150 CATALOGUE OF PHANEROPNEUMONA. 
Cyclostoma Harveyanum, Sow. Spec. Conch. f.210*; Reeve, Conch. 
Syst. t. 184, f.13; Sow. Thes. n. 106, p. 128, t. 30, f. 250. 
Tropidophora aspera, Gray, Cat. Cycl. p. 40, n. 9. 
Cyclostomus asper, Pfr. Consp. n. 311; Pnewm. Mon. p. 213. 
Hab. Madagascar. 
40. CYcLOSTOMUS PYROSTOMUS. B. M. 
Shell globose-turbinate, rather solid, nearly smooth, slightly 
grooved spirally above,shining, fulvous flesh-coloured or whitish, 
indistinctly striped and with a single pale violaceous band below 
the periphery; spire turbinate, rather pointed; whorls 53, con- 
vex, last cylindrical, smooth beneath; umbilicus middle-sized ; 
aperture somewhat oblique, ovate-roundish, anteriorly blackish 
within ; peristome simple, fire-red, with the margins joined by 
a short indented callus; right margin scarcely expanded; colu- 
mellar margin slightly reflected. Height 14-18, greatest breadth 
183-25, least br. 153-21 mill. 
Cyclostoma hemastoma, Gratelowp, in Act. Bord. xi. p. 437, t. 3, 
f. 5. (Not Anton.) 
Cyclostoma pyrostoma, Sow. Spec. Conch. f. 227, 228; Reeve, Conch 
Syst. t. 183, £.9; Sow. Thes. n. 108, p. 129, t. 29, f. 200; Pfr. Lc. 
n. 171, p. 157, t. 21, f. 23 (copied), t. 34, f. 1-4. 
‘Tropidophora? pyrostoma, Gray, Cat. Cycl. p. 41, n. 13. 
Cyclostomus pyrostomus, Pfr. Consp. n. 312; Pneum. Mon. p. 214. 
Hab. Madagascar, Mayotte. 
41. CycLostomus ? sTRIATULUS. 
Shell globose-turbinated, solid, marked above with oblique striz, 
and rather crowded concentrical raised lines, scarcely shining, 
yellowish-white, spire shortly turbinated, with the apex rather 
blunt; whorls 5, convex, the upper ones smooth, the last one 
inflated, obsoletely angular at its periphery ; umbilicus middle- 
sized, deep ; aperture somewhat oblique, roundish, rather angular ; 
peristome continuous, shortly affixed, thickened, slightly ex- 
panded, angulated above. Height 15, greatest breadth 252, 
least br. 21 mill. 
Cyclostoma striatulum, Pfr. in Proc. Zool. Soc. 1852; Jc. un. 403, 
t. 49, f. 1, 2. 
Cyclostomus ? striatulus, Pfr. Pnewm. Mon. p. 214. 
Locality unknown. 
42, CYCLOSTOMUS FULVESCENS. B. M. 
Shell globose-conical, rather thin, equally sculptured with crowded 
raised spiral lines, fuscous-fulvous; spire conical, rather pointed ; 
