392 



PATAGONIAN EXPEDITIONS! ZOOLOGY. 



Sorubim caparary Spix; Platystoma 

 pardalis, orbignianum Valenciennes; 

 Platystoma punctatum Cuvier & 

 Valenciennes ; Platystoma forsch- 

 hammeri Reinhardt 



Habitat : Rio de La Plata to Paraguay ; 

 Rio San Francisco Basin. 



SORUBIM Spix. 



Type : Silurus lima Bloch & Schneider. 

 Range that of the single species. 

 Al. Sorubim lima (Bloch & Schneider), 



E. & E., 213. 



Sorubim infraocularis Spix; Platy- 

 stoma luceri Weyenbergh. 

 Habitat : Rio de La Plata ; Amazons to 

 the Rio Magdalena. 



SORUBIMICHTHYS Bleeker. 



Type : Sorubim jandia Spix. 

 Range: Amazons and Orinoco. 



Subfamily 



PHYSOPYXIS Cope. 



Type : Physopyxis lyra Cope. 

 Range that of the single species. 

 A i. Physopyxis lyra Cope, . .E. & E., 220. 

 Habitat: Ambyiacu River. 



DORAS Lacepede. 



Pterodoras, Platydoras Bleeker; Zatho- 



rax Cope. 



Type: Silurus costatus Linnaeus. 

 Range: Rios Paraguay and Francisco 

 to Rio Magdalena. 



(LlTHODORAS Bleeker.) 



(Type : Lithodoras lithogaster Bleeker. ) 

 Ai. Doras dorsalis Cuvier & Valenciennes, 



E. & E., 225. 



Doras carinatus Valenciennes, non Silu- 

 rus carinatus Linnaeus ; Doras papi- 

 lionatus Filippi ; Doras lithogaster 

 Heckel. 



Ai. Sorubimichthys planiceps (Agassiz), 



E. & E., 215 



Sorubim piranaca Spix; Platystoma 

 artedii Giinther; Sorubimichthys or- 

 toni Gill. 



Habitat: Amazon and Orinoco Basins. 

 A2. Sorubimichthys spatula (Agassiz), 



E. & E., 217. 

 Sorubim jandia Spix. 

 .Habitat: Amazon! 

 A3- Sorubimichthys gigas (Giinther), 



E. & E., 217. 

 Habitat: Huallaga. 



PLATYSTOMATICHTHYS Bleeker. 



Type : Platystoma sturio Kner. 

 Range that of the single species. 

 A I. Platystomatichthys sturio (Kner), 



E. & E.. 218. 

 Habitat: Amazon Basin. 



Habitat: Para; Rio Negro and Cay- 

 enne. 



( DORAS Lacepede.) 



A2. Doras uranoscopus Eigenmann & Ei- 



genmann, E. & E., 228. 



Habitat: Lake Hyanuary. 

 A3. Doras granulosus Valenciennes, 



E. & E., 229. 

 Doras murica Natterer. 

 Habitat : La Plata Basin ; Amazon. 



4. Doras maculatus Valenciennes. 



Habitat : La Plata Basin. 



5. Doras longispinis Steindachner, 



E. & E., 231. 



Habitat : Magdalena Basin. 

 A6. Doras regani Steindachner, St., 1908. 

 Habitat : Para. 



7. Doras albomaculatus Peters, E. & E., 231. 



Habitat: Calabozo, Venezuela. 



8. Doras helicophilus Giinther, 



E. & E., 231. 



