132 TESTACEOUS MOLLUSCA. 



f. 1, 2. Obliquely heart-shaped, tumid, sub-equilateral, longer 

 than broad, whitish with irregular reddish brown spots, and 

 crowded longitudinal ribs which are covered with erect vaulted 

 anteriorly elongated scales, and have very narrow interstices : within 

 white, stained centrally with red, and the margin serrated. 2. . \\. 

 — W. Indies. — The Consors of Sow. C. I. is probably but a 

 variety of this species- 



C. Muricatum. Lin. 1123.— B. p. 120.— Lam. 18.— Wood. 

 G. C. t. 51. /. 2.—W. t. 5. /. 14.— Ch. f. 177, 8.-^. t. 297. 

 f. 1. Ovate heart-shaped, longer than broad, flesh-coloured or 

 yellowish stained or spotted with reddish chocolate ; with numerous 

 flattish ribs equal in breadth to the interstices, with their sides 

 armed with oblique flat tish spines, which all excepting about a dozen 

 at the posterior extremity, point anteriorly ; anterior serrated 

 margin edged with red yellow or scarlet : within with two purplish 

 brown rays. l|-..l^. — W. Indies. — S. Carolina. — Spines in- 

 distinct towards the centre. 



C. Angulatum. Lam. 19. — Seba. mus. 3. t. 86. f. 6. — 

 Longitudinal, ovate, oblique, whitish with purplish bands towards 

 the margin, and thirty-two ribs which are angulated on the upper 

 surface, transversely grooved, and the posterior ones crenulated as it 

 were obliquely by some elongated tubercles. 2f. — America^ — 

 Deshayes asserts that the 3Iuseum specimen is only a large C. 

 Rug o sum. 



C. Leucostomum. Born. t. 3. f. 6, 7. — D. p. 121. — Ch. f. 

 179.— C. Magnum. Var. B. Gmel. 3250.— W. t. 5. f. 20. 

 — C. Marmoreum. Lam. 20.— List. t. 331. /. 168. — ^7. t. 

 297. f 3. Longitudinally oval, moderately convex, subequilateral, 

 white mottled with orange and red, with thirty-two prominent ribs, 

 which are crenated on both sides, are larger than their interstices and 

 somewhat tuberculated at the posterior extremity ; on the anterior 

 side where sometimes are a few lanceolate prickles, the margin is 

 serrated and tinged with yellow; white within. — Variety. Larger, 

 with the posterior depression glabrous and lanceolate. 2f . . 2. 

 — Jamaica. — Ceylon. 



C. Elongatum. Lam. 21. — Brug. Bict. no. 26. (except 

 synonyms.) — An. Seba. 3. t. 86. f. 2 1— C. I. f. 49? Longi- 

 tudinally oblong, subequilateral, white mottled with yellow or 

 fulvous, with forty flattened- serrated ribs which are angular at 

 their sides, and the posterior ones transversely grooved ; within 

 white with a purple spot anteriorly. Length 3f. — W. Indies. — 

 More tumid and elongated than the last. 



C. Ventricosum. Brug. — Lam. 22, — B. p. 121. — W. t. 5. 



/. 19.— List. t. 328. /. 165.—^ t. 299. /. 1.- C. Maculatum. 



Gm. 3255. Very large, obliquely heart-shaped, longer than broad, 



very inequilateral, ventricose, subdepressed anteriorly, ferruginous 



with brown spots of irregular bands; with from thirty-three to 



