134 CATALOGUE OF PHANEROPNEUMONA. 
3. CycLosTOMUS CARINIFERUS. B. M. 
Shell depressed, rather discoidal, trellised by distinct strize of 
growth and very numerous raised keels and crowded spiral 
lines, fulvous-brownish, with a single darker band below the 
periphery ; spire scarcely raised, slightly mucronate; whorls 5, 
moderately convex, enlarging rapidly, depressed along the 
suture; umbilicus wide; aperture little oblique, nearly cir- 
cular; peristome fulvous, slightly thickened, shortly expanded, 
with the margins joined by a callus, which is produced up- 
wards, columellar margin dilated, rather reflected. Height 17, 
greatest breadth 40, least br. 32 mill. 
Cyclostoma cariniferum, Sov. Spec. Conch. f. 197,198; Reeve, Conch. 
Syst. t. 185, f. 23; Sow. Thes. n. 69, p. 114, t. 25, f.98; Pfr. Ic. 
n. 152, p. 144, t. 19, f. 13-15. 
Cyclophorus? cariniferus, Pfr. in Z. f. If. 1847, p. 108, n. 25; 
Gray, Cat. Cycl. p. 21, n. 25. 
Cyclostomus cariniferus, Pfr. Consp. n. 277; Pneum. Mon. p. 191. 
B. Smaller, with very numerous fainter keels, with the peristome 
reddish-orange-coloured; height 16, greatest breadth 36, least 
br. 28 mill. 
Cyclostoma spectabile, Petit, in Jowrn. Conch. 1850, i. p. 49, t. 3, 
see 
Hab. Madagascar, the variety from Nosse Faly, near Nosse Be 
(Guillair). 
4. CYCLOSTOMUS ARTICULATUS. 
Shell orbiculate-conoidal, solid, pale flesh-coloured, furnished with 
numerous keels, two or three of which are stronger and articu- 
lated with brown; spire broadly conoidal, with the apex rather 
blunt; whorls 5, moderately convex, rather angulated, increasing 
rapidly, the last one rather flattened below the peripherical 
keel, painted with a single brown band, grooved crowdedly and 
deeply, separated by a broader keel from the umbilicus, which 
is middle-sized, funnel-shaped, coarsely furrowed; aperture 
rather oblique, nearly circular, fulvous within ; peristome slightly 
thickened, straight, with the margins joined by a short lunar- 
shaped indented callus, right margin sinuate above. Height 18, 
greatest breadth 28, least br. 24 mill. 
Cyclostoma articulata, Gray, in Griff. Anim. Kingd. t. 28, f. 1. 
Cyclostoma filosum, Sow. Spec. Conch. f.16,17; Zool. of Beech. Voy. 
p. 146, t. 38, f. 31; Reeve, Conch. Syst. t. 184, £16; Sow. Thes. 
n. 16, p. 96, t. 23, f. 14; Pfr. Ic. n. 144, p. 137, t. 18, f. 12, 13. 
Cyclostoma Terveriana, Grateloup, in Act. Soc. Linn. Bord, xi. 
p. 439, t. 3, £. 8. 
Cyclophora articulata, Swains. Malac. p. 336. 
Tropidophora filosa et Terveriana, Pfr. in Z. f. M. 1847, p. 106. 
