230 UROCOPTIS, S. G. GONGYLOSTOMA. 



104. U. FUSIFORMIS ('Wright' Pfr.). PI. 59, figs. 75, 76, 82. 

 Shell subcylindric below, the upper half tapering to a 



narrow truncation or an obtuse, entire apex, thin, whitish 

 corneous. Surface lustreless, sculptured with strong narrow 

 ribs, which are parted by spaces of three or four times their 

 width. Whorls convex, the last shortly free, slightly de- 

 scending. Aperture circular, the peristome reflexed through- 

 out. Axis with a single delicate, acute lamella near the 

 base in each whorl, denticulate at the edge, and either nearly 

 simple above it, or encircled by one or two weak, low and 

 inconspicuous spiral cords. 



Length 12.5, diam. 2.9 mm.; whorls M 1 /^ (apex entire). 



Length 15.5, diam. 3 mm.; whorls 12 (Pfr., type; truncate). 



Western Cuba: San Diego de los Banos, Pinar del Rio 

 (Wright) ; Guladon a Carquanabo (Wright). 



Cyl. fusiformis Wright mss., PFR., Malak. Bl., xi, 1863, 

 p. 12; Monogr., vi, p. 380. ARANGO, Contrib., p. 120. Not 

 Pupa fusiformis C. B. Ad., 1845, a var. of Anoma maugeri. 



The spaced riblets remind one of the U. crispula group, 

 but the delicate axial sculpture is widely unlike that group. 



105. U. INTEGRA (Pfeiffer). PI. 59, figs. 71, 72, 73, 74. 



Shell fusiform, much attenuated above, the apex entire; 

 pale brown. Surface somewhat dull, sculptured with rather 

 widely spaced, thread-like riblets, which are stronger and 

 whitish near the sutures, weak or obsolete on the convexity 

 of each whorl, usually continuous on the last whorl. Whorls 

 convex, the last free, descending and produced forward, the 

 neck acutely costulate. Aperture oblique, circular, brownish 

 within ; peristome continuous, expanded and reflexed. Axis 

 slender, trilamellate, the lower lamella largest, minutely 

 denticulate above, extending weakly in the last whorl ; median 

 lamella well developed in the third and fourth whorls up- 

 ward, weak or hardly entering the last whorl. Upper 

 lamella low and small, sometimes obsolete. 



Length 14.5, diam. 2.75 mm. ; whorls 16!/o. 



Length 13.5, diam. 3 mm. ; whorls 16. 



Length 11.5, diam. 2.6 mm. ; whorls 14%. 



