UROCOPTIS, S. G. GONGYLOSTOMA. 219 



Cyl. coronadoi Arango, PFR., Malak. Bl., xi, p. 13 ; Monogr., 

 vi, p. 378 ; Novit. Conch., p. 251, pi. 63, f . 26-29. So WERBY, 

 C. Icon., xx, pi. 12, f . 108. ARANGO, Contrib., p. 119. f C. 

 corona SCHAUF., Paetel, Cat., p. 68. 



Near U. crispula, but constantly sinistral, with the peri- 

 stome narrower, but slightly expanded, and the upper axial 

 lamella is smaller, reduced to a rounded cord, more obliquely 

 coiled than the lower lamella. The young shell is attenuated 

 near the apex, then increases more rapidly. The first two 

 whorls are smooth, and apparently about 9 are rejected in 

 the adult state. Named for Don Francisco Javier Coronado, 

 a conchologist and physician of Havana. 



(Group of U. elegans.) 



89. U. ARANGIANA (' Gundl. ' Arango). 



Like Cyl. elegans, but differing in the greater number of 

 whorls in specimens of equal length; in the more cylindric 

 shape of the shell, the whorls less convex. Fourteen whorls 

 remain. It especially differs from elegans in that the inter- 

 nal column has two stronger, thicker, subequal lamellae in 

 all the whorls, the upper one a little wider (Grundlach). 



Western Cuba: Canasi, near Matanzas (Arango). 



Cyl. arangiana Gundl. mss., ARANGO, Contrib., p. 113 

 (1878). Known to me by the original description, trans- 

 lated above. It must be very similar to the typical U. elegans. 







90. U. ELEGANS (Pfeiffer). PI. 53, figs. 41-45, 66. 



"Shell decollate, cylindric, the truncate apex slightly 

 attenuate; glossy, hyaline, reddish or brown near the apex; 

 very obliquely and closely, elegantly striate. Whorls 16, 

 convex, subequal, the last narrowed, protracted, subcylin- 

 drical. Aperture circular, the peristome simple, expanded 

 throughout. Length 19, diam. 4 mm.; apert. with perist. 

 3y 4 mm. diam." (P/V.). 



Western Cuba: Very abundant around Matanzas, espe- 

 cially on the banks of the Canimar river, at El Fundator 

 (Pfr.) . Ferinicea" (Wright) . 



Clausilia elegans PFR., Archiv f. Naturg., 1839, i, p. 353. 



