CISTULA $. 5. 269 
g. 5. 
16. €.? Iugubris Pfr. 
.T. perforata, turrito-oblonga, solida, truncata, liris obtu- 
sis spiralibus, costulisque submembranaceis illas transgredien- 
tibus sculpta, fuscula, violaceo-fusco late unifasciata; spira 
parum attenuata; sutura confertim et subacute fasciculato- 
crenata; anfr. superst. 9 convexiuscul, ultimus antice breviter 
solutus, subdescendens, dorso compressus, basi distantius spi- 
ralhter liratus; apertura verticalis, oblique ovalis; perist. sub- 
simplex, continuum, margine sinistro breviter, reliquis paulo 
latius expansis, subundulatis. — Operc.? — Long. 16, diam. 
fere 7 mill. Ap. oblique 5 mill. longa, 4 lata. (Mus. Cuming.) 
Cyclostoma lugubre Pfr. in Proc. Zool. Soc. 1851. Jul. 
z5 — . Chemn. ed. II. N. 317. t. 41. £. 11. 12. 
Cistula? lugubris Pfr. Consp. N. 395. p. 67. 
Habitat in insula Jamaica. 
440 
17. €.? mordax Adams. 441 
T. subperforata, oblongo-pupaeformis, tenuis, truncata, 
liris distantibus, obtusis, spiralibus, striisque longitudinalibus 
confertis, illas superantibus, sculpta, fuscula, punctis et lineis 
interruptis rufis ornata; sutura obsolete crenulata; anfr. superst. 
5 modice convexi, ultimus angustior, antice breviter solutus ; 
apertura verticalis, oblique ovalis, superne subangulata; perist. 
simplex, breviter expansiusculum, in angulo supero subdila- 
tatum. — Operc.? — Long. 15, diam. 6'/, mill. Ap. 4'/, 
mill. longa. (Coll. Nr. 193.) 
Cyclostoma mordax Adams Contrib. to Conch. N. 1. p. 12. *) 
— . Chemn, ed. II. N. 372. t. 46. f. 31. 32. 
Cistula? mordax Pfr. Consp. N. 396. 
Habitat in insula Jamaica. 
*) Shell much elongated; pale brown, often at the summit deep reddish 
brown, with several spiral series of very small deep brown spots, of which 
those next below the suture are the larger, and a somewhat interrupted 
band of the same around the anterior extremity; with closely set much 
elevated sharp transverse lamellae, which are slightly crenulated by numerous 
spiral impressed lines, of which one next below the suture is more deeply 
impressed; spire with scarcely convex outlines; apex truncate with the loss 
of nearly three whorls; nearly five quite convex whorls remaining, with a 
well impressed suture; last whorl a little detached from the penult whorl 
next the aperture; aperture ovate-orbiecular; lip simple, slightly spread, re- 
fleeted nearly into the plane of the aperture, more developed at the angle 
