CYCLOPHORIDZ. ei 
bilicus deep, rather open; aperture circular; peristome slightly 
expanded and reflected, rather duplicate above, outer edge 
somewhat angulated. Operculum horny, with 7-8 volutions. 
Height 4, greatest breadth 12, least br. 10 mill. 
Cyclostoma Pheenotopicum, Benson, in Annals and Mag. 2nd ser. 
viii. 1851, p. 190; Pfr. Ic. n. 419, t. 50, f. 20, 21. 
Cyclophorus Pheenotopicus, Pfr. Consp. n. 145; Pneum. Mon. 
p. 100, 417. 
flab. India, Darjiling, Sikkim-Himalayah. 
CyctopHorus Moricanpi. 
Shell turbinate-depressed, rather solid, sculptured minutely with 
regular, thread-like ribs, opaque, whitish; spire slightly turbi- 
nate, with the apex rather pointed; whorls 43, convex, the last 
one cylindrical, shortly detached anteriorly; aperture scarcely 
oblique, circular; peristome simple, continuous, thin, straight. 
Height 4, greatest breadth 6, least br. 5 mill. 
Cyclostoma disjunctum Moricand, Mém. 3¢ Suppl. p. 64, t. 5, 
f. 26-29; Pfr. Ic. n. 246, t. 35, f.1, 2, not Matheron. 
Cyclopoma disjunctum, Z'roschel, in Arch. f. Naturg. 1847, ii. 
. ddl. 
Pe iguhorus disjunctus, Pfr.in Z. f. M. 1847, p. 108, n. 39; Consp. 
n. 146; Gray, Cat. Cycl. p. 23, n. 36. 
Cyclophorus Moricandi, Pfr. Pneum. Mon. p. 100. 
Hab. Brazils. 
VI. LEPTOPOMA. 
Operculum membranous, closely whorled, flat. Shell globose-tur- 
binated or conical, narrowly umbilicated. Peristome simple 
(rarely double), reflexed (rarely straight), with distant margins, 
joined sometimes by a very thin callus. 
Leptopoma, Pfr. in Z. f. M. 1847. p. 47, 108; 1851, p. 144; Consp. 
p. 16; Gray, Cat. Cyc. p. 23; Pfr. Preum. Mon. p. 101. 
Cyclostoma spec., Awctt. 
A. Peristome reflected. 
1. Not keeled : t : GAT? Mage ag 
2. Keeled. 
a. Globose-conical. 
a Keel very slight ‘ TS ie oO Fes 
8 Keel sharp j ’ : Yd. Gy! IS=17 
6. Conical : : 4. ,, 18-25 
B. Peristome, simple, straight . : 5. 4, 26-29 
