October 23, 1914] 



SCIENCE 



603 



of the U. S. Bureau of Fisheries. They spent 

 the winters of 1910 and 1911 in the field, but 

 their results remain largely unpublished. 



In December, 1911, Professor Eigenmann 

 left for Colombia with the principal object of 

 investigating the faunas of the Atrato and 

 San Juan Eivers, south of Panama. These 

 rivers flow in opposite directions in a longi- 

 tudinal trough west of the Western Cordilleras 

 and the height of the divide between them does 

 not much exceed 300 feet. Other points were 

 the relation of the faunas of the Atrato and 

 the Magdalena, which seemingly possess no 

 obstacles to inter-migration, and the relation- 

 ship existing between the faunas of the upper 

 Cauca and the upper Magdalena, separated as 

 they are by the high Central Cordilleras. Dr. 

 Eigenmann landed at Cartagena and proceeded 

 thence by river steamer and rail up the Magda- 

 lena, collecting en route at Puerto Wilches, 

 Penas Blancas, Honda and Girardot, thence 

 to the high plateau of Bogota, where a large 

 collection was made of all fishes occurring 

 there, including the supposedly mutating 

 " capitan " (Eremophilus mutisii) . He then 

 proceeded by pack-train from Girardot through 

 Ibague and Toche, crossing the Central Cor- 

 dilleras over the Quindio pass, descending 

 thence to the Cauca at Cartage, from which 

 point he continued by pack-train to Cali, col- 

 lecting on the way. "With more pack mules 

 the Western Cordilleras were crossed to Caldas ; 

 from here collections were made at successively 

 lower elevations on the River Dagua to the 

 coast at Buenaventura. From this point a 

 steamer carried the expedition up the San 

 Juan to the head of navigation at Puerto 

 Negria, thence a dugout continued on to 

 Istmina. The low continental divide was 

 crossed here to the Atrato; he went then by 

 steamer to Cartagena. Collections were made 

 at various points along these rivers. Dr. 

 Eigenmann returned to the university in the 

 middle of April, 1912. The expenses of this 

 expedition were assumed by the Carnegie Mu- 

 seum of Pittsburgh, to which belongs the first 

 series of the fishes collected; the second series 

 remains at Indiana University. 



Since his return, Mr. Manuel Gonzalez, a 



Colombian, who accompanied him on part of 

 the trip, has been employed by the university 

 to continue collecting about Bogota and to the 

 eastward in the headwaters of the Orinoco. 



Mr. Charles E. Wilson, an Indiana Univer- 

 sity student, left in December, 1912, for 

 Tumaco, the most southerly port of Colombia 

 on the Pacific. He spent about a month col- 

 lecting in coastal streams and above Barbacoas 

 in the Telembi, a tributary of the Patia. He 

 then continued northward to Buenaventura, 

 returning over the San Juan-Atrato route, 

 collecting at various points in both of these 

 rivers and in the Truando, one of the prin- 

 cipal tributaries of the Atrato. He returned 

 to the university in April, 1913. His expenses 

 were paid by Mr. H. McK Landon and Mr. 

 Carl G. Fisher, both of Indianapolis. 



Mr. Arthur W. Henn, another student of 

 the university, had been with Mr. Wilson on 

 the Telembi when both were forced to return 

 to Tumaco with fever. When recovered Mr. 

 Henn returned to Barbacoas by small steamer 

 and then went by pack-train to Tuquerres, 

 situated in the Western Cordilleras at an ele- 

 vation of over 10,000 feet. From here, after 

 some delay, he continued northward with an- 

 other specially engaged pack-train to the gorge 

 of the Patia, where this mighty stream has 

 cloven a majestic canyon through the Western 

 Cordilleras. The route followed here was in 

 general that followed by the geologist A. Stiibel 

 through Ancuya, Tambo and Penol. The gorge 

 was reached at the mouth of the Guaitara. 

 The expedition continued back through Pasto 

 and Tuquerres to Barbacoas and Tumaco. Mr. 

 Henn sailed then for Buenaventura, continued 

 to Puerto ISTegria by small steamer, and re- 

 turned by canoe to the lower San Juan, espe- 

 cially for work in the Calima, which he 

 ascended for three days, returning overland to 

 Buenaventura. Instructions had meanwhile 

 been received from Dean Eigenmann directing 

 the work to Ecuador. 



Mr. Henn sailed southward to Guayaquil, 

 where he arrived in May. A short trip was 

 taken to Naranjito, where collecting was done 

 in the River Chan Chan. He then went to 

 Manabi, entering at Bahia, fishing at Ohone 



