CYCLOPHORIDA. 8i 
me 186, t. 29, £196, 197; Pfr. Ic. nm. 9, p18, 2) £3, 45 Desh. 
Traité élém. Conch. t. 82, f. 9, 10. 
Leptopoma pileus, Pfr. in Z. f. M. 1847, p. 109, n. 17; Consp. 
n. 166; Gray, Cat. Cyel. p. 26, 0,15; Pfr. Prewm. Mon. p. 114. 
Hab. Island of Luzon, the Province of Flocos (H. Cuming). 
22. LEPTOPOMA ATRICAPILLUM. B. M. 
Shell perforate, globose-pyramidal, thin, diaphanous, whitish, 
variously striped and speckled with dark brown; spire pyra- 
midal, with the apex pointed, black; whorls 6, convex, marked 
with several more or less obsolete spiral ridges; last whorl 
slightly convex below the strongest keel, nearly smooth ; aper- 
ture oblique, roundish, sublunate, shining and white inside ; 
peristome thin, expanded, with distant margins; columellar 
margin slightly sinuate, scarcely dilated above, half covering 
the very narrow umbilicus. Height 11, greatest breadth 123, 
least br. 11 mill. 
Cyclostoma atricapillum, Sow. in Proc. Z. S. 1843, p. 64; Thes. 
n. 130, p. 137, t. 30, £. 230, 231; Pyr. Ic. nu. 12, p. 20. t. 2, 
f. 11, 12, t. 16, £6, 7. 
Leptopoma atricapillum, Pfr. in Z. f. Mf. 1847, p. 109, n. 18; 
Consp. n. 167; Gray, Cat. Cycl. p. 26, nu. 16; Pfr. Prnewm. Mon. 
ce ipa is a3 
Hab. Island of Mindoro, Calapan (H. Cuming). 
23. LEPTOPOMA REGULARE. 
Shell very narrowly perforate, conically-globular, thin, sculp- 
tured with rather crowded spiral edges, which are equal 
above, very closely spirally striate in the interstices, dia- 
phanous, whitish, regularly speckled with fulvous spots ; spire 
turbinate, with the apex pointed, pale horn-coloured ; whorls 
53, moderately convex, the last one more rounded, inflate, and 
more obsoletely spirally striate below the peripherical ridge ; 
aperture oblique, roundish, sublunate; peristome interrupted, 
thin, white, shortly expanded, with the columellar margin 
rather angularly dilated at its lower extremity. Height 10, 
greatest breadth 123, least br. 10 mill. 
Cyclostoma regulare, Pfr. in Proc. Z. S. 1851; Ic. n. 298, t. 40, 
f. 3,4. 
Leptopoma regulare, Pfr. Consp. n. 168, p. 58; Pnewm. Mon. 
p. 116. 
Hab. The Philippine Islands. 
Nearly allied to L. atricapillum, from which it differs by shorter 
spire, regular ridges, narrower umbilicus, etc. 
