152 UROCOPTIS OF HAITI. 



stome reflexed, its upper margin wholly adnate to the preced- 

 ing whorl. Internal axis a moderately twisted, tapering col- 

 umn; within the right side and back of the last whorl it is 

 encircled by a rather strong, obtuse lamella. 



Length 15.5, diam. 5 mm. ; whorls 8%. 



Length 15.5, diam. 5.5 mm. ; whorls 7%. 



Length 19, diam. 6 mm. ; whorls 9. Puncturata. 



Length 20, diam. 6.2 mm. ; whorls 8%. Puncturata. 



Haiti: Charcas, in the Dominican Republic (Salle) ; Bar- 

 rera, in the same portion (Salle, C. puncturata). 



Cyl. adamsiana PFR., P. Z. S., 1851, p. 148; Monogr., iii, 

 p. 566 ; Conchyl. Cab., p. 11, pi. 2, f . 4-6. SOWERBY, Conch. 

 Icon., xx, pi. 2, f. 16. CROSSED Journ. de Conchyl., 1891, p. 

 140, pi. 4, f . 3. Cyl. puncturata PFR., P. Z. S., 1852, p. 141 ; 

 Conchyl. Cab., p. 12, pi. 2, f . 7-9 ; Monogr., iii, p. 567. SOWB., 

 C. Icon., xx, pi. 3, f. 24. CROSSE, J. de C., 1891, p. 141, pi. 4, 

 f. 4. 



Readily known by its adnate peristome, punctured surface, 

 white-beaded suture and small size. Pfeiffer's C. puncturata 

 has no distinguishing character except slightly greater size, 

 the type measuring 18 mm. long, 6% wide, with 9 whorls, 

 while the original measurements of adamsiana were 14 to 

 15% mm - l n g> 5 mm. wide, with 8 to 9 whorls. The speci- 

 mens before me show no differences except in size. 



27. U. MALLEATA (Pfeiffer) . PL 40, figs. 39, 40, 41, 47; pi. 

 41, fig. 59 ; pi. 38, figs. 8, 9, 10, 11. 



Shell cylindric, the upper third or fourth tapering to the 

 narrow, concave truncation, the plug long and tongue-shaped. 

 Surface glossy, white, uniform or sparsely variegated with 

 fleshy- or corneous-brown streaks, sculptured with regular, 

 fine striae on the terminal cone, with minute pits on the cylin- 

 drical portion, passing into striae again towards the base of 

 the last whorl. Whorls 9-10, but slightly convex, weakly 

 crenate below the suture, the last whorl having a cord-like keel 

 at the base, hardly free in front. Aperture rounded, chan- 

 nelled within at the position of the keel; peristome well re- 

 flexed, continuous and free. Internal column (pi. 41, fig. 59) 



