CYCLOPHORIDZ. 193 
Cyclostoma fallax, Pfr. in Proc. Z. S. 1851; Ic. n. 369, t. 45, 
f. 21, 22 
Cistula ? fallax, Pfr. Consp. n. 404, p. 68; Pnewm. Mon. p. 273. 
Locality unknown. 
27. CistULA ? SERICINA. 
Shell much elongated, conic, silky, white, with four spiral series of 
’ brown dots, of which three appear on the spire; around the um- 
bilicus is a fifth series less distinct ; with crowded regular trans- 
verse obtuse fine raised lines; spire with the outlines moderately 
convex, truncated with the loss of two whorls; whorls remaining 
43, quite convex, with a rather deep suture; aperture slightly 
detached from the penultimate whorl; inner peritreme indis- 
tinct; outer peritreme moderately expanded, except on the left 
side, which is not reflected; umbilicus small. Mean divergence 
about 38°; length 0.62, greatest breadth 0.36, least br. 0.26 
inch. (Adams.) 
Cyclostoma sericinum, Adams, Contrib. to Conchol. nu. 9, p. 156. 
Cistula? sericina, Pfr. Consp. n. 405; Pnewm. Mon. p. 2738 
Hab, Jamaica, New Hope, Westmoreland. 
28. CistuLA ? CAMPBELLIL. 
Shell elongate-conic; colour ..... ? with numerous transverse 
moderately-elevated lamelle ; apex acute; spire not truncated, 
with the outlines but little convex; whorls 62, quite convex, 
with a rather deep suture; last whorl at the end much detached 
from the penultimate whorl, and angular above; aperture nearly 
circular, with the inner peritreme moderately produced, and 
the outer peritreme small and expanded into the plane of the 
aperture; umbilicus small. Mean divergence about 40°; length 
0.36, greatest breadth 0.2, least br. 0.16 inch. 
Cyclostoma Campbellii, Adams, Contrib. to Conchol. n. 9, p. 154. 
Cistula ? Campbellu, Pfr. Consp. n. 406; Pnewm. Mon. p. 274. 
Hab. Jamaica, Westmoreland. 
§ 7. Shell ovate or oblong-turreted ; last whorl detached in front ; 
peristome double, outer edge fringed. 
29. CistuLA ? CONFUSA. 
Shell scarcely perforate, oblong-turreted, truncate, solid, flesh- 
coloured fuscous, very closely trellised with crowded spiral 
ridges and minute longitudinal ribs, traversing the ridges; 
suture crenulate with crowded white teeth; whorls 5, mode- 
rately convex, increasing regularly, last shortly detached ante- 
riorly ; aperture perpendicular, obliquely ovate, fuscous, shining 
s 
