CYCLOPHORID A. 123 
remaining 4, convex, last rounded; aperture rather perpen- 
dicular, nearly circular; peristome white, double; inner edge 
slightly expanded, affixed; outer edge continuous, expanded 
horizontally, very shortly affixed to the penultimate whorl, an- 
gulated above. Length 123, breadth 6 mill. 
Cyclostoma pingue, Pfr. in Proc. Z. S. 1851; le. n. 321, t. 41, 
f. 20, 21 
Adamsiella pinguis, Pfr. Consp. n. 252, p. 60; Pneum. Mon. p. 175. 
Locality unknown. 
11. ADAMSIELLA IGNILABRIS. 
Shell open, perforate, elongate-conical, solid, crowdedly folded 
longitudinally, silk-shining, brownish or greenish-white; spire 
elongate, pointed, often slightly truncate; suture deep, simple; 
whorls 7 (remaining after truncation 43), convex, last rounded ; 
aperture perpendicular, ovate-roundish; peristome fire-red or 
white, double; inner edge scarcely prominent ; outer edge thick- 
ened, angularly reflected all round. Length (after truncation) 11, 
breadth not quite 5 mill. 
Cyclostoma ignilabre, Adams, Contr. to Conch. p. 9; Pfr. Ic. n. 281, 
t. 38, f. 23, 24. 
Adamsiella ignilabris, Pfr. Consp. n. 253; Pnewm. Mon. p. 175. 
Hab. Jamaica. rat Ate 
12. ADAMSIELLA CHLOROSTOMA. B. M. 
Shell perforate, cylindrical-turreted, truncate, solid, very closely 
folded longitudinally, decussated by impressed spiral lines, vio- 
laceous-blackish ; whorls remaining 5, convex, increasing regu- 
larly and slowly; aperture perpendicular, nearly circular, dark 
lead-coloured inside; peristome yellow, rather double; inner 
edge scarcely prominent or indistinct; outer edge horizontally 
expanded all round, with the upper and basal margins rather 
angularly dilated. Length 12, breadth 5 mill. 
Cyclostoma chlorostoma, Sow. Thes: n. 156, p. 146, t. 28, f. 168; 
Pfr. Ic. n. 117, p. 115, t. 14, f. #3. 
Cyclostoma sericeum, Féruss. Mus. 
Choanopoma chlorostoma, Gray, Cat. Cycl. p. 53, n. 24. 
Adamsiella chlorostoma, Pfr. Consp. n. 254; Pneum. Mon. p. 176. 
Hab. Demerara. 
