oc^c^ ^r/O'^^' 



i909 



J. PIERPONT MORGAN PUBLICATION FUND 



Reports of 



The Princeton University Expeditions 

 to Patagonia, 1896- 1899 



J. B. HATCHER, m Charge 



EDITED BV 



WILLIAM B. SCOTT 



BI.AIR PROFESSOR OF GEOI.OGY AND FAL.«ONTOLOGY, PRINCETON UNIVERSITY 



VOLUME III 



ZOOLOGY 



- Part IL Datrachiaims and RbP ' i ' im s 



-BT- 



^ 



' L. STEJNEGER 



U. S. NATIONAL MUSEUM 



Part III. The Fresh Water Fishes of Patagonia and an Examination 

 OF the Archiplata-Archhelenis Theory 



HY 



C. EIGENMANN 



INDIANA UNIVERSITY 



(Pp. 225-374. Pis. XXX-XXXVII) 



PRINCETON, N. J. 



The University 



STUTTGART 



E. Schweizerbart'sche Verlagshandlung (E. Nagelb) 



1909 



