SOUTH AFRICAN MARINE MOLLUSKS. 3 



Family SPIRULIDAE. 



Genus SPIRULA Lamarck. 



SPIRULA PERONII Lamarck. 



Cat, No. 186647, U.S.N.M., one specimen from Port Alfred (Coll. 



No. 1). 



Class GASTROPODA. 



Order PTEEOPODA. 



Family CAVOLINIDAE. 



Genus CAVOLINA Abildgaard. 

 CAVOLINA LONGIROSTRIS Lesueur. 



Cat. No. 227808, U.S.N.M., two specimens from Port Alfred (Coll. 

 No. 903). 



CAVOLINA GLOBULOSA Rang. 



Cat. No. 250588, U.S.N.M., contains one specimen of this species 

 from Port Alfred (Coll. No. 1461). 



Genus STYLIOLA (Lesueur) Gray. 



STYLIOLA AFRICANA, new species. 

 Plate 34, fig. 4. 



Shell similar to Styliola virgula Rang, but in every way stouter and 

 considerably less curved. 



The type and another specimen, Cat. No. 249794, U.S.N.M., come 

 from Port Alfred (Coll. No. 1066). The type measures: Length, 4 

 mm.; diameter, 1.2 mm. 



Order TECTIBRANCHIATA. 



Family ACTEONIDAE. 

 Genus ACTEON Montfort. 



ACTEON ALBUS Sowerby. 



Cat. No. 186658, U.S.N.M., one specimen from Port Alfred (Coll. 



No. 13). 



Genus BULLINA Ferussae. 



BULLINA SCABRA Gmelin. 



Two specimens, Cat. Nos. 249798 and 250582, both from Port 

 Alfred, are in the collection of the United States National Museum 

 (Coll. Nos. 1070 and 1455). 



