UROCOPTIS, S. G. GONGYLOSTOMA. 277 



whitish obsoletely variegated with brownish. Spire very 

 much attenuated. Whorls 12 to 15, convex, the last free, 

 prolonged downward, cylindrical. Aperture oblique, round; 

 peristome shortly expanded throughout. Length 6%, diam. 

 11/3 lines [12.5x2.6 mm.] (P/V.). 



Cuba (Pfr.) : San Jose de las Lajas, in prov. of Havana 

 (Arango) ; between the Tetas de Managua and San Jose de 

 las Lajas (Poey). 



Cyl. philippiana PFR., in Philippi, Abbild., ii, p. 50, pi. 2, 

 f. 12 (Oct., 1845) ; Monogr., ii, p. 378; iii, 579; iv, 709; vi, 

 388; vii, 445; Conchyl. Cab., p. 50, pi. 5, f. 27-29. POEY, 

 Memorias, i, p. 203, pi. 12, f. 7-10. GUNDL., Malak. Bl., 1857, 

 p. 47. ARANGO, Contrib., p. 126. SOWERBY, C. Icon., xx, 

 pi. 15, f. 132. Cyl. aculeus MORELET, Testae. Noviss., i, p. 12, 

 no. 18 (1849). 



Very near U. plicata, from which it differs in scarcely any- 

 thing but the closer ribs. In perfect shells the apex is a little 

 swollen and there are 18 or 19 whorls. The axis is slender 

 and very slightly sinuous. There is great variation in the 

 length of the neck. 



Pfeiffer's figures in the Conchylien Cabinet, which I have 

 copied, pi. 65, figs. 1, 2, do not seem to my eye very charac- 

 teristic. The original figures in Philippi 's Abbildungen, one 

 of which I have copied (fig. 14), are excellent, and agree 

 with numerous specimens before me (f. 15, 16). 



C. aculeus Morelet, from the Tetas de Managua, seems to 

 be rightly referred to this species by Pfeiffer, the description 

 scarcely differing except in the number of whorls, Morelet 

 describing an entire, Pfeiffer a truncate individual. "Shell 

 lengthened-fusiform, entire, slender, ribbed with somewhat 

 oblique, distant plicae, corneous-brown; spire much attenu- 

 ated, the apex rather obtuse. Whorls 18, convex, the last 

 free, stretched downward, cylindric. Aperture round, the 

 peristome narrowly expanded throughout. Length 12%, 

 diam. 2% mm." (Morel.). 



163. U. PLICATA (Poey). PL 65, figs. 17, 18. 



Shell fusiform-turrete, the lower half somewhat swollen, 



