THE FISHES OF THE WEST COAST OF PERU AND 

 THE TITICACA BASIN. 



By Barton Warren Evermann, 

 Director, Museum of the California Academy of Sciences, 



and 



Lewis Radcliffe, 

 Assistant, United States Bureau, of Fisheries. 



INTRODUCTION. 



While engaged in 1907 and 1908 under the auspices of the Peru- 

 vian Government in an investigation of the fisheries and fishery 

 resources of Peru, Dr. Robert E. Coker embraced the opportunity to 

 make collections of the fishes inhabiting the streams and coastal 

 waters of that country. 



The principal localities in which collections were made are Ancon, 

 Eten, Callao, Capon, Chimbote, Chincha Island, Guanape North 

 Island, Lake Titicaca, Lima market, Lobos de Afuera, Lobos de 

 Tierra, Mollendo, Pacasmayo, Paita, Rimac River, Santa Rosa 

 Island, Tumbes and Tumbes River, and Ballestas Island. The 

 largest number of species (28) was obtained at Lobos de Afuera. 



These collections were turned over to the present writers for study 

 and the preparation of a report thereqn. They represent, in the 

 aggregate, the largest and most important collection of fishes ever 

 obtained in those waters. The total number of specimens somewhat 

 exceeds 500. The number of species represented is 120, of which 12 

 appear to be new. 



In the present report the authors have included not only the species 

 represented in Doctor Coker's collections, but all others previously 

 actually recorded from the Pacific coast and drainage of Peru and 

 from the Titicaca Basin. This brings the total number of species 

 known from Peruvian waters to 187. 



Through the generosity of the Peruvian Government the authors 

 are able to include illustrations from original drawings of 40 of 

 the species. 



The collections are now deposited in the United States National 

 Museum. The original drawings were made by Mr. Kako Morita 

 and Miss Violet Dandridge. 



