PROCEEDINGS OF THE NATIONAL MUSEUM. vou xxxiii. 



from Paraguay is the most extensive, and at the time it was made was 

 by far the most important collection from that region. But the 

 numerous new forms it contained when it was made have since been 

 described by Perugia, Boulenger, and Eigenmann from other 

 collections. 



A small but very interesting series is that which was made by 

 Michler and Schott in the Atrato Bai,'in. Inasmuch as the Atrato 

 River forms part of the probable route of migration of the eastern 

 fresh- water fishes to the Pacific slope everything from that part of 

 Colombia is of great interest. 



In preparing these notes use has also been made of the collections 

 of Indiana University, which include the following: 



1. A collection by H. von Ihering from Rio Grande do Sul, Brazil. 



2. A collection by H. von Ihering from Sao Paulo, Brazil. 



3. Duplicates of the collections of C. F. Hartt from the Amazon 

 Basin, Brazil. 



•i. Collections of the Indiana University Expedition to Guatemala. 



5. Various collections from the Paraguay Basin made by J. D, 

 Anisits. 



6. Duplicate specimens from the Mexican collections of S. E. Meek. 



7. Duplicate specimens from the Argentine collections of J. W. 

 Titcomb (1903-4). 



8. A collection from Trinidad, made by Mr. Lechmere Guppy, jr. 

 We have also examined the Princeton University collections made by 

 Prof. W. B. Scott in Buenos Aires, Argentina, and the collection 

 made by Mr. O. Riddle in Venezuela. 



The following new names appear in this paper: 



Gilbertolus 'Eigenmann (new name). 

 Evermannolus Eigenmann (new name). 

 Curimatus boulengeri Eigenmann (new name). 

 Ourimatns brevipes Eigenmann and Ogle. 

 Curimatus leuciscus holirue Eigenmann and Ogle. 

 Prochilodus beani Eigenmann. 

 Parodon Paraguay ensis Eigenmann. 

 Parodon piracicabu' Eigenmann. 

 Leporinus pane Eigenmann. 



Leporinu,s ■steindachneri Eigenmann (new name). 

 Cheirodon ribeirol Eigenmann. 

 Cheirodo)) ndcropterus Eigenmann. 

 OdontostUbe inicrocephalus P]igenmann. 

 Aphyocharax rathbuni Eigenmann. 

 Aphyocharax stramineus Eigenmann. 

 Holopristes riddlei Meek. 

 Hemiyrammus micropterus Meek. 

 Hemigrammus tridens Eigenmann. 

 Hemiyrammus boulengeri Eigenmann. 

 Hemigrammus anisUsi p]igenmann. 

 Hemigrammus santiv Eigenmann. 



