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PATAGONIAN EXPEDITIONS: ZOOLOGY. 



HEMIBRYCON Giinther. 



Type : Hcmibrycon polyodon Gunther. 

 Range: Peru; Ecuador; Trinidad. 



1. Hemibrycon guppii (Regan). 



Habitat: Trinidad. 



2. Hemibrycon taniurus (Gill). 



Habitat : Trinidad. 

 A3. Hemibrycon jelskii (Steindachner). 



Habitat: Peru. 

 4. Hemibrycon polyodon Gunther. 



Hemibrycon huambonicus (Steindach- 

 ner). 



Habitat: Western Ecuador and Peru. 

 AS. Hemibrycon ipattguianus (Cope). 



Habitat : Ucayale. 



PSEUDOCHALCEUS Kner. 



Type : Pseudochalceus lineatus Kner. 

 Range: Western Ecuador and Rio 



Grande do Sul. 

 i. Pseudochalceus lineatus Kner. 



Habitat: Western slopes of Ecuador. 



HOLLANDICHTHYS Eigenmann. 



Type : Tetragonopterus multifasciatus 



E. & N. 



I. Hollandichthys multifasciatus (Eigen- 

 mann & Norris). 



Pseudochalceus perstriatus Ribeiro ; 

 Pseudochalceus affinis Steindachner. 



Habitat: Cubatao. 



ASTYANAX Baird & Girard. 



Pcccilurichthys Gill. 



Type: Astyanax argentatus Baird & 



Girard. 

 Range : All streams of the eastern slope 



of South America north of Buenos 



Aires. Pacific slope of Central 



America and Mexico. 



(PCECILURICHTHYS Gill). 



(Type: P. brevoortii Gill). 

 I. Astyanax poly le pis (Gunther). 



Habitat: Guiana. 



2. A styanax eryth ropterus (Holmberg). 



Habitat : La Plata Basin. 



3. Astyanax pellegrini Eigenmann. 



Habitat: Paraguay. 



4. Astyanax correntinus (Holmberg). 



Habitat: Parana. 

 AS. Astyanax riveti Pellegrin. 



Habitat : Rio Pove, Ecuador. 

 6. Astyanax festae (Boulenger). 



Habitat: Western Ecuador. 

 A 7. Astyanax brevirostris (Gunther). 



Tetragonopterus branckii Steindachner. 

 Habitat : Ecuador and Peru. 

 A8. Astyanax asymmetricus Eigenmann. 



Habitat : Tabatinga. 

 AQ. Astyanax symmetricus Eigenmann. 



Habitat : Tabatinga. 

 Aio. Astyanax sonatus Eigenmann. 



Habitat : Tabatinga. 

 ii. Astyanax cordova (Gunther). 



Habitat: Argentina. 

 Ai2. Astyanax anterior Eigenmann. 



Habitat : Tabatinga. 

 A 1 3. Astyanax bourgeti Eigenmann. 



Habitat : Tabatinga. 

 14. Astyanax abramoides Eigenmann. 



Habitat : Guiana. 

 AiS. Astyanax abramis (Jenyns). 

 Habitat: Orinoco to La Plata. 

 Ai6. Astyanax bimaculatus (Linnaeus). 



Albula maculata Linnaeus; Tetragonop- 

 terus linncei, orbignianus, gronovii 

 Cuvier & Valenciennes; Patcilur- 

 ichthys brevoortii Gill ; T. bart- 

 lettii Gunther; T. orientalis Cope; T. 

 microstoma Hensel; T. obscurus 

 Hensel ; T. caudimaculatus Cope, and 

 ? jacuhiensis Cope. 



Habitat: All streams from the Rio 

 Bayano south to the La Plata and 

 east of the Andes. 



17. Astyanax bimaculatus borealis Eigen- 

 mann 

 Habitat: Magdalena Basin. 



