390 



PATAGONIAN EXPEDITIONS : ZOOLOGY. 



3. Conorhynchos nelsoni Evermann & 



Goldsborough, Meek, 19. 



Habitat: Rio Usumacinta, Montecristo, 

 Chiapas. 



BAGROPSIS Liitken. 

 Type : Bagropsis reinhardti Liitken. 

 Range that of the single species. 

 I. Bagropsis reinhardti Liitken, 



E. & E., 1 86. 

 Habitat: Rio das Velhas. 



PLATYNEMATICHTHYS Bleeker. 



Type : Bagrus punctulatus Kner. 

 Range: Amazons and tributaries. 

 Al. Platyncmatichthys punctulatus (Kner), 



E. & E., 187. 



Bagrus nigripunctatus Kner. 

 Habitat: Rio Guapore to Rio Branco. 

 .\2. Platynematichthys araguaycnsis (Cast- 



elnau), E. & E., 187. 



Habitat: Araguay. 



PHRACTOCEPHALUS Agassiz. 



Type: Phractocephalns bicolor Agassiz. 

 Range that of the single species. 

 A I. Phractocephalus hemiliopterus (Bloch 



& Schneider), E. & E., 188. 



Phractocephalus bicolor Agassiz. 

 Habitat : Amazons and northward. 



SCIADES Miiller & Troschel. 



Leiarius, Sciadichthys Bleeker. 

 Type : Bagrus pictus Miiller & Troschel. 

 Range: Amazons and tributaries; 

 Paraguay. 



( SCIADES.) 



Al. Sciades pictus Miiller & Troschel, 



E. & E., 191. 



Arius longibarbis Castelnau. 

 Habitat : Amazon ; Paraguay. 



(SciADEOlDES Eigenmann & Eigenmann.) 

 (Type: Sciades marmoratus Gill.) 



A2. Sciades marmoratus Gill, E. & E., 192. 

 Habitat: Maranon. 



NEMUROGLANIS Eigenmann & Eigenmann. 



Type: Nemuroglanis lanceolatus Ei- 

 genmann & Eigenmann. 

 Al. Nemuroglanis lanceolatus E. & E., 



E. & E., 193. 

 Habitat: Jutahy. 



BRACHYPLATYSTOMA Bleeker. 



Piramutana, Piratinga, and Malacoba- 



grus Bleeker. 

 Type : Platystoma vaillanti Cuvier & 



Valenciennes. 



Range: Parahyba through Amazons. 

 A i. Brachyplatystoma filamentosum Lich- 



tenstein, Steind., igoSc, 112. 



Piratinga 'pira-aiba Gceldi ; B. gceldii 

 Eigenmann & Bean ; Platystoma mu- 

 cosa Vaillant; Platystoma vcrnico- 

 sum Boulenger. 

 Habitat: Brazil; Para. 

 A*2. Brachyplatystoma piramuta (Kner), 



E. & E., 186. 



Habitat : Amazon and its tributaries. 

 A2. Brachyplatystoma vaillanti (Cuvier & 



Valenciennes), E. & E., 196. 



Platystoma affine Cuvier & Valencien- 

 nes. 

 Habitat: Eastern slopes north of Rio 



Parahyba. 



A3. Brachyplatystoma reticulatum (Kner), 



E. & E., 198. 

 Bagrus goliath Kner in part (the two 



larger specimens mentioned). 

 Habitat: Rio Tocantins; Amazon; Rio 



Madeira. 



A4. Brachyplatystoma rousseauxii (Castel- 

 nau) E. & E., 198. 



Bagrus goliath Kner (the type only). 

 Habitat : Amazon and its tributaries. 

 AS. Brachyplatystoma juruense Boulenger 

 Boul., Trans. Zool. Soc., XIV, 421. 

 Habitat : Rio Jurua. 



