70NITES. 175 



impressed strku, corneous, suture impressed; whorls 4, slowly 

 increasing, base smoother. Diam. 2 mill. 



Guatemala. 

 II. CASSIQUIENSIS, Newcomb. PI. 53, fig. 53. 



Subperforate, faintly striated, brownish corneous ; whorls 5 J, a 

 little convex, slowly increasing, periphery an gul a ted, base a little 

 convex, light!}' concentrically striated. Diam. 4 mill. 



Cassiquia. Demerara. 

 II. QUITENSIS, Pfr. PL 53, fig. 54. 



Subperforate, thin, smooth, pellucid, yellowish hyaline, suture 

 deep ; whorls 5, convex, slowly increasing, base a little convex. 



Diam. 1 mill. 



Quito, Equador. 

 II. SEMENLINI, Moricand. PL 53, figs. 55, 56. 



I m perforate, thin, smooth, pellucid, yellowish corneous, suture 

 impressed ; whorls scarcety 5, somewhat flattened, the last not 

 descending, periphery obsoletely angulated, base scarcely more 

 convex, very minutely spirally striated, columella subcallous 

 above. Diam, 3-3 mill. 



Brazil. 

 II. PARAGUAYANA, Pfr. PL 53, fig. 57. 



Perforate, orbicular, smooth, thin, diaphanous, amber-colored; 

 whorls 6, aperture rounded, semilunar. Diam. 5 mill. 



Paraguay. 

 It is H. elevata, d'Orb, non Say. 



II. MARTINEZI, Hidalgo. PL 53, fig. 58. 



Minutely perforate, thin, hyaline, lightly, very minutely decus- 

 sated, orange corneous, somewhat lighter below, suture thivad- 

 margined ; whorls 5, a little convex, the last obtusely angulated 

 at the periphery, not descending in front. Diam. 3*25 mill. 



Bahia, Brazil. 



Differs from the preceding species in being decussated and 

 having a margined suture. 



Unfigured Species. 



H. FULVOIDEA, More-let. Ins. Carmen. 



II. WOLFII, Miller. Guayaquil. 



H. ABSCONDITA, Phil. Valdivia, Chili. 



H. OMISSA, Pfr. Ins. Juan Fernandez. 



