194 CATALOGUE OF PHANEROPNEUMONA. 
within; peristome double; inner edge light brownish, scarcely 
prominent, outer edge broadly expanded all round, with the 
margins angularly joined above, columellar margin wavingly 
crenulate. Operculum? Length 18, breadth 74 mill. 
Cyclostoma confusum, Pfr. MSS. 
Cyclostoma Delatreanum, Pfr. Jc. n. 122, p. 119, t. 14, f. 22, 23. 
(Not Orbigny.) 
Cistula ? confusa, Pfr. Consp. n. 407; Pnewm. Mon. p. 274. 
Hab. 
30. CistuLA SAvULIA. B. M. 
Shell perforate, oblong, rather turreted, truncate usually, thin, 
sculptured with crowded longitudinal fold-like striz, whitish, 
with obsolete series of fuscous dots; suture slightly bordered ; 
whorls 5 (when truncate)-8, rounded, the last cylindrical, 
rather detached anteriorly ; aperture perpendicular, nearly cir- 
cular, of the same colour and shining within ; peristome double; 
inner edge white, scarcely prominent or affixed, outer edge 
shortly expanded, narrower near the penultimate whorl, dilated 
and white above and on the columellar side, otherwise cre- 
nulated, alternately brown and white. Operculum typical. 
Length 14 (when not truncate 16), breadth 7 mill. 
Cyclostoma Sauliz, Sow. Thes. n. 152, p. 145, t. 28, f. 189; Pfr. Ic. 
n. 80, p. 85, t. 10, f. 24, 25. 
Choanopoma Saulie, Gray, Cat. Cycl. p. 51, n. 10. 
Cistula Sauliz, Pfr. Consp. n. 408; Pnewm. Mon. p. 275. 
Hab. Jamaica (Miss Saul). 
31. CisTULA ? TROCHLEARIS. 
Shell perforate, oblong-turreted, truncate, decussated rather regu- 
larly by thread-like spiral strie and longitudinal ribs, not shin- 
ing, pale fuscous, painted with reddish-brown dots arranged 
in indistinct series; spire elongated, screw-shaped, broadly 
truncate; suture deep, simple; whorls remaining 5, very con- 
vex, last slightly detached anteriorly; aperture perpendicular, 
nearly circular; peristome double; inner edge scarcely promi- 
nent, outer edge spreading horizontally, dilated above into a 
recurved beak, shortly interrupted on the penultimate whorl, 
grooved and crenulated on the left side. Operculum? Length 
14, breadth 6 mill. 
Oyclostoma trochlea, Pfr. in Proc. Z. 8.1851. (Not Benson.) 
Cyclostoma trochleare, Pfr. /c. n. 315, t. 41, f. 7, 8. 
Cistula? trochlearis, Pfr. Consp. nu. 409, p. 68; Pneum. Mon. 
p: 275. 
Locality unknown. 
