HELICINID EZ. 237 
Helicina virginea, Zea, Observ. i. p. 162, t. 19, f. 58; Ord. Moll. 
Cub. i. p. 241% Sow. Thes. n. 20, p. 5, t. 1, f. 18, t. 3, f. 114. 
Helicina ampullina, Féruss. in Bull, Zool. 1835, p. 101. 
Trochatella virginea, Pfr. in Z. f. Mf. 1848, p. 82; Jc. n. 2, p. 5, 
t. 6, f. 7,8; Pnewm. Mon. p. 329. 
Hab. Haiti (Sallé) and Cuba. 
3. TROCHATELLA CHRYSOSTOMA. 
Shell globose-conic, solid, sculptured with sharp ridges above and 
with more crowded spiral striz beneath, opaque, white; spire 
conic, acutely mucronated; suture impressed; whorls 7, rather 
flat, last rounded; aperture oblique, semiovate, slightly tri- 
angular, gold-yellow within; columella perpendicular, dilated, 
shining ; peristome somewhat expanded, with the margin joined 
by a very thin callus which is not diffused backwards. Oper- 
culum solid, shelly. Height 94, greatest breadth 123, least br. 
10 mill. 
Helicina chrysostoma, Shuttleworth, in Mus. Cuming. 
Trochatella chrysostoma, Pfr. Ic. Helicina, t. 10, f. 3, 4; Pneum. 
Mon. p. 330. 
Hab. Cuba. 
4, TRocHATELLA GOULDIANA. 
Shell globose-conic, rather thin, striated obliquely, somewhat de- 
cussated by scarcely-elevated spiral lines, which are more 
distant above and very crowded beneath, yellow, with an in- 
distinct white band; spire conic, mucronate; whorls 6, rather 
flat, the last one angulated on the periphery, flattened beneath ; 
aperture very oblique, roundish-semiovate; columella short, 
perpendicular, slightly dilated; peristome somewhat expanded, 
with the margins joined by a thin callus, the basal margin 
forming with the columella an angle of about 90°. Operculum 
eee) whitish. Height 8, greatest breadth 11, least br. 
9 mill. 
Helicina Sloanii, Col/., not Orbigny. 
Trochatella Gouldiana, Pfr. in Z. f. M. 1850, p. 191; Jc. t. 10, 
f. 5,6; Pneum. Mon. p. 330. 
Hab. Cuba. 
5. TRoCHAPELLA SLOANEI, 
* hell conic, top-shaped, thin, diaphanous, yellow, striated trans- 
versely ; spire conic, with the apex pointed; whorls 7, flat, 
keeled; aperture triangular, white or reddish; peristome thin, 
sharp; columella not callous, Operculum white. Height 9, 
breadth 10 mill. 
