CYCLOPHORIDZ. 59 
decussated by very minute strie of growth; spire pointed ; 
whorls 5, rounded ; aperture small, ovate; peristome simple, 
thick. Height 3, breadth 7; inch. (G.) 
Cyclostoma obligatum, Gould, in Proc. Bost. Soc. 1847, p. 205; 
Exped. Shells, p. 38, ed. 1851, p. 104, f. 119. 
Cyclophorus ? obligatus, Pfr. Consp. n. 117 ; Pneum. Mon. p. 84. 
Hab. The Island of Matea. 
55. CycLoPHORUS PARVUS. B. M. 
Shell depressed-turbinate, rather thin, slightly striate, with 4 or 
5 obsolete keels, fulvid-whitish, with radiating brownish 
streaks; spire turbinate, with the apex rather pointed, horny ; 
whorls 5-6, convex, the last one somewhat depressed, usually 
furnished with a more distinct keel round the funnel-shaped 
umbilicus ; aperture oblique, nearly circular ; peristome rather 
simple, straight, with the margins united by a short deposit, 
which is somewhat emarginate; right margin forward, arcuate, 
prominent. Opere. horny, thick. Height 5}, greatest breadth 
9, least br. 72 mill. 
Cyclostoma parvum, Sow. in Proc. Z. S. 1843, p. 66; Thes. n. 29, 
p. 101, t. 31, f. 254, 255; Pfr. Ic. n. 98, p. 100, t. 13, f. 15, 16. 
Cyclophorus parvus, Gray, Catal. Cycloph. p. 23, n. 37; Pfr. Consp. 
n. 118; Mon. p. 85. 
8. Smaller, brownish ; height 3, greatest breadth 5, least br. 
4 mill. 
Hab. The Philippine islands Zebu and Panay (H. Cuming). 
56. CychopHorus ? FLAVUS. B. M. 
Shell conically globular, thick, yellow, closely sculptured with 
spiral furrows ; spire conoidal, rather pointed; whorls 44, 
convex, the last one ventricose ; umbilicus extremely narrow, 
not going through; aperture ovate, slightly angulated above; 
peristome simple, blunt, with the margins joined by a deposit 
on the penult whorl; columellar margin flattened. Operc. 
horny (Brod.) Height 7, greatest breadth 8, least br. 63 mill. 
Cyclostoma flavum, Broderip, in Proc. Z. S. 1832, p. 59 ; Mill. 
Synops. p. 38; Sow. Thes. n. 55, p. 109, t. 24, f.70; Pfr. Lc. 
n. 14, p. 23, t. 3, f. 9-11. 
Chondropoma flavum, Gray, Catal. Cycl. p. 57, n. 7. 
Cyclophorus? flavus, Pfr. Consp. n. 119; Mon. p. 85. 
Hab. The Island Annaa (H. Cuming). 
57. CycLoPHoRUS ? EUOMPHALUS. 
Shell subglobose-depressed, solid, smooth, white, painted with 
indistinct brownish spots, which are on the last whorl arranged 
