204 BULLETIN 91, UNITED STATES NATIONAL MUSEUM. 



The type and another specimen, Cat. No. 186939, U.S.N.M., 

 come from Port Alfred (Coll. No. 309). The type measures : Altitude, 

 25 mm.; length, 31 mm. 



Cat. No. 251022, U.S.N.M., contains two additional valves from 

 the same locality (Coll. No. 1539). 



Genus ANTIGONA Schumacher. 



ANTIGONA VERRUCOSA Linnaeus. 



Cat. No. 98233, U.S.N.M., one specimen from Port Elizabeth. 

 Cat. No. 186937, U.S.N.M., two specimens from Port Alfred (Coll. 

 No. 307). 



ANTIGONA (?), species ? 



Cat. No. 187194, U.S.N.M., seven valves, from Port Alfred (Coll. 

 No. 745), nepionic shells of this genus too young to be specifically 

 determined with the material at hand. 



Genus PAPHIA Bolten. 



PAPHIA DISRUPTA Sowerby. 



The United States National Museum has three lots of this species 

 from the Cape of Good Hope, as follows: Cat. No. 17645, three 

 specimens; Cat. No. 32034, five specimens; Cat. No. 76484, three 

 specimens. In addition to this there are three specimens from 

 Albany, Cat. No. 98048, and three additional lots from Port Alfred, 

 as follows: Cat. No. 186942, one specimen (Coll. No. 312); Cat. No. 

 251023, one specimen (Coll. No. 1540); Cat. No. 251024, one specimen 

 (Coll. No. 1541). 



Genus VENERUPIS Lamarck. 



VENERUPIS, species ? 



The United States National Museum contains two lots of Venerupis, 

 which are too poor to be specifically determined, all from Port Alfred, 

 as follows: Cat, No. 187172, one specimen (Coll. No. 721); Cat. No. 

 251026, one valve (Coll. No. 1543). 



Family PETRICOLIDAE. 



Genus PETRICOLA Lamarck. 



PETRICOLA PONSONBYI Sowerby. 



Cat. No. 32034a, U.S.N.M., one specimen from the Cape of Good 

 Hope. Cat. No. 98042, U.S.N.M., two specimens from Albany. 

 Cat. No. 186943, U.S.N.M., two specimens from Port Alfred (Coll. 

 No. 313). Cat. No. 187188, U.S.N.M., one specimen from the same 

 locality (Coll. No. 739). 



PETRICOLA, species ? 



Cat. No. 187182, U.S.N.M., a valve of a specimen too young to be 

 determined positively, from Port Alfred (Coll. No. 733). 



