210 UKOCOPTIS, S. G. GONGY.LOSTOMA. 



Western Cuba : Vinales, Pinar del Rio, in the same locality 

 with C. capillacea. 



Cyl. propinqua Gundl., ARANGO, Proc. Acad. N. S. Phila. 

 1882, p. 108 (June 27, 1882). 



The original description is translated above. Associated 

 with specimens of U. capillacea collected at Vinales by Chas. 

 Wright, I found a number of tri-lamellate shells (pi. 51, 

 figs. 19, 23) no doubt referable to U. propinqua. They are 

 rather broadly truncate, corneous or slightly yellowish cor- 

 neous, a little more finely striate than U. saxosa, but the 

 striae are low and subobsqlete, glossy, the striae closer on the 

 neck than in U. saxosa and allied species. The axis has 

 three strong lamellae, subequal in the penult, whorl, above 

 which the upper lamella decidedly dominates, the other two 

 being about equal, the lower one rather distantly spinose. 

 In the tapering upper whorls the median lamella disappears, 

 the other two being about equal, the lower one rather closely 

 serrate. It resembles the pillar of U. brunnescens (pi. 51, 

 fig. 18) so closely that I have thought it superfluous to figure 

 both. 



Length 12.4, diam. 3 mm. ; whorls 11. 



Length 11, diani. 2.8 mm.; whorls 9y 2 . 



The truncation is broader than in U. saxosa. 



83. U. VINCTA ('Gundl.' Pfr.). PL 51, figs. 9, 10, 21, and 

 fig. above f. 8. 



Shell cylindrical, the upper third tapering to a moderately 

 wide truncation, thin, corneous, more or less translucent; 

 glossy, nearly smooth, sculptured with, low, often nearly 

 obsolete, rather coarse, weak striae, becoming distinct and 

 rather crowded on the last half whorl. Whorls moderately 

 convex, the last rounded beneath, free in front, the neck 

 grooved below the umbilical chink. Aperture subcircular, 

 oblique, the peristome white, narrowly reflexed, the colu- 

 mella provided with an emerging fold below. Axis with 

 three lamella, the upper one wide in the intermediate whorls, 

 the median lamella smallest, obsolete in the penult, whorl, 



