ACICULID oil 
Geomelania pauperata, Adams, Contrib. to Conch. n. 6, p. 97; Pfr. 
Mon. p. 12. 
Hab. Jamaica. 
15. GEOMELANIA BEARDSLEANA. 
Shell quite regularly conic, but much elongated, whitish, with 
closely set small obtuse ribs which are not oblique, not carinated 
‘anteriorly; spire with rectilinear outlines ; apex truncate, with 
the loss of 6 whorls; 8 whorls remaining, quite convex, with 
a deep suture ; last whorl a little detached, angular above ; lip 
sharp, reflected opposite to the penultimate whorl, otherwise 
scarcely reflected. Length 0.3, breadth 0.07 inch. (Adams.) 
Cylindrella Beardsleana, Adams, Contrib. to Conch. n. 2, p. 19. 
Geomelania Beardsleana, Adams, Contrib. to Conch. n. 6, p. 89; 
Pfr. Mon. p. 12. 
Hab. Jamaica. 
16. GEOMELANIA PYGMA. 
Shell minute, turreted, subtruncate, diaphanous, whitish, sculp- 
tured with crowded rather straight rib-like striae; whorls re- 
maining 7, convex, enlarging regularly and slowly; aperture 
scarcely oblique, ovate, slightly effuse; peristome shortly ex- 
panded, with the margins joined by a somewhat detached callus, 
right margin slightly dilated, linguiform part obsolete. Length 
45, breadth scarcely 1 mill. 
Cylindrella? pygmea, Adams, in Proc. Bost. Soc. 1845, p.14; Pfr. 
Monogr. Helic. ii. p. 386, n. 49. 
Geomelania pygmxa, Adams, Contrib. to Conch. un. 6, p. 89; Pfr. 
Mon. Preum. p. 12. 
Hab. Jamaica. 
§ 4. 
17. GEOMELANIA CONICA. 
Shell elongate-conic, whitish, with, on each whorl, thirty to thirty- 
five transverse slender moderately-arcuated ribs; spire with 
rectilinear outlines ; apex truncate, with the loss of 5 whorls ; 
whorls remaining 7, moderately convex, with a well-impressed 
suture ; aperture ovate, rather widely effuse ; labrum a little 
expanded and reflected, with the linguiform part excessively 
produced obliquely, and acute at the lower part of the right 
side. Length 0.39, greatest breadth 0.09, least br. 0.08 inch. 
(Adams.) ‘ 
Geomelania conica, Adams, Contrib. to Conch. nu. 6, p.97; Pfr. 
Mon. p. 12. 
Hab, Jamaica. 
