CYCLOPHORID A. 131 
larly joined above, columellar margin thickened, not concealing 
the umbilicus, which is small and not pervious. Operculum ? 
Height 14, greatest breadth 18, least br. 15 mill. 
Cyclostoma politum, Sow. Thes. n. 18, p. 97, t. 23, f.17; Pfr. Ic. 
n. 167, p. 155, t. 21, f. 13, 14. . 
Otopoma politum, Gray, Cat. Cyel. p. 37, n. 7; Pfr. Consp. n. 271; 
Pneum. Mon. p. 186. 
Locality unknown. 
13. Oropoma ? sPURCUM. 
Shell orbiculate-turbinate, obconical, dirty white, widely umbili- 
cate, striate longitudinally; spire short, pointed; whorls con- 
vex; aperture open, rounded; labrum simple, sharp. Height 15, 
breadth 20 mill. 
Cyclostoma spurca, Grateloup, Act. Soc. Linn. Bord. xi. p. 444, t. 3, 
f. 18. 
Otopoma spurcum, Gray, Cat. Cycl. p. 37, 0.9; Pfr. Consp. n. 272; 
Pneum. Mon. p. 187. 
Hab. Bombay ? 
14. OToPOMA PYGMHUM. B. M. 
Shell perforate, globose-conical, rather thin, sculptured with mo- 
derately crowded ridges, brownish-whitish ; spire conical, rather 
pointed; whorls 5, convex, last rounded; aperture oblique, 
angularly ovate; peristome simple, slightly interrupted, with 
the right margin straight, columellar margin expanded and 
dilated into an indistinct angle in the middle. Height 4, 
greatest breadth 43, least br. 4 mill. 
Cyclostoma pygmeum, Sow. Thes. n. 39, p. 104, t. 30, f. 253. 
Otopoma pygmeum, Gray, Cat. Cycl. p.37,n.8; Pfr. Consp. n. 273 ; 
Pneum. Mon. p. 187. 
Hab. New Ireland (Hinds). 
§ 4. Axis umbilicated; right edge of peristome expanded ; 
deeply sinuous. 
15. OTOPOMA MULTILINEATUM. B. M. 
Shell globose-conoidal, solid, wrinkled and striate longitudinally, 
shining, fulvous; spire conical, with the apex rather blunt; 
whorls 43—5, convex, the last ventricose, marbled with white 
and fulvous, girdled with chestnut-coloured lines; aperture some- 
what oblique, roundish, rather angular, of the same colour within ; 
peristome slightly expanded, thickened, with the margins dis- 
tant, right margin angularly sinuous, deeply indented, colu- 
