ACICULID&. 313 
liquely at the lower part of the right side; labium well thick- 
ened, slightly separated from the penultimate whorl except at 
the upper extremity. Length 0.38, greatest breadth 0.085, 
least br. 0.08 inch. (Ad.) 
Geomelania striosa, Adams, Contrib. to Conch. n. 6, p. 96; Pfr. 
Mon. p. 13. 
Hab. Jamaica. 
21. GEOMELANIA ELEGANS. 
Shell cylindrical, whitish, elegantly sculptured with distant, pro- 
minent, very slender ribs, which are not impressed by the very 
numerous microscopic spiral stria, of which about twenty are 
visible on the whorls of the spire; spire with nearly rectilinear 
outlines; apex truncate; 7 whorls remaining, quite convex, 
with a very deep suture; aperture ovate, moderately effuse ; 
labrum moderately thickened and reflected, and but little pro- 
duced at the lower part; labium prominent, rather thick, 
slightly detached from the penultimate whorl except at the 
very small sinus above which it unites with the labrum. 
Length 0.3, greatest breadth 0.08, least br. 0.07 inch. (Ad.) 
Geomelania elegans, Adams, Contrib. to Conch. n. 2, p. 18; Pfr. 
Mon. p. 14. 
Hab. Jamaica. 
