UROCOPTIS, S. G. GONGYLOSTOMA. 237 



3. Banded but otherwise unicolor. 



a. Opaque, flesh-colored, the band ascending above 

 the suture. U. sauvalleana, no. 116. 



a 1 . Corneous, somewhat transparent. 



&. Length 26-30, diam. 5-6 mm. ; very finely, 

 subobsoletely striate. 



U. torquata, no. 115. 



6 1 . Smaller, slender, diam. about 3-4 mm. 

 c. Base strongly carinate. 



U. acuSj no. 121. 



c 1 . Base obsoletely or thread- or cord- 

 carinate. 



d. Spire smooth. 



U. decolorata, no. 118. 



d 1 . Spire weakly, coarsely striate. 



U. adnata, no. 119 ; U. cren- 



ulata, no. 120. 



115. U. TORQUATA (Morelet). PL 56, figs. 12, 13, 14, 15, 16. 



Shell shortly rimate, cylindric, the upper half tapering 

 slowly to a narrow truncation or an obtuse apex, thin; cor- 

 neous, the last whorl girt below the middle with a red-brown 

 band. Surface smoothish, glossy, under a lens showing very 

 fine, nearly effaced striation, which becomes more distinct on 

 the last whorl. Whorls slightly convex, inconspicuously 

 crenulate below the suture, the last rounded beneath, encir- 

 cled by a slight keel below the band; not free in front. 

 Aperture rounded-oval, oblique, the peristome expanded, 

 interrupted above. Columella obliquely truncate below. 

 Axis encircled near the base in each whorl by a thin, acutely 

 and strongly serrate lamella. 



Length 30, diam. 5.2 mm. ; whorls 121/4. 



Length 26.5, diam. 5 mm. ; whorls 11. 



Length 28, diam. 5 mm. ; whorls 16 (apex entire). 



Length 27, diam. 6 mm.; whorls 12 (Morelet, type). 



Western Cuba: Mt. Guajaybon (A. Morelet); Rangel, in 

 the woods on trees, on the Taco Taco river, Mr. Blain's estate 

 (Gundlach), both in Pinar del Rio. 



