPENDIX. 367 
On Carpita (p. 144). C. squamifera of Sowerby proves identical 
with C. crassicosta (p. 146), and is a native of Australia, not of 
Senegal; C. squamosa of Sow. (p. 147) has been termed C. Sene- 
galensis by Reeve, whose Cypric. vellicata (I. Cyp. f. 7) is the mature 
state of C. levigata (p. 148). For additional species consult Reeve’s 
monograph (Conch. Ic.), Proc. Bost. 2, 3, Zeit. Mal. 1847, 1848, 
Voyage de la Venus, and D’Orbigny’s 8. Am. and Cuba Shells. 
Cardita megastropha (as Venericardia m. p. 129), t. 18, f. 22... 
Co sulcaia, p. 144,. t: 18, $2 «2.5. Ajarpelaa, t118; £3 >.< 
C. pborealis, p.145, t. 18; f. 4 ..: C2 crassa, p. 145, t. 17, £58"... 
C. Cuvieri, p. 146, t. 17, f. 56 ... C. tumida, p. 146, t. 17, f. 57 ... 
C. varia, p. 146, t. 18, f. 21 ... C. tricolor, p. 146, t. 17, f. 60, and 
t. 18, f.9 ... C. spurca, p. 146, t. 18, f. 16 ... C. muricata, p. 146, 
t. 18, £17 <... (C. crassicosta, p. 146, t 18, £19 .....C. mufescens; 
p. 147, t. 180.20)... C. nodulosa, p. 147, 't. 18, 1:25). C. caly: 
culata, p- 147, t. 18, f.. 7 5.. C2 aviculina; p. 148) )t.018; f) Q4 x0. 
C. sublavigata, p. 148, t. 18, f. 28 ... C. lithophaga, p. 148, t. 18, 
f. 26 ... C. radiata, p. 148, t. 18, f. 8 ... C. affinis, p. 149, t. 18, 
f. 15... C. pectunculus, p. 149, t. 18, f. 13. 
Carpira AusTRALIs (t. 17, f. 59).—Venericarpra A. Quoy, Ast. 
t. 78, f. 11, 2.—C. TRipenrata, Reeve (as of Say, Am. C. t. 40), 
I. Car, f. 22. Transverse, obovate, very inequilateral, solid, of an 
uniform dull whitish hue, at most subventricose, covered with 
radiating crenated ribs (about 22), that are rounded, close together, 
and not much raised; the crenz nodulous on the umbones, squamu- 
lar near the convexly sloping ligamental edge, and obsolete (in the 
adult) near the subarcuated ventral margin ; costal intervals smooth ; 
lunule small, profound, cordate; imside white. 1%...13. N. Zea- 
land. 
CaRDITA ABYSSICOLA (t. 18, f. 1), Hinds, Sulp. p. 65, t. 19, f. 3.— 
Reeve, I. Card. f. 37. Squarish-subcordate, very inequilateral, firm, 
tumid, snow-white, with very numerous square-cut prominent radi- 
ating ribs, that are most closely crenated with raised scales, and 
divided by broader intervals ; ligamental edge horizontal, straightish, 
subparallel with the ventral; anterior edge rounded; posterior 
extremity narrow: lunule large, rounded-cordate, impressed. 1. 
Straits of Malacca. 
CARDITA CANALICULATA (not of Reeve, Z. P. 1843, p. 193), t. 18, 
f.5. Tyansyersely suborbicular, subcordate, rather oblique, very in- 
equilateral, rather strong, more or less yentricose, dull, mottled with 
white and intense flesh-colour, the former chiefly present at the um- 
bones; rayed with, about 18 prominent ribs, all of them closely 
noduled with very numerous transverse solid crenz; their intervals 
square-cut, and of about equal breadth ; ventral edge arcuated, rising 
