CYCLOPHORIDH, 103 
axis, rather circular; peristome slightly thickened, shortly ex- 
panded. Length 74, breadth 5 mill. 
Pupina pellucida, Sow. in Proc. Z. S. 1841, p. 102; Thes. n. 2, 
p. 17, t. 4, f. 18-20; Pfr. Ic. p. 202, t. 27, f. 17, 18. 
Registoma pellucidum, Gray, Cat. Cyel. p. 32,n.2; Pfr. Consp. 
n. 212; Pneum. Mon. p. 145. 
Hab. The Philippine Islands of Luzon and Zebu (H. Cuming). 
3. REGISTOMA SIMILE. B. M. 
Shell ovate, rather elongate, smooth, shining, pellucid, pale fulyous ; 
apex rather pointed; whorls 6, nearly flat, the last forming 
scarcely one-third of the whole length; suture linear, rather 
simple; columella thickened, vaulted, separated from the peri- 
stome by an oblique deep notch, terminating in an open hole, 
which is conspicuous on the back of the shell; aperture nearly 
circular, with its base slightly protracted, circular; peristome 
thickened, expanded, yellowish-white. Length 11, breadth 5% 
mill. 
Pupina similis, Sow. in Proc. Z. 8. 1841, p. 102; Thes. n. 5, p. 18, 
t.4,f.4,5; Reeve, Conch. Syst. t.181, f. 3,4; Pfr. Ic. p. 202, 
t. 27, f. 13, 14. 
Registoma simile, Gray, Cat. Cycl. p. 82. n.3; Pfr. Consp. n. 213; 
Pneum. Mon. p. 146. 
Hab. Bolino, Island of Luzon, province of Zambales (H. Cuming). 
4, REGISTOMA FUSCUM. B. M. 
Shell ovate-acuminate, highly polished, shining, pellucid, brown- 
ish-fulvous ; whorls 63-7, convex, the last narrower than the 
penultimate, not equalling one-third of the total length; suture 
simple, slightly callous; columella short, rather convex, termi- 
nated by a rather horizontal notch, which ends in a triangular 
hole, not conspicuous on the back of the shell; aperture large, 
circular, nearly perpendicular; peristome dilated, flattened, ex- 
panded, orange-coloured or yellow, with the basal margin 
strongly arcuate. Length 11, breadth 5} mill. 
Pupina fusea, Gray, in Ann. of Nat. Hist. vi. 1840, p. 77. 
Pupina vitrea, Sow. in Proc. Z. S. 1841, p. 102; Thes. n. 4, p. 10, 
t. 4, f. 6,7; Conch. Man. ed. ii. f. 524; Reeve, Conch. Syst. t. 181, 
f.1,2; Pfr. Ic. p. 2038, t. 27, f. 9-12; Desh. Traité élém. Conch. 
t. 82, f. 19, 20. 
Registoma vitreum, Hasselt. Allg. kh. en. letterb. 1823. 
Registoma fuscum, Gray, Cat. Cyel. p. 32, 0.4; Pfr. Consp. n. 214; 
Pneum. Mon. p. 146. 
Heb. Lazon and Mindanao (H, Cuming). 
