180 UROCOPTIS, S. G. COCHLODINELLA. 



50. U. CONFERTA ( Arango) . 



"Shell rimate, subcylindric, rather solid, somewhat closely 

 striate, whitish ; spire shortly truncate ; suture impressed, not 

 crenulate; whorls remaining 10, somewhat flattened, the last 

 obsoletely carinate, shortly free; aperture subcircular, the 

 peristome a little reflexed. Length of truncate shell 10, diam. 

 2y 2 mm. Internal column simple" (Arango). 



Cuba. 



Cyl. conferta AR., Proc. Acad. N. S. Pbila. 1882, p. 108 

 (June 27). 



No further information has been published. 



51. U. ILLAMELLATA (/Wright' Pfr.). PL 42, figs. 86, 89, 90. 

 Shell subrimate, fusiform-turreted, rather thin, obliquely 



subarcuately striate, diaphanous, pale corneous. Spire a 

 little swollen in the middle, the apex entire, rather obtuse or 

 shortly truncate. Whorls 14 in an entire specimen, a little 

 convex, the last shortly free, obliquely protracted, rounded, 

 obsoletely compressed at the base, somewhat narrowed in 

 front. Aperture oblique, subcircular; peristome narrowly 

 expanded throughout. Internal column simple. Length 

 16i/ 2 , diam. 4 mm. (Pfr.). 



Western Cuba: La Palma, in district of Consolacion del 

 Norte, Pinar del Rio province (Chas. Wright). 



Cyl. illamellata Wright mss., PFR., Malak. Bl., xi, 1864, 

 p. 130; Monogr., vi, p. 373. Sows., Conch. Icon., xx, pi. 10, 

 f. 87. ARANGO, Coiitr., p. 116. U. "mamillata Wright, " 

 PILS. & VAN., Proc. A. N. S. P. 1898, p. 275. 



The specimens from Wright before me are pale brown and 

 rather opaque. The ribs are rather widely spaced, the inter- 

 vals being about three times their width. There is no basal 

 keel, but the whorl is noticeably compressed around the short 

 axial chink. The short neck is round. All of the specimens 

 I have seen are narrowly truncate. 



Length 16.2, diam. 3.8 mm. ; whorls 10y 2 . 



Length 14, diam. 3.6 mm. ; whorls 9%. 



The length of the neck varies a good deal, and it is often 

 shorter than in the specimen figured. 



