TK1XOSTO.MA. 105 



T. SOLIDUM, E. A. Smith. PL 35, fig. 68. 



Shell solid, small, light fulvous, smooth ; whorls 4, rapidly increas- 

 ing, the last smooth above, base flattened, with three exterior spiral 

 sulci, umbilical region callous ; peristome receding at the base. 



Diam. 3'3 mill. Whijdah, W. Africa. 



Unfigured Species. 



T. CARBONNIERI, T. DESCHAMPSI, T. RHINOCERAS, Jousseaume. 



Aden. 



Section CALCEOLINA, A. Ad. 1863. 

 T. PUSILLUM, C. B. Ad. PL 35, figs. 69, 70. 



Orbicular-depressed, very minutely striated, suture impressed, 

 last whorl large, aperture widely lunate, columellar lip septiform, 

 with straight margin, whence a wide callus spreads over the umbili- 

 cus. Diam. 1*5 mill. 



Jamaica, Japan (A. Adams). 



This species, figured from Japanese specimens, is said by A. 

 Adams to be identical with the above named Jamaica species; I 

 have no means of verifying this. T. anomalwn, H. and A. Adams is 

 a synonym. 



Subgenus PSEUI>OROTELLA, Fischer, 1857. 



T. SEMISTRIATA, d'Orb. PL 35, figs. 71-73. 



Orbicularly depressed, thin, diaphanous whitish, closely, minutely 

 spirally striate above, smooth below, with a somewhat flat, shining, 

 transparent umbilical callus; whorls 4, slightly convex, slowly in- 

 creasing, peristome thickened. Diam. 1*5 mill. 



Cuba. 



Subgenus DISCOPSIS, Folin, 1869. 



T. OMALOS, Folin. PL 35, fig. 74. 



Shell much depressed, disk-like, thin, diaphanous, vitreous, shin- 

 ing, almost plane above ; whorls 3, rapidly increasing, the last whorl 

 spirally tri-lirate, widely cristate at the periphery, base slightly con- 

 vex, umbilicated, aperture large, oblique, subtriangular, peristome 

 acute, left margin a little reflected, separating into a thickened 

 tongue-like projection at the base. Diam. 1*7 mill. 



Pointe a Pitre, Guadeloupe, W. I. 



