MARINE MOLLUSKS OF THE GALAPAGOS 135 



This is a cosmopolitan species occurring in warm marine water in 

 widely separated regions. Our record (1939, p. 370) of the occurrence 

 of Cymatium wiegmanni (Anton) in the Pleistocene of James Island is 

 referable to C. costatum. However, Anton's species has been recorded by 

 Schwengel (1938, p. 1) as occurring in the Recent fauna at Chatham 

 Island. 



Cymatium lineatum (Broderip) 

 Plate A, Fig. 18 

 Locality: Albemarle Island, Loc. 27221 (C.A.S.), 2 specimens. 



Cymatium vestitum (Hinds) 

 Locality: Tower Island, Loc. 27231 (C.A.S.), 1 specimen. 



Phyllocoma scalariformis (Broderip) 

 Locality: Albemarle Island, Loc, 27221 (C.A.S.), 3 specimens. 



Family Triphoridae 



Triphora galapagensis Bartsch 



Localities: Albemarle Island, Loc. 27221 (C.A.S.), 100 specimens; 

 Tower Island, Loc. 27231 (C.A.S.), 1 specimen; Indefatigable Island, 

 Loc. 27232 (C.A.S.), 11 specimens. 



Family Cerithiopsiidae 



Cerithiopsis curtata Bartsch 



Localities: Albemarle Island, Loc. 27221 (C.A.S.), 3 specimens; 

 Tower Island, Loc. 27231 (C.A.S.), 5 specimens. 



Cerithiopsis eiseni Strong & Hertlein 

 Locality: Tower Island, Loc. 27231 (C.A.S.), 2 specimens. 



Cerithiopsis sp. 

 Locality: Tower Island, Loc. 27231 (C.A.S.), 1 specimen. 



Cerithiopsis sp. 

 Localities: Albemarle Island, Loc. 27221 (C.A.S.), 3 specimens; 

 Indefatigable Island, Loc. 27232 (C.A.S.), 3 specimens. 



