TRIBE CONCHACEA. 99 
times form two indistinct rays: white within. 13..2.—S. Ame- 
rica, W. Indies. 
C. Crrrina. Lam. 24.—Desh. E. vol. 2. p. 56.—Del. t. 8. f. 
8.—Curione Srriata. Gray in Analyst, 1838. ‘'Triangularly 
heart-shaped, transversely striated, citron colour spotted ventrally 
on the anterior side both within and without with reddish brown ; 
the anterior slope reddish and somewhat rayed; lunule sub-cordate, 
inside purplish brown. 13.— New Holland. 
C. Arpina. Lam. 25.—Del.t. 8. f. 5. Somewhat heart-shaped, 
ovate, white, with the umbones pale, marked with a few trans- 
verse strize; scarcely any lunule; perfectly white within. 13.— 
Indian Ocean’?’—Slightly resembling List. t. 263. f. 99. 
C. Lara. Lam. 26.—VenusL. Lin. 1132.—W. t. 7.f. 49. 
—D. p. 180.—Ch. f. 353, 4.-—H. t. 266. f.4.—Bl. t. 74. f. 1. 
-——V. Arrinis. Gmel. 3278. Somewhat heart-shaped, obovate, 
tumid, not thick, whitish with rather interrupted tawny rays; 
‘lunule subovate and raised towards its point, where it forms an 
angle; inner dise often fleshy pink. 2.— Jolluccas.—Variety. 
Without rays, but with minute red spots at the umbones. 
C. Macrroipes. Lam. 27.—Del. t. 8. f. 2. Triangular, sub- 
equilateral, depressed, ferruginous, with a few white rays, and trans- 
verse strize towards the ventral margin ; the anterior slope rufous 
or rust-coloured and flattened ; lunule lanceolate, beaks whitish : 
white within. 2. 
C. Tricgonetia. Lam. 28.—Dei. t. 8. f. 3.—TRIGONELLA 
ANGULIFERA. Gray in Analyst, 1838. Small, triangularly- 
ovate, smooth, mottled with pale fulvous and purple, and marked 
with rufous angularly flexuous lines ; spotted within.— W. Inites. 
C. Suucatina. Lam. 29.—Ch. f. 371, 2.—E. t. 269. f. 3. 
Rounded triangular, brownish red rayed with white, with transverse 
strize, which almost become grooves posteriorly ; lunule heart- 
shaped: golden yellow within. 1%.—India.—Variety. Pale 
brown at the anterior end: white within. 
C. Hesraa. Lam. 30.— Del. t. 8. f. 6. Obliquely heart- 
shaped, ventricose, transversely striated, white, somewhat rayed 
with linked fulvous letter-like markings, and stained with reddish 
brown under each beak in the interior, which elsewhere is white. 
11.—Indian Ocean? 
C. Casrrensis. Lam. 31.— Reeve. t. 71. f. 2—VeENus C. 
Lin. 1132.—D. p. 183.—Ch. f. 367, 8.—W. t. 7. fi 57.— 
Knorr. 1.21. f. 5. §& 2. t. 20, fo 2. h 6. 6.6. f2 5, 6.—Mast..t. 
262. f. 98. Roundish, heart-shaped, broader than long, ventricose, 
thick, glabrous, white, with scattered purplish brown chesnut or 
yellowish short broad angulated streaks, one of whose edges is 
broken: lunule elongated, heart-shaped, and defined by a groove. 
Variety. Ch. f. 1662. With short brown forked markings, the 
angle being directed towards the beak. 21.—Indian Ocean. 
H 2 
