MARINE MOLLUSKS OF THE GALAPAGOS 139 



Localities: Albemarle Island, Loc. 27221 (C.A.S.), 16 specimens; 

 Tower Island, Loc. 27231 (C.A.S.), 18 specimens; Indefatigable Island, 

 Loc. 27232 (C.A.S.), 16 specimens. 



Hipponix pilosus (Deshayes) 

 Localities: Albemarle Island, Loc. 27221 (C.A.S.), 40 specimens; 

 Chatham Island, Loc. 27227 (C.A.S.), 4 specimens; Tower Island, Loc. 

 27231 (C.A.S.), 25 specimens; Indefatigable Island, Loc. 27232 

 (C.A.S.), 75 specimens. 



Family Crepidulidae 



Crepidula aculeata (Gmelin) 

 Localities: Albemarle Island, Loc. 27221 (C.A.S.), 25 specimens; 

 South Seymour Island, Loc. 27255 A (C.A.S.), 4 specimens. 



Crepidula arenata (Broderip) 

 Locality: Albemarle Island, Loc. 27221 (C.A.S.), 11 specimens. 



Crepidula onyx Sowerby 

 Locality: Albemarle Island, Loc. 27221 (C.A.S.), 1 specimen. 



Family Calyptraeidae 



Crucibulum imbricatum (Sowerby) 

 Locality: Indefatigable Island, Loc. 27232 (C.A.S.), 1 specimen. 



Cheilea equestris (Linnaeus) 

 Plate A, Figs. 4, 5 



Localities: Albemarle Island, Loc. 27221 (C.A.S.), 36 specimens; 

 Chatham Island, Loc. 27227 (C.A.S.), 10 specimens; Tower Island, 

 Loc. 27231 (C.A.S.), 2 specimens; Indefatigable Island, Loc. 27232 

 (C.A.S.), 40 specimens; South Seymour Island, Loc. 27255A (C.A.S.), 

 1 specimen. 



Family Naticidae 



Polinices caprae (Philippi) 

 Locality: Albemarle Island, Loc. 27221 (C.A.S.), 1 specimen. 



