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PATAGONIAN EXPEDITIONS! ZOOLOGY. 



Cochliodon hypostomus Heckel; Lori- 



caria melanoptera Natterer. 

 Habitat: Amazon to Paraguay. 



PANAQUE Eigenmann & Eigenmann. 



Type: Chcetostomus nigrolineatus Pe- 

 ters. 

 Range: Goyaz to Xeberos and Magda- 



lena. 

 Ai. Panaque dentex (Giinther), 



Regan, 243. 

 Habitat: Xeberos. 

 2. Panaque cochliodon (Steindachner), 



Regan, 243. 

 Chcetostomus gibbosus Steindachner 



and Panaque gibbosus Regan. 

 Habitat: Magdalena Basin. 

 A3. Panaque nigrolineatus (Peters), 



Regan, 244. 

 Habitat: Goyaz; Venezuela. 



CH^TOSTOMUS Tschudi. 



Type : Chcetostomus loborhynchus 



Tschudi. 

 Range: Mountains north of Peru to 



Panama and Venezuela, 

 i. Chaetostomus loborhynchus Tschudi, 



Regan, 246. 



Habitat: Andes of western Peru. 

 A2. Chcetostomus marcapatce Regan, 



Regan, 246. 

 Habitat: Marcapata Valley, eastern 



Peru. 

 A3. Chcetostomus brevis Regan, 



Regan, 246. 

 Habitat: Rios Bomboiza and Zamora, 



eastern Peru. 

 A4. Chcetostomus taczanowskii Steindach- 



ner > Regan, 247. 



Habitat: Rios Huambo and Tortora, 



eastern Peru. 



AS. Chaetostomus dermorhynchus Bou- 

 lenger, Regan, 248. 



Habitat : Eastern and western Ecuador 

 6. Chaetostomus fischeri Steindachner, 



Regan, 248. 

 Habitat: Rio Mamoni near Chepo. 



8. Chcetostomus stanii Lutken, Regan, 248. 



Habitat: Puerto Cabello, Venezuela. 



9. Chcetostomus guairensis Steindachner, 



Regan, 249. 

 Habitat: Caracas, Venezuela. 



10. Chaetostomus marginatus Regan, 



Regan, 249. 

 Chcestomus microps Boulenger, non 



Giinther. 



Habitat : Salidero, northwest Ecuador. 

 Ail. Chcetostomus branickii Steindachner, 



Regan, 250. 

 Habitat: Callacate, eastern Peru. 



12. Chcetostomus anomalus Regan, 



Regan, 250. 



Habitat: Merida and neighboring 

 mountains, Venezuela. 



13. Chcetostomus thomsoni Regan, 



Regan, 250. 

 Habitat : Villeta, Colombia. 



14. Chcetostomus nudirostris Lutken. 



Regan, 251. 

 Habitat: Valencia, Venezuela. 



15. Chaetostomus microps Giinther, 



Regan, 251. 

 Hypostomus erinaceus Giinther, non 



Cuvier & Valenciennes. 

 Habitat : Western slope of Ecuador. 



XENOCARA Regan. 



Type : Chcetostomus latifrons Giinther. 

 Range : Peru to Guiana. 

 Ai. Xenocara latifrons (Giinther), 



Regan, 253. 



Habitat: Peruvian Amazon. 

 A2. Xenocara gymnorhynchus (Kner), 



Regan, 254. 

 ? Hypostomus nudiceps Miiller & Tro- 



schel. 

 Habitat : Venezuela and Guiana ; Paraguay. 



