218 UROCOPTIS, S. G. GONGYLOSTOMA. 



die, thin, pale corneous, crispate-ribbed with waved folds. 

 Whorls 12-13, convex, the last tapering, free, a little pro- 

 duced. Aperture orbicular; peristome expanded and a little 

 reflexed throughout. Length 15, diam. 4, diam. of aperture 

 3 mm." (Pfr.). 



Western Cuba: A wood on a coffee plantation between 

 Buena Vista and El Fundator, near the latter place, on the 

 river Canimar, prov. Matanzas (Pfr.). 



Clausilia crispula PFR., Wiegm. Archiv fur Naturgeschichte 

 1839, i, p. 353. Cyl. crispula PFR., I. c. 1840, i, p. 42 ; Phil.,. 

 Abbild., i. p. 181, pi. 1, f . 13 ; Monogr., ii, p. 377 ; Conchyl, 

 Cab., p. 27, pi. 4, f. 1-3. ARANGO, Contrib., p. 119. 

 SOWERBY, C. Icon., pi. 5, f. 39. Pupa crispula GLD., Journ.. 

 Boston Soc. N. H., iv, p. 492. 



This shell is nearly white, and usually a trifle wider above- 

 the middle than below. The slightly crimped riblets, though 

 narrow and compressed, hardly more than a fourth the width 

 of the intervals, are generally at least in part hollow, a few 

 broken down on the spire usually showing this structure. 

 The neck is short, and the internal column like that figured 

 for U. artemisice. Pfeiffer's type was an unusually large 

 example, most specimens measuring less, length 13, diam. 

 3.2 mm.; whorls 11. 



88. U. CORONADOI ('Arango' Pfr.). PI. 54, fig. 71. 



Shell sinistral, subcylindric or moderately swollen in the 

 middle; lustreless, corneous or flesh- tinted, sculptured with 

 narrow, oblique hardly arcuate riblets, separated by wide 

 intervals; whorls convex, the last shortly free. Aperture 

 circular, somewhat oblique, the peristome whitish, slightly 

 expanded. Internal column encircled by two lamellae, the 

 lower compressed, minutely denticulate in the earlier whorls, 

 the upper lamella low and rounded, cord-like. 



Length 12, diam. 3.3 mm.; whorls 10. 



Length 11.5, diam. 2.8 mm. ; whorls 10. 



Length 13.5, diam. 3 mm.; whorls 10-11 (Pfr., types). 



Western Cuba: Puentes Grandes, type locality; Chorrera 

 (Arango) ; Carmelo (S. N. Rhoads), all near Havana. 



