56 BULLETIN 91, UNITED STATES NATIONAL MUSEUM. 



smaller than that species and has a channeled suture. The specimen 

 before me received an injury during its youth and I am not sure but 

 that the dwarfing and the channeling of the suture may be due to 

 that cause. I therefore refrain from bestowing a name upon it. 

 (Coll. No. 1317.) 



BULLIA LAEVISSIMA Gmelin. 



Cat. No. 172, U.S.N.M., three collected by William Stimpson on 

 the North Pacific Exploring Expedition at Simons Bay. Cat. No. 

 16821, U.S.N.M., one from Cape of Good Hope. Cat. No. 16822, 

 U.S.N.M., one from same locality. Cat. No. 186765, U.S.N.M., one 

 from Port Alfred (Coll. No. 126). 



Family COLUMBELLIDAE. 

 Genus COLUMBELLA Lamarck. 



COLUMBELLA (SEMINELLA) LIGHTFOOTI Smith. 



Cat. No. 186694, U.S.N.M., seven specimens from Port Alfred 

 (Coll. No. 53). Cat. No. 227751, U.S.N.M., eight specimens from 

 the same locality (Coll. No. 846). Cat. No. 227752, U.S.N.M., four 

 specimens from the same source (Coll. No. 847). 



COLUMBELLA (SEMINELLA) CAPENSIS Smith. 



Six lots of this species, all from Port Alfred, are in the collection of 

 the United States National Museum. Cat. No. 187031, 24 specimens 

 (Coll. No. 567). Cat. No. 227747, six specimens (Coll. No. 842). 

 Cat. No. 227748, four specimens (Coll. No. 843). Cat. No. 227749, 

 four specimens (Coll. No. 844). Cat. No. 227750, four specimens 

 (Coll. No. 845). Cat. No. 250475, one specimen (Coll. No. 1348). 



COLUMBELLA (SEMINELLA) ALFREDENSIS, new species. 

 Plate 37, fig. 5. 



Shell small, elongate-ovate; flesh colored, with fairly equally dis- 

 tributed, decidedly, retractively slanting, brownish streaks on the 

 middle of the whorls between the sutures and a few interrupted spiral 

 lines of brown on the base. Nuclear whorls two, smooth. Post- 

 nuclear whorls strongly shouldered at the summit, marked by very 

 strong, rounded, decidedly protractive axial ribs, which are about 

 as wide as the spaces that separate them. These ribs extend prom- 

 inently from the summit to the suture. On the last whorl they 

 become evanescent on the base. Spiral sculpture apparently absent. 

 Periphery of the last whorl well rounded. Columella marked by two 

 feebly developed spiral cords at its insertion. Aperture moderately 

 large, channeled at the posterior angle and decidedly so anteriorly; 

 middle of the outer lip drawn forward into a claw-like element; 

 parietal wall and the inner edge of the columella glazed with a mod- 

 erately thick callus. 



