CYCLOPHORID&. 13 
15. Cycnotus JAMAICENSIS. B. M. 
Shell depressed-turbinate, solid, striate, with coarse wrinkled 
folds near the suture, flesh-coloured, with a chestnut, sometimes 
banded epidermis; spire short, turbinate, rather acuminate ; 
whorls 5, convex, the last one ventricose, furnished with a pro- 
minent, obtuse, compressed ridge round the umbilicus, which 
is broad and open; aperture oblique, ovate-rounded, inside 
shining, purplish-orange-red ; peristome straight, blunt; its 
margins joined into an angle, which is often doubled; right 
margin sinuate;.columellar margin strongly arcuate. Oper- 
culum with 6-7 whorls, which are concave, and the margins of 
which are a little raised and slightly reflected. Height 18, 
greatest breadth 26, least br. 22 mill. 
Turbo Jamaicensis, Chemn. Conch. xi. p. 277, t. 209, f. 2057, 2058 ; 
Gray, in Wood. Suppl. t. 6, f. 3. 
Cyclostoma Jamaicense, Gray, in Wood, Suppl. p. 36; Sow. Thes. 
p. 96, n. 15, t. 23, 12,13; Pfr. Ic. p. 16, n.7, t. 2, f. 15-17 
(excl. operc.), t. 44, f.1; Adams, Contrib. to Conch. n. 8, p. 143. 
Cyclostoma corrugatum, Menke, Catal. Mal. p. 10. 
Poteria, Gray, Syn. Br. Mus. 1842, p. 91; Proc. Z. S. 1847, p.181. 
Aperostoma Jamaicense, Pfr. in Z. f. MW. 184%, p. 104. 
Cyclotus (Poteria) lineatus, Gray, Cat. Cycl. p. 11, n. 27. 
Cyclotus Jamaicensis, Pfr. Consp. n. 15; Mon. p. 25. 
8. Shell all over slightly wrinkled, with the umbilicar ridge from 
the outside not compressed. (Pfr. Ic. t. 44, f. 2-4.) 
y. Shell reddish-white, with two broad chestnut bands, and the 
upper margin of the peristome more distinctly sinuate. Height 
12, diam. 21 mill. 
Hab. Jamaica. 
16. CycLoTUS CORRUGATUS. B. M. 
Shell subturbinate-depressed, solid, regularly all over angularly 
wrinkled, white, with a deciduous fulvid epidermis; spire 
short, reddish, rather acuminate ; whorls 5, convex, the last 
one cylindrical, nearly flat beneath, with a nodulous ridge 
around the umbilicus, which is open and of a middle size; 
aperture a little oblique, nearly circular, with a slight angle 
above, inside whitish ; peristome straight, blunt; its margins 
joined into an angle, which often is doubled; right margin 
slightly sinuate ; left margin shortly affixed to the penult whorl. 
Operculum concave externally, with 9 very narrow whorls, 
the margin of which is dilated into broad, spiral, raised, some- 
aaa ee lamina. Height 14, greatest breadth, 22, least 
r. 19mil- 
Cc 
