CYCLOPHORID A. 203 
Chondropoma obesum, Pfr. in Z. f. M. 1847, p. 109, n.5; Gray, 
Cat. Cycl.p. 56, n. 4; Pfr. Consp. n. 421; Pneum. Mon. p. 285. 
Hab. Cuba. 
15. CHONDROPOMA SEMILABRE. 
Shell subperforate, ovate-elongated, truncate, rather solid, sculp- 
tured with longitudinal plaits and decussated sometimes with 
very indistinct spiral striz, shining, diaphanous, whitish, 
painted, for the most part, with chestnut-coloured interrupted 
lines or narrow bands; suture crenulated very minutely ; whorls 
remaining 4, slightly convex, last somewhat detached anteriorly, 
keeled above, concentrically striated beneath; aperture perpen- 
dicular, obliquely ovate, acuminated ; peristome blunt, shortly 
and slightly expanded all rouud. Operculum whitish. Length 
19, breadth 934 mill. 
Cyclostoma semilabris, Zam. Hist. vi. p. 146, n. 12; Hd. Désh. viii. 
p. 357; Deless. Recueil, t. 29, f.1; Chenu, Ill. Conch. t. 1, f. 1. 
Cyclostoma semilabrum, Sow. Thes. n. 44, p. 106, t. 24, f. 60. 
Cyclostoma semilabre, P/r. Jc. n. 130, p. 126, t. 15, £17, 18 (from 
Deless. & Sowerby), t. 37, f.1, 2, t. 49, £17-20; Pfr. in Z. f. 
M. 1850, p. 80. 
Chondropoma semilabre, Pfr. in Z. f. M. 1847, p. 109, n. 2; Gray, 
Cat. Cycl. p. 55, n. 2; Pfr. Consp. n. 422; Pneum. Mon. p. 286. 
Hab. Haiti (Sallé). 
16. CHONDROPOMA DENTATUM. B. M. 
Shell perforate, oblong-conic, truncate, rather thin, narrowly and 
slightly reticulated by longitudinal and spiral striae, slightly 
shining, horn-coloured-yellowish or reddish-brown, painted with 
darker angulated longitudinal lines, marked sometimes with a 
single broad brown band; suture crenulated with rather close- 
set white teeth; whorls remaining 43, moderately convex, last 
somewhat lessened, more strongly spirally grooved beneath; 
aperture perpendicular, obliquely ovate; peristome simple, 
somewhat thickened, very shortly expanded, often spotted with 
brown, continuous, scarcely touching the penultimate whorl, 
angulated above. Operculum pale fuscous. Length 9-13, 
breadth 4!—6 mill. 
Cyclostoma dentatum, Say, in Philad. Journ. v. p. 125. 
Cyclostoma lineolatum, Anton Verzichn. p. 54, n. 1958. (Not 
Lamarck.) 
Cyclostoma crenulatum, Pfr. in Wiegm. Arch. f. Naturg. 1839, i. 
p. 356; Jc. n. 123, p. 119, t. 14, f.24, 25, 30, 31. (Not Férussac.) 
Cyclostoma Auberiana, Orb. Moll. Cub. i. p. 260, t. 22, f. 12-14. 
Cyclostoma Aubereanum, Sow. Thes. n. 150, p. 144, t. 31, f. 285. 
