CYCLOPHORIDS. 195 
32. CistuLA SHEPARDIANA. 
Shell perforate, oblong-turreted, shortly truncate, rather thin, 
cinnamon-coloured, sculptured with obtusely-raised spiral lines, 
and very crowded slight longitudinal ribs (the fifth or seventh 
of which is stronger) traversing the ridges; spire regularly 
tapering; suture crenulated by the prominent bundles of ribs; 
whorls remaining 5, convex, the last one widely detached and 
deflected anteriorly, keeled above, rounded beneath ; aperture 
rather perpendicular, ovate; peristome orange-coloured, double ; 
inner edge shortly expanded, outer edge spreading angularly, 
waved, angularly dilated above. Operculum typical. Length 
12, breadth 55 mill. 
Cyclostoma Shepardianum, Adams, Contrib. to Conch. n. 6, p. 92 ; 
Pfr. Ic. n. 283, t. 38, f. 40-42. 
Cistula Shepardiana, Pfr. Consp. n. 410; Pneum. Mon. p. 276. 
8. Whitish, with series of chestnut-coloured dots; peristome white, 
with chestnut-coloured rays. (Pfr. lc. t. 38, f. 43-45.) 
Hab. Jamaica. 
33. CISTULA ? DISLOCATA. B. M. 
Shell narrowly perforate, turreted-oblong, truncate, sculptured 
with crowded longitudinal plaits, whitish, painted with reddish- 
brown dots arranged in series; whorls remaining 43, convex, 
the last compressed and widely detached anteriorly, slightly 
keeled above; aperture perpendicular, ovate ; peristome double ; 
inner edge scarcely prominent, outer edge angularly reflexed, 
subauriculate above, with the left margin grooved and crenu- 
lated, white, spotted with brown. Operculum? Length 10, 
breadth 5 mill. 
Cyclostoma dislocatum, Baird, ISS. Mus. Brit. 
Choanopoma dislocatum, Gray, Cat. Cycl. p. 51, n. 11. 
Cistula? dislocata, Pfr. Consp. n. 411; Pnewm. Mon. p. 277. 
Hab. Jamaica (Zincke). 
34, CISTULA SCABROSA. B. M. 
Shell perforate, oblong-turreted, truncate, cinnamon-coloured, 
opaque, sculptured with blunt spiral ridges, which are not con- 
tinuous, and very crowded longitudinal plaits, which are col- 
lected into bundles of 4-7; whorls remaining 42-5, convex, the 
last shortly detached anteriorly; suture crenated by the fas- 
cicled upper ends of the ribs; aperture rather perpendicular, 
ovate; peristome brick-coloured, double; inner edge slightly 
expanded, outer edge spreading, angulated above, elegantly 
erenulated on the lower and left margin. Operculum typical. 
Length 12, breadth 52 mill. 
