CYCLOPHORID A. ba 
Cyclostoma immaculatum, Sow. Spec. Conch. Pt. ii. Cycl. f. 124; 
Beech, Voy. p. 146, t. 38, f. 29; Pfr. fc. n. 13, p. 22,.t. 3, f. 7, 
t. 4, f. 7, t. 7, f. 23, 24, t.16; £.9. : 
Cyclostoma maculata, Lea, Observ. ii. p. 68, t. 23, f. 87. i 
Cyclostoma maculosa, Souleyet, in Rev. Zool. 1842, p. 101; Voy. 
Bonite, t. 30, f. 38-41. 
Cyclostoma azaolanum, Sow. MSS. olim ; Jay, Catal. 1850, p. 250, 
n. 5812. 
Cyclostoma marginellum, Kiister, in Chemn. t. 4, f. 7, Index. 
Leptopoma immaculatum, Pfr..in Z. f. I. 1847, p. 108, n. 3; 
Consp. n. 152; Gray, Cat. Cycl. p. 25, n. 8; Pfr. Pneum. Mon. 
p. 105. 
Hab. The Philippine Islands (H. Cuming) ; Celebes, Manado (A. 
Adams). 
8. LePTOoPOMA LATELIMBATUM. 
Shell perforate, globose-conical, thin, sculptured with very minute 
spiral striz and rather equidistant obtuse ridges, diaphanous, 
somewhat shining, white, marbled with pale fulvous spots 
and bands; spire turbinate, rather pointed ;. whorls 5, mode- 
rately convex, enlarging rapidly, last rounded, slightly keeled 
on the periphery with a sharply-raised line ; umbilicus narrow, 
scarcely going through ; aperture oblique, nearly circular ; peri- 
stome white, double, inner edge interrupted, shortly produced, 
with the margin joined by a thin callus; outer edge equally 
dilated all round and expanded into the plane of the aperture, 
except near the perforation, where it is cut out. Height 11, 
greatest breadth 17, least br. 13 mill. 
Cyclostoma latelimbatum, Pfr. in Proc. Z. S. 1851; Ic. n. 297, 
t. 40, f. 1, 2. 
Leptopoma latelimbatum, Pfr. Consp. n. 153, p. 57; Pnewm. Mon. 
p. 106. 
Hab. The Philippine Islands. 
9. Leptopoma MAssEena. 
Shell perforate, globose-conical, rather thin, with close-set spiral 
striz, shining, whitish, varied with rusty-brownish spots and 
lines; spire conical, rather pointed; suture deep; whorls 5, 
convex, the last one keeled on the periphery, furnished above 
with four raised lines (which are obsolete on the upper whorls), 
rather smooth and little convex beneath; aperture rather 
oblique, circular, slightly angular; peristome simple, white, 
interrupted, expanded into a right angle, with the columellar 
margin emarginated below its insertion. Height 9, greatest 
breadth 11, least br. 9 mill. 
Cyclostoma Massenz, Lesson, Voy. Coquille, p. 346, t. 18, f. 7. 
