314 WEST SOUTH AMERICAN SHELLS — STEARNS. 



54. Parapholas acumiiaata Sby. 



Chatham Island, Galapagos. 



One valve, beach worn ; doubtfully referred to this species. 



55. Pholas (Barnea) pacifica Stearua. 



One valve. 



Payra. 



This species was described by me in the Proceedings of the Califor- 

 nia Academy of Sciences in 1873,* from specimens found living on the 

 east shore of San Francisco Bay. It is the west American analogue of 

 the east-coast P. truncata, which it much resembles. 



It is also reported from San Pedro, California, on good authority. 



Cla.ss GASTROPODA. 



56. Siphonaria costata Sby. 



A single example. 



Payta. 



57. Gadinia pentegoniostoma Sby, 



A single specimen. 



Manta. 



58. Bulla puuctulata A. Ad. 



Numerous specimens. 



Payta; Pacasmayo; Manta; Chathaui Island, Galapagos. 



Several specimens were obtained at the localities above named, but 

 only a siugle dead shell from Pacasmayo They all exhi bit character- 

 istics in commoa as well as certain differential aspects which warrant 

 the inclusions of B. aspersa A. Ad. as a synonym. B. puricfidaf a is cev- 

 taiuly very close if not identical with B. Aclamsl >Ike. of the Gulf of 

 California. 



59. Terebra (Myurella) aspera Hinds. 



One poor example. 



Payta. 



60. Terebra (Subula) strigata Sby. 



= B. elongaium Wood. 

 = T. Jlammea Lesson. 

 = T. zvbra Kieuer. 



Two Specimens. 



Payta. 



The National Museum contains an example from Cape St. Lucas 

 which gives the range of over 1,000 miles along the coast of the main- 

 land as compared with the previous published localities, which include 

 a reach of only 240 miles. It is also found at the Galapagos, accord- 

 ing to Cuming. 



* Preliminary description published iu August 28, 1871. 



