42 BULLETIN 91, UNITED STATES NATIONAL MUSEUM. 



inward as fine lirations; columella reenforced with a strong callus, 

 which is provided with oblique folds; of these, the first, which is a 

 little weaker than the next, marks the anterior border; the second 

 is stronger than all the rest; the nine succeeding folds are progressively 

 weaker and become closer spaced from the second fold posteriorly. 



Two specimens of this species, Cat. No. 249672, U.S.N.M., come 

 from Port Alfred (Coll. No. 944). One of these, the type, measures: 

 Length, 5.4 mm.; diameter, 3.2 mm. 



MARGINELLA ZEYHERI Krauss. 



Four lots of this species are in the collection of the United States 

 National Museum; three of these came from Port Alfred. Cat. No. 

 186717, six specimens (Coll. No. 76); Cat. No. 186714, two specimens 

 (Coll. No. 73); Cat. No. 250334, three specimens (Coll. No. 1207); 

 Cat. No. 102727, one specimen from the Cape of Good Hope. 



MARGINELLA, species? 



Cat. No. 250343, U.S.N.M., contains two young specimens of Margi- 

 nella, from Port Alfred (Coll. No. 1216). They are too young to be 

 positively determined. 



Cat. No. 250330, U.S.N.M., contains one young specimen of Margi- 

 nella, too young to be properly placed, from Port Alfred (Coll. No. 

 1203). 



Cat. No. 250480, U.S.N.M., contains a young Marginella from 

 Port Alfred, also too young to be properly placed (Coll. No. 1353). 



Family VOLUTIDAE. 

 Genus VOLUTA Linnaeus 



VOLUTA AFRICANA Reeve. 



Cat. No. 186728, U.S.N.M., one from Port Alfred (Coll. No. 87). 



VOLUTA (CALLIPARA) BULLATA Swainson. 



Cat. No. 249663, U.S.N.M., contains a badly worn specimen of this 

 species from Port Alfred (Coll. No. 935). 



Family TURBINELLIDAE. 



Genus XANCUS Bolten. 



XANCUS GLOBULUS Chemnitz. 



Cat. No. 124677, U.S.N.M., one from Cape of Good Hope. 



XANCUS TRUNCATUS Sowerby. 



Cat. No. 186979, U.S.N.M., a young specimen from Port Alfred 

 (Coll. No. 511). 



