MARINE IMOLLUSKS OF THE GALAPAGOS 127 



Clathurella trie h odes (Dall) 



Localities: Albemarle Island, Loc. 27221 (C.A.S.)> 1 specimen; 

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



Mangelia melanostieta Pilsbry & Lowe 



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

 Tower Island, Loc. 27231 (C.A.S.), 30 specimens. 



Daphnella thalia Schwengel 



Daphnella thalia Schwengel, Proc. Acad. Nat. Sci. Philadelphia, Vol. 

 90, p. 2, fig. 2, May 13, 1938. From "Wreck Bay, Chatham Island." 



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



A single specimen, somewhat worn, appears to be referable to this 

 species. 



Family Cancellariidae 



Cancellaria haemastoma Sowerby 

 Locality: Albemarle Island, Loc. 27221 (C.A.S.), 8 specimens. 



Family Olividae 



Olivella graeilis (Broderip & Sowerby) 



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

 Indefatigable Island, Loc. 27232 (C.A.S.), 6 specimens. 



Family Marginellidae 



]\Iarginella (Hyalina) ealiforniea Tomlin 



Localities: Albemarle Island, Loc. 27221 (C.A.S.), 15 specimens; 

 Indefatigable Island, Loc. 27232 (C.A.S.), 10 specimens. 



Marginella (Persieula) phrygia Sowerby 

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



Marginella (Cystiseus) minor C. B. Adams 



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

 Indefatigable Island, Loc. 27232 (C.A.S.), 15 specimens. 



