Indiana University Studies 



No. 20 BLOOMINGTON, INDIANA March 15, 1914 



Prefatory Note 



The present study is a continuation of 'Indiana University 

 Studies/ No. 16, 18, and 19. It presents results obtained from a 

 study of extensive collections of fishes from South America. These 

 collections belong in jjart to Harvard University, and v^ere made 

 by Louis Agassiz in Brazil; in part they were made by Dr. John 

 Haseman, and belong to the Carnegie Museum of Pittsburgh. The 

 more important of the results are based on various collections made 

 in Colombia and Ecuador by Prof. Eigenmann, and under his dire 3- 

 tion with the co-operation of Mr. Hugh McK. Landon by Manuel 

 Gonzales, Charles Wilson, and Arthur Henn. 



