UROCOPTIS, S. G. GONGYLOSTOMA. 233 



Has the external sculpture of U. crispula and its allies, 

 or of U. artemesia, but the single weak spiral of the axis 

 distinguishes garciana. 



109. U. REMOTA (Arango). 



Shell cylindric-turrete, rather thin, thread-ribbed, dia- 

 phanous, pale corneous, the riblets remote, whitish. In the 

 single specimen the apex is truncate, 10 whorls remaining, 

 rather flattened, the last subcarinate beneath, free in front. 

 Aperture subcircular, the peristome shortly expanded, sub- 

 angulate at the place of the caringe. Internal column en- 

 circled by a single lamella. Length 13, diam. 3 mm. 

 (Arango). 



Western Cuba: Sierra de Guira, in dist. San Diego de los 

 Banos, prov. Pinar del Rio (Arango). 



Cyl. remota ARANGO, Contrib., p. 277 (1880). 



Shell very like C. guirensis, but the whorls are wider, 

 flatter, and the internal column is one-lamellate, and like 

 C. gutierrezi, but the column is different and the riblets are 

 more indistinct (Arango). 



110. U. MORALES: ('Gundl.' Arango). 



Very similar to Cyl. elegans in external features of the 

 shell, but the internal column differs, being encircled by a 

 thick thread. (Arango). 



Western Cuba: Ceiba Mocha, near Matanzas (Gundlach). 



Cyl. moralesi Gundl. mss., ARANGO, An. Real Acad. Cien. 

 Habana, xii, p. 283, no. 10 (1876) ; Contrib., p. 113. 



111. U. CONCRETA ('Gundl.' Pfr.). PI. 55, fig. 7. 



Shell shortly rimate, cylindric-turrete, thin, smooth, pel- 

 lucid, whitish-hyaline. Spire slowly tapering, truncate; 

 suture simple. Whorls remaining 11, flattened, the last 

 shortly free, closely striate in front, subsulcate near the axial 

 chink. Aperture oblique, circular; peristome narrowly ex- 

 panded and a little reflexed. Internal column with a thread- 

 like spiral ("columna interna filoso-torta " ) . Length 12, 

 diam. 2.66, aperture diam. 2.25 mm. (Pfr.). 



