178 CATALOGUE OF PHANEROPNEUMONA. 
two bands; spire turreted, broadly truncate; suture closely 
crenulate ; whorls remaining 43-5, moderately convex ; aper- 
ture perpendicular, obliquely ovate; peristome double; inner 
edge slightly expanded, white; outer edge white, yellow, or 
brownish-red, dilated, spreading rectangularly, indented on the 
penultimate whorl, with the columellar margin sinuate and 
reflexed, auriculated. Operculum like that of T. fascia. Length 
18, breadth 8 mill. 
Cyclostoma Auguste, Adams, Oonir. to Conch. n. 1, p. 6; Pfr. 
Ic, n. 311, t. 40, f. 34-35. 
Tudora Auguste, Pfr. Consp. n. 371; Pnewm. Mon. p. 253. 
B. See rel decussated, shining, varied with brown and 
whitish. 
Cyclostoma nitens, Adams, Contrib. to Conch. nu. 1, p. 8. 
Cyclostoma Auguste, Adams, Catal. Jam. 1851. 
Hab. Jamaica. 
This shell may be considered perhaps as a variety of T. fascia. 
19. Tupora ? CRENULOSA. 
Shell perforate, elongate-conic, solid, truncate, closely sculptured 
with longitudinal rib-like striz, blueish-white, clouded with fus- 
cous and very elegantly painted with reddish-brown zigzag- 
lines; suture little impressed, crowdedly denticulated; whorls 
remaining 5, little convex, the last brownish beneath; aperture 
perpendicular, ovate, slightly angulated above, grayish within ; 
peristome double; inner edge expanded, appressed, red ; outer 
edge white, dilated and spreading, angularly produced above 
and below the columella. Operculum? Length 21, breadth 95 
mill. 
Cyclostoma crenulosum, Adams, Contrib. to Conch. n. 1, p. 12. 
Tudora ? crenulosa, Pfr. Consp. n. 372; Pneum. Mon. p. 255. 
Hab. Jamaica. 
20. Tupora ? CANESCENS. 
Shell subperforate, oblong-turreted, shortly truncate, solid, trellised 
regularly with longitudinal and spiral raised lines, somewhat 
shining, grayish-white; spire elongated; suture fringed with 
crowded white knots; whorls remaining 7, scarcely convex, the 
last one narrower at its lower part, more distinctly spirally 
grooved round the obsolete perforation ; aperture vertical, angu- 
larly ovate, brownish-flesh-coloured within; peristome double; 
inner edge scarcely produced; outer edge narrowly spreading 
all round, angulated above, shortly affixed to the penultimate 
whorl. Length 20, breadth 7 mill. 
