180 CATALOGUE OF PHANEROPNEUMONA. 
23. TUDORA PUPOIDES. 
Shell pyramidal, not truncate, thin, sculptured with longitudinal 
slightly-waving folds, brownish-ash-gray or fulvous with rust- 
coloured spiral lines, diaphanous, somewhat shining; spire tur- 
reted, rather pointed ; suture deep, arcuated somewhat distantly ; 
whorls 64, convex, last rounded; aperture perpendicular, ovate- 
roundish ; peristome white, double; inner edge produced shortly ; 
outer edge dilated, striated concentrically, spreading nearly into 
the plane of the aperture, angularly slightly reflexed above, 
affixed to the penultimate whorl; left margin divided into two 
lobes, of which the upper closes entirely the umbilicus, and the 
lower is half-detached, folded radiatingly. Operculum obliquely 
striated. Length 154, breadth nearly 7 mill. 
Cyclostoma pupoides, Morelet, Testac. Noviss. p. 23, n. 57; Pfr. Ic. 
n. 305, t. 40, f. 19, 20. 
Tudora pupoides, Pfr. Consp. n. 376; Pneum. Mon. p. 257. 
Hab. Isla de Pinos, near Cuba. 
24. TuporA MoRELETIANA. 
Shell subperforate, oblong-pupoid, rather thin, truncate, sculptured 
with rather distant thread-like longitudinal striz, brownish- 
violaceous or pale fulvous, often with rather interrupted reddish 
spiral lines; suture deep, with white crenulations; whorls re- 
maining 4-5, moderately convex, the last one detached ante- 
riorly, keeled above; aperture perpendicular, ovate; peristome 
double; inner edge very short; outer edge slightly reflected, 
more reflected like a hook on the upper angle. Operculum with 
the outer volution deeply striated. Length 123, breadth 6! 
mill. 
Cyclostoma disjunctum, Morelet, Testac. Noviss. p. 23, n. 58. (Not 
Math., nor Moric.) 
Cyclostoma Morelletiana, Petit, in Journ. Conch. 1850, i. p. 46. 
Choanopoma Moreleti, Pfr. in Z. £. M. 1850, p. 88. 
Cyclostoma Moreletianum, Pfr. Jc. n. 272, t. 37, f. 27, 28. 
Tudora Moreletiana, Pfr. Consp. n. 377; Pneum. Mon. p. 257. 
Hab. Isla de Pinos, near Cuba. 
25. TuDORA AVENA. 
Shell subperforate, turreted, truncate, crowdedly folded longitu- 
dinally, fuscous, painted with series of reddish-brown spots; 
suture crenulated by the white prominent bundles of ribs; 
whorls remaining 5, little convex, last detached anteriorly, 
keeled above; aperture perpendicular, ovate; peristome double ; 
inner edge scarcely prominent; outer edge expanded, with the 
margins angularly joined above, right margin broader. Oper- 
culum typical. Length 82, breadth 3} mill. 
