70 BULLETIN 91, UNITED STATES NATIONAL MUSEUM. 



middle; inner lip somewhat sinuous, reflected over and adnate to the 

 preceding turn; parietal wall covered with a moderately thick callus, 

 which renders the peritreme complete. 



The type, Cat. No. 249710, U.S.N.M., comes from Port Alfred (Coll. 

 No. 982). It has seven postnuclear whorls (having lost the nuclear 

 turns), and measures: Length, 5.5 mm.; diameter, 1.6 mm. 



Genus SUBEULIMA Sowerby. 



SUBEULIMA MAGNIFICA, new species. 



Plate 19, fig. 6. 



Shell elongate-conic, vitreous, semi translucent ; nuclear whorls 

 well rounded, scarcely differentiated from the succeeding turns. Post- 

 nuclear whorls almost flattened, marked with a strong cord at the 

 periphery, the summit of the succeeding turns falling considerably 

 anterior to this cord, which gives the whorls a decidedly overhanging 

 appearance. In addition to this spiral sculpture the whorls are 

 marked by ill-defined, irregularly distributed varices. Sutures 

 rendered conspicuous by the peripheral keel. Base of the last whorl 

 well rounded, somewhat produced, smooth. Aperture oval; pos- 

 terior angle acute, outer lip moderately thick; inner lip strongly 

 curved and appressed to the base; parietal wall covered with a thick 

 callus, which renders the peritreme complete. 



The type and two specimens, Cat. No. 227729 (Coll. No. 824) are 

 from Port Alfred. The type has nine postnuclear whorls, and 

 measures: Length, 5 mm.; diameter, 1.5 mm. 



Genus NISO Risso. 



NISO BALTEATA Sowerby. 



Cat. No. 186860, U.S.N.M., contains two specimens from Port 

 Alfred (Coll. No. 230). 



NISO ALFREDENSIS, new species. 



Plate 18, fig. 6. 



Shell elongate-conic, broadly umbilicated, flesh colored, except 

 irregularly disposed varices of chestnut brown and a broad band of 

 the same tint, which occupies the middle of the space between the 

 periphery and the carina, bordering the umbilicus. Nuclear whorls 

 decollated. Post-nuclear whorls moderately rounded, appressed at 

 the summit, marked by fine fines of growth only. Sutures moder- 

 ately constricted. Periphery of the last whorl feebly angulated. 

 Base short, broadly umbilicated, the outer edge of the umbilicus 

 marked by a spiral cord; the space between this and the periphery 

 well rounded. Aperture small, oval; outer lip thin; inner lip strongly 

 curved, marked by the basal band. 



