430 



PATA(>oNi.\x expeditions: zoology. 



Subfamily Crenuchin^. 



Crenuchus Giinther. 



Type: Crenuchus s/^ilurus Giinther. 

 Range that of the single species. 

 A I. Crenuchus spilurus Giinther. 



Habitat : Amazons and Guiana. 



Pa-:cii.orn.\K,\x Eigenmann. 

 Type: Pa-cilochixriix bovallii ICigen- 



mann. 

 Range that of the single species. 

 Paxilochivax hovallii Eigenmann. 

 Habitat : Kaieteur, Potaro River. 



.Subfamily Igu.\NODECTIN^. 



Igu.axodectes Cope. 

 Type : I guanodectes tenuis Cope. 

 Range that of the single species. 



A I. I guanodectes tenuis Cope. 

 Habitat: Ambyiacu. 



Subfamily Tetragonopterin.E. 



Henochilus Garman. 

 Type: Henochilus wheatlandi Garman. 

 Range that of the single species. 



1. Henochilus wheatlandi Garman. 



Habitat: Southeastern Brazil. 



Bkvcox Miiller Sr Tnjschel. 

 Bryconodon l-'igLMiniann. 'rvinyohyycon 

 Eigenmann. 

 T\'pc : Ih-ycoH jalcatus Miiller & Tro- 



schel. 

 Range: La Plata to Guatemala in all 

 streams; western Peru, Ecuador and 

 Panama. 

 (Ch.m.cinopsis Kner. ) 



(Ty])e: Chalcinopsis striatiilus Knor. ) 

 A I. Brycon striatulus (Kner). 



Chalcinopsis chagrensis Kner. 

 Habitat : Ecuador to Panama. 



2. Brycon guatemalensis Regan. 



Habitat: Central America. 



3. Brycon rubricanda Steindachner. 



Habitat: Cauca. 



4. Brycon albumus (Giinther). 



Habitat: Western Ecuador. 



5. Brycon dentex Giinther. 



Habitat: Western Ecuador to Guate- 

 mala. 

 ( Megalobrycon Giinther. ) 



(Type: Megalobrycon ccphalns Giin- 

 ther.) 

 6. Brycon microlepis Perugia. 



Habitat: Upper Paraguay Basin. 

 A 7. Brycon ccphalus (Gunther). 



Habitat: Peru\ian Amazon. 

 A.S. Brycon erythropterus (Cope). 



Habitat: Ambyiacu. 

 9. Brycon jerox Steindachner. 



Habitat: Rio Mucuri. 

 Aid. Brycon melanopterus (Cope). 



Habitat : Amazons. 

 II. Brycon devillei (Castelnau). 



Brycon insiguis Steindachner. 



Habitat: Southeastern Brazil. 



(Brycon Miiller & Troschel.) 

 .\i2. Brycon hilarii (Cuvier & Valen- 

 ciennes).- 



Habitat: Salinas; Paraguay; Rio San 

 Francisco; Amazon. 



13. Brycon carpopliagus (Cuvier & Valen- 



ciennes) . 

 Habitat: Minas Geraes. 



14. Brycon lineatus Steindachner. 



Habitat: La Plata. 

 .\i5. Brycon sti'ibelli Steindachner. 



Habitat: Amazons. 

 A 1 6. Brycon brevicaudus Giinther. 



Habitat: Amazon Basin. 



