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PATAGONIAN EXPEDITIONS : ZOOLOGY. 



Hemibrycon Giinther. 



Type: Hemibrycon polyodon Giinther. 



Range: Peru; Ecuador; Trinidad, 

 i. Hemibrycon gup pii (Regan). 



Habitat: Trinidad. 

 2. Hemibrycon tceniurus (Gill). 



Habitat: Trinidad. 

 A3. Hemibrycon jelskii (Steindachner). 



Habitat: Peru. 

 4. Hemibrycon polyodon Giinther. 



Hemibrycon Iiuambonicus (Steindach- 

 ner). 



Habitat: Western Ecuador and Peru. 

 A5. Hemibrycon ipanguianus (Cope). 



Habitat: Ucayale. 



Pseudochalceus Kner. 



Type : Pseudochalceus lineatus Kner. 

 Range : Western Ecuador and Rio 

 Grande do Sul. 

 1. Pseudochalceus lineatus Kner. 



Habitat : Western slopes of Ecuador. 



HOLLANDICHTHYS Eigenmann. 



Type: Tetragonopterus multifasciatus 

 E. & N. 

 1. Hollandichthys multifasciatus (Eigen- 

 mann & Norris). 



Pseudochalceus perstriatus Ribeiro; 

 Pseudochalceus affinis Steindachner. 



Habitat: Cubatao. 



ASTYANAX Baird & Girard. 



Poecilurichthys 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. 



(Poecilurichthys Gill). 



(Type: P. brevoortii Gill). 

 1. Astyanax polylcpis (Giinther). 



Habitat: Guiana. 



2. Astyanax crythropterus (Holmberg). 



Habitat: La Plata Basin. 



3. Astyanax pellegrini Eigenmann. 



Habitat : Paraguay. 



4. Astyanax correntinus (Holmberg). 



Habitat: Parana. 

 A5. Astyanax riveti Pellegrin. 



Habitat :• Rio Pove, Ecuador. 

 6. Astyanax festae (Boulenger). 



Habitat : Western Ecuador. 

 A 7. Astyanax brevirostris (Giinther). 



Tetragonopterus branckii Steindachner. 

 Habitat: Ecuador and Peru. 

 A8. Astyanax asymmetricus Eigenmann. 



Habitat: Tabatinga. 

 A9. Astyanax symmetricus Eigenmann. 



Habitat : Tabatinga. 

 A 10. Astyanax sonatas Eigenmann. 



Habitat : Tabatinga. 

 11. Astyanax cordovce (Giinther). 



Habitat: Argentina. 

 A 1 2. Astyanax anterior Eigenmann. 



Habitat : Tabatinga. 

 A 13. Astyanax bourgeti Eigenmann. 



Habitat : Tabatinga. 

 14. Astyanax abramoides Eigenmann. 



Habitat: Guiana. 

 A15. Astyanax abramis (Jenyns). 

 Habitat: Orinoco to La Plata. 

 A16. Astyanax bimaculatus (Linnaeus). 



Albula maculata Linnaeus; Tetragonop- 

 terus linncci, orbignianus, gronovii 

 Cuvier & Valenciennes ; Pcccilur- 

 ichthys brevoortii Gill; T. bart- 

 lettii Giinther; 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. 



