HELICINID &. 249 
vaulted, with the apex rather blunt; whorls 44, almost flat, last 
rounded, marked with a pale peripherical band, shortly descend- 
- ing anteriorly, rather convex beneath ; aperture oblique, semi- 
ovate, whitish within; columella white, shortly arcuate forwards, 
terminating at its base in a knot, diffused backwards into a 
thick circumscript callus ; peristome straight, thickened inter- 
nally, white, with the upper margin sinuate. Operculum nearly 
semicircular, rather thin, shelly, reddish internally. Height 
11-14, greatest breadth 16-20, least br. 13-17 mill. 
Helicina pulcherrima, Zea, Observ. i. p. 161, t. 19, f. 57, 11. p. 69 ; 
Sow. Thes. n. 11, p. 4, t. 1, £14; Reeve, Conch. Syst. i. t. 186, 
f. 6; Pfr. Ic. n. 9, p. 17, t. 1, f. 5-7, t. 6, £. 5,6; Pneum. Mon. 
p. 345. 
Helicina crassa, Orb. Moll. Cub. i. p. 248, t. 19, f. 5, 6. 
Hab. Cuba. 
13. HELICINA SANGUINEA. 
Shell conoidally orbicular, thick, sculptured with slight punctiform 
striz, opaque, blood-red; spire short, conoidal, rather pointed ; 
whorls 42, flat, the last one moderately convex on both sides, 
slightly angulated at the periphery; aperture oblique, nearly tri- 
angular, higher than broad; columella furnished at its interior 
base with a tooth, dilated backwards into a thin, semicircular 
callus; peristome straight, somewhat lipped internally, with the 
basal margin nearly rectilinear. Height 6, greatest breadth 103, 
least br. 9 mill. 
Helicina sanguinea, Pfr. in Proc. Z. S. 1848, p. 124; Jc. n. 10, 
p. 17, t. 8, f. 23, 24; Pnewm. Mon. p. 345. 
flab. Honduras (Dyson). 
14. HenicInaA STRIATULA. 
Shell nearly semiglobular, rather solid, faintly striated obliquely, 
diaphanous, scarcely shining, fuscous-reddish-brown ; spire con- 
vex, slightly mucronate; suture linear, slightly bordered ; 
whorls 6, nearly flat, last scarcely more convex; columella very 
short, dilated backwards into an extremely thin callus; aper- 
ture oblique, lunate, rather triangular; peristome straight, 
thickened, showing an indistinct knot at its junction with the 
columella. Height 5, greatest breadth 83, least br. 72 mill. 
Helicina striatula, Sowerby, in Proc. Z. S. 1842, p.6; Thes. n. 6, 
p. 3, t. 1, f. 43; Pfr. Ic. n. 11, p. 18, t. 8, f. 32, 33; Pnewm. Mon. 
p. 346 (not Potiez & Mich.). 
Hab, Martinique. 
