206 CATALOGUE OF PHANEROPNEUMONA. 
Cyclostoma diaphanum, Pfr. im Proc. Zool. Soc. 1851; Je. n. 312, 
t. 40, f. 36, 37. 
Chondropoma? diaphanum, Pfr. Consp. n. 427, p. 69; Pneum. Mon. 
p. 290. 
Locality unknown. 
§ 5. Peristome double, umbilicus open, outer edge narrower. 
22. CHONDROPOMA BLANDUM. 
Shell subperforate, ovate-turreted, truncate, rather solid, sculptured 
with raised spiral and more crowded longitudinal lines, traversing 
the ridges, diaphanous, somewhat shining, fuscous-violaceous or 
whitish, painted irregularly with reddish-brown stripes and 
minute lines; suture rather simple, whitish; whorls remaining 
4, convex, last rounded, more strongly spirally striated beneath ; 
aperture perpendicular, ovate ; peristome white, double ; inner 
edge shortly prominent; outer edge spreading narrowly and 
horizontally, slightly undulated, angularly dilated above, shortly 
indented on the penultimate whorl. Operculum like that of 
Ch. pictum. Length 18, breadth 93 mill. 
Cyclostoma blandum, Pfr. in Proc. Zool. Soc. 1852; Ic. n. 391, 
t. 47, £. 18,14. 
Chondropoma blandum, Pfr. Preum. Mon. p. 220. 
Hab. Haiti (Sallé). 
23. CHONDROPOMA ? JUCUNDUM. 
Shell perforate, ovate-turreted, thin, narrowly reticulated by spiral 
and longitudinal chord-like lines, rather coarse, scarcely shining, 
orange-reddish ; spire turreted, scarcely truncate ; suture crowd- 
edly denticulate; whorls 6-7, moderately convex, enlarging 
regularly, last furnished, round the perforation, with several 
stouter ridges; aperture somewhat oblique, irregularly ovate, of 
the same colour and shining within; peristome double ; inner 
edge slightly expanded, incumbent, very slightly arcuated on the 
left side ; outer edge continuous, spreading horizontally, shortly 
affixed to the penultimate whorl, narrower below the perforation. 
Operculum? Length 18, breadth 83 mill. 
Cyclostoma jucundum, Pfr. i Proc. Zool. Soc. 1851; Lc. n. 370, 
t. 46, £. 36, 37. 
Chondropoma? jucundum, Pfr, Consp. n. 428, p. 69; Pneum. Mon. 
p. 290. 
Locality unknown. 
24, CHONDROPOMA PETITIANUM. 
Shell subimperforate, oblong-turreted, truncate, sculptured with 
rather distant raised spiral lines and crowded longitudinal plaits 
