120 CATALOGUE OF PHANEROPNEUMONA. 
continuous, shortly affixed, thickened, shortly reflected back- 
wards, rather angulated above. Length 12, breadth 72 mill. 
Cyclostoma pulchrius, Adams, in Proc. Bost. Soc. 1845, p. 11 
(Contrib. to Conch. p. 129). 
Cyclostoma Binneyanum, Adams, MSS. Olim; Pfr. in Z. f. M. 
1846, p. 47; Jc. n. 128, p. 124, t. 14, f, 12-14, 
Choanopoma Binneyanum, Gray, Cat. Cycl. p. 52, n. 20. 
Adamsiella pulchrior, Pfr. Consp. n. 245 ; Pneum. Mon. p. 170. 
8. Horn-coloured-brownish, banded and spotted obsoletely, with 
the decussating striz a little more distinct. 
Hab. Jamaica. 
§ 2. Shell pupiform, last whorl not detached, in front ; suture crenate. 
4, ADAMSIELLA VARIABILIS. B. M. 
Shell narrowly umbilicate, ovate-pyramidal, usually truncate, de- 
cussated by very crowded longitudinal folds and transverse 
striee, yellowish, with several series of brown spots, often dark 
violaceous above; suture irregularly and distantly crenate ; 
whorls remaining 4, convex, the last cylindrical ; aperture per- 
pendicular, circular; peristome indistinctly double; inner edge 
short, scarcely prominent; outer edge continuous, rather equally 
expanded all round, affixed on the penultimate whorl, angulated 
above. Length 14, breadth 8 mill. 
Cyclostoma articulatum, Sow. Thes. n. 144, p. 142, t. 28, f. 160, 
161. Not Gray. 
Cyclostoma variabile, Adams, Contrib. to Conch. p. 3; Pfr. Ie. 
n. 276, t. 38, f. 7, 8. 
Cyclostoma mutatum, Adams, Contrib. to Conch. p. 154. 
Choanopoma articulatum, P/r. in Z. f. Mf. 1847, p. 107, n. 10; 
Gray, Cat. Cycl. p. 52, n. 17. 
Adamsiella variabilis, Pfr. Consp. n. 246; Pneum. Mon. p. 171. 
Hab. Jamaica (Adams) ; Demerara (Sowerby). 
This shell is very variable, its decussating strize being more 
or less crowded and raised; peristome more or less thickened and 
reflected, often concentrically striate. 
5. ADAMSIELLA GRAYANA. B. M. 
Shell narrowly umbilicate, ovate-pupiform, truncated, dark, viola- 
ceous-brownish ; suture furnished with distant white knots; 
whorls remaining 43, convex, the upper ones strongly ribbed 
longitudinally, decussated by minute spiral striz, the following 
ones regularly and closely decussated, the last one not over- 
passing the preceding; aperture perpendicular, circular ; peri- 
stome indistinctly double, white, yellow, or reddish; inner edge 
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