54 CATALOGUE Of PHANEROPNEUMONA. 
Cyclostoma linguiferum, Sow. in Proc. Z. 8. 1843, p. 31; Thes. p. 
125, n. 98, t. 29, £.198; Pfr. Ic. p. 168, n. 181, t. 23, f. 1-3. 
Cyclophorus linguiferus, Pfr. in Z. f. M. 1847, p. 107, n. 10; 
Consp. nu. 107; Gray, Cat. Cycl. p. 19, n. 19; Pfr. Pneum. Mon. 
p. 78. 
Hab. The Philippine Island of Bohol (H. Cuming). 
42. CycLOPHORUS CANALIFERUS. B. M. 
Shell depressed-turbinate, solid, sculptured above and beneath with 
crowded spiral strie, and with 7-8 blunt spiral ridges above, 
chestnut-coloured, spotted with white, and bearing an articu- 
lated white band along the suture, which is deeply channelled ; 
with a whitish peripherical band, below which the shell is 
uniformly chestnut-coloured, pale beneath; spire shortly raised, 
rather blunt ; whorls 5, convex, the last one rather disjoined ; 
umbilicus middle-sized, open; aperture small, rather oblique, 
nearly circular, shining and whitish inside; peristome thick- 
ened, shortly reflected, continuous, with the columellar margin 
expanded into a free, rather semicircular lamina. Opere. typical. 
Height 18, greatest breadth 26, least br. 22 mill. 
Cyclostoma canaliferum, Sow. in Proc. Z. S. 1843, p. 81; Spec. 
Conch. f. 195, 196; Thes. p. 115, n. 71, t. 27, f. 140,141; Pfr. Lc. 
p. 40, n. 32, t. 5, f. 14-16. , 
Cyclophorus canaliferus, Pfr. in Z. f. Mf. 1847, p. 107, n. 14; 
Consp. n. 108; Gray, Cat. Cycl. p. 19, n. 18; Pfr. Pnewm. Mon. 
Dp: ./0: 
B. Pale, spotted along the suture with chestnut-brown, and banded 
with the same below the middle. 
y. Pale yellowish, with the spire reddish, and the last whorl 
marked with a single chestnut-coloured basal band. 
5. With the lamina of the columellar margin less dilated, not 
semicircular. 
Hab. The province Tayabas, Island of Luzon (H. Cuming) ; var. 6, 
Borneo. 
43. CYCLOPHORUS LINGULATUS. B. M. 
Shell somewhat depressed-conoidal, rather thin, nearly smooth, 
chestnut-coloured, with white articulated bands along the suture 
and at the periphery ; spire short, acuminate; whorls 5, scarcely 
convex, the last one angulated above by 3-4 blunt spiral ridges, 
usually sharp-keeled at its periphery, convex beneath ; umbilicus 
middle-sized, funnel-shaped ; aperture scarcely oblique, rather 
circular, blueish inside; peristome continuous, usually double; 
‘inner edge sharp, scarcely prominent; outer edge thickened, 
with the left margin surrounded with a wing, which is dilated 
