SOUTH AFRICAN MARINE MOLLUSKS. 57 



The type, Cat. No. 249744, U.S.N.M., comes from Port Alfred 

 (Coll. No. 1016). It has five postnuclear whorls, and measures: 

 Length, 6.1 mm.; diameter, 3 mm. 



COLUMBELLA (SEMINELLA), species? 



Cat. No. 250474, U.S.N.M., contains a young specimen of an ap- 

 parently undescribed Seminella from Port Alfred (Coll. No. 1347). 



COLUMBELLA (ANACHIS) BECKERI Sowerby. 



Cat. No. 182029, U.S.N. M., one specimen from Port Alfred (Coll. 

 No. 565). 



COLUMBELLA (ANACHIS) ALGOENSIS Sowerby. 



Cat. No. 186696, U.S.N.M., one specimen from Port Alfred (Coll. 



No. 55). 



COLUMBELLA (ANACHIS) KRAUSSI Sowerby. 



Columbella kraussi Sowerby, Proc. Zool. Soc, p. 53, 1844 = Columbella (Anachis) 

 fulminea Gould, Proc. Boat. Soc. Nat. Hist., vol. 7, p. 334, 1860. 



Cat. No. 130, U.S.N.M., three specimens Gould's cotypes collected 

 by William Stimpson on the North Pacific Exploring Expedition at 

 the Cape of Good Hope; and Cat. No. 186698, U.S.N.M., six speci- 

 mens from Port Alfred (Coll. No. 57). 



COLUMBELLA (ANACHIS) IO, new species. 

 Plate 37, fig. 4. 



Shell elongate-conic, light brown, variegated with flesh color. 

 Nuclear whorls smooth, well rounded. Postnuclear whorls well 

 rounded, feebly shouldered at the summit, the first three marked by 

 a few ill-defined, broad, decidedly retractive axial ribs, the rest 

 smooth, excepting fines of growth and irregularly disposed, fine 

 spiral striations. Sutures moderately constricted. Periphery of the 

 last whorl well rounded. Base rather long, marked by lines of growth 

 and a few spiral striations. The columella bears seven lirations 

 which become successively weaker from the insertion to the pit. 

 Aperture moderately large. Posterior angle acute; outer lip thin. # 



The type, Cat. No. 250469, U.S.N.M., comes from Port Alfred (Coll. 

 No. 1342). It has five postnuclear whorls, and measures: Length, 

 6.5 mm.; diameter, 2.2 mm. 



COLUMBELLA (ANACHIS), species? 



Cat. No. 250471, U.S.N.M., contains a young shell from Port 

 Alfred, which we are unable to connect with any of the described 

 species (Coll. No. 1344). 



COLUMBELLA (ANACHIS), species? 



Cat. No. 249746, U.S.N.M., contains a young shell from Port 

 Alfred, which we are unable to connect with any of the described 

 species (Coll. No. 1018). 



