UROCOPTJS OP JAMAICA. 141 





and finely, obliquely rib-striate. Whorls 8~y 2 to lO 1 /^, some- 

 what convex, the last not free in front, with a distinct basal 

 carina, stronger on the latter half. Aperture slightly oblique, 

 subcircular, pale within; peristome white or light, broadly 

 expanded and reflexed, adnate above. Internal pillar slender 

 and straight within each whorl. Young shell very long, slen- 

 der and gradually tapering, many-whorled, so that if retained 

 to the adult stage the shell would consist of over 20 whorls. 



Length 31, diam. 9 mm. ; whorls 



Length 34, diam. 9 mm. ; whorls 



Length 24, diam. 8 mm. ; whorls 8y 2 . 



Jamaica: Northeastern part of St. Catherine, at Bogwalk 

 (Henderson, Schumo, figs. 71, 72, 75) and Natural Bridge, 

 Riversdale. 



Pupa nobilior C. B. AD., Proc. Bost. Soc. N. H., ii, p. 15 

 (1845). Cylindrella nobilior Ad., PFR., Monogr., iii, p. 567; 

 iv, 696; vi, 365. HENDERSON, Nautilus, viii, p. 19. Cylin- 

 drella binneyana C. B. Ad., PFR., in Philippi, Abbild., ii, p. 

 49, pi. 2, f. 11 (except middle fig.), 17; Monogr., ii, p. 373. 

 C. nobilior Adams, SOWERBY, Conch. Icon., xx, pi. 6, f. 53. 



A strongly marked species, always pale colored, and differ- 

 ing from other species with the peristome adnate, by its 

 straight and slender internal column. 



Cylindrella transaperta Sowerby (Conch. Icon., xx, pi. 9, 

 f. 77, 1875) seems to differ from U. nobilior chiefly in the 

 broader, less rounded aperture. It is thus described: "Shell 

 broad, subcylindrical, brownish, very finely striated; perma- 

 nent whorls 9 or 10, straight-sided, upper narrow ; last rather 

 square, with a long notch [rima] ; aperture transversely ob- 

 long, inner lip touching, thick, white. The inner margin of 

 the mouth touches the middle of the last whorl, across which 

 it is extended. " Habitat unknown. Type in coll. Sowerby. 

 PL 3, fig. 25, is a copy of the original figure. 



18. U. BAQUIEANA (Chitty). PL 35, figs. 39, 40, 41. 



Shell cylindric- tapering, solid and strong, dingy light yel- 

 lowish with a dark dull red narrow border above and below 

 the suture, and a fainter reddish band above the basal keel; 



