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PATAGONIAN EXPEDITIONS: ZOOLOGY. 



2. Aiquidens centralis (Holmberg), 



Pellegrin, 136. 

 Habitat : Santiago del Estero, Argen- 

 tina. 



3. Aiquidens portalegrensis (Hensel), 



Pellegrin, 137. 

 Habitat: Porto Alegre, Rio Grande do 

 Sul ; Paraguay. 

 A4. Aiquidens vittatus (Heckel), 



Pellegrin, 137. 

 Habitat : Colombia to Guiana ; Am- 

 azons and Paraguay. 

 A5. Aiquidens syspilus (Cope), 



Pellegrin, 137. 

 Habitat: Upper Amazons. 

 A6. Aiquidens dorsigerus (Heckel), 



Pellegrin, 138. 

 Habitat : Paraguay ; Amazons. 

 7. Aiquidens paraguayensis Eigenmann & 



Kennedy, Pellegrin, 139. 



Habitat : Paraguay. 

 A8. Aiquidens flavescens (Cope), 



Regan, 1905, 343. 

 Habitat: Ambyiacu. 

 A9. Aiquidens thayeri (Steindachner) , 



Pellegrin, 139. 

 Habitat: Amazons (Lago Maximo; 

 Hyanuary; Teffe). 



10. Aiquidens pulcher (Gill), 



Pellegrin, 140. 

 Habitat: Rio Magdalena to Trinidad. 



11. iEquidens coeruleopunctatus (Kner & 



Steindachner). 

 Acara latifrons Steindachner. 

 Habitat: Rio Chagres ; northwestern 



Ecuador. 



12. Aiquidens latifrons (Steindachner), 



Pellegrin, 141. 

 Habitat: Rio Magdalena. 



13. .ffiquidens equinoctialis (Regan), 



Regan, 1905, 337. 

 Habitat: Western Ecuador. 



14. iEquidens rivulatus (Giinther), 



Pellegrin, 141. 

 Acara pulchra Giinther, non Gill. 



Habitat: Western Ecuador. 



15. Aiquidens sapayensis Regan. 



Habitat: Western Ecuador. 



16. Aiquidens freniferus (Cope), 



Pellegrin, 141. 

 Habitat : Ambyiacu. 

 A17. Aiquidens viinutus (Hensel), 1 



Pellegrin, 142. 

 Habitat : Porto Alegre, Rio Grande do 

 Sul. 

 18. Aiquidens geayi (Pellegrin), 



Pellegrin, 142. 

 Habitat: River Camopi, French Gui- 

 ana. 

 A19. Aiquidens subocularis (Cope), 



Pellegrin, 189. 

 Geophagus (mesops) thayeri Stein- 

 dachner. 

 Habitat: Amazons. 

 20. Aiquidens maronii (Steindachner), 



Pellegrin, 143. 

 Habitat: French Guiana. 

 A21. Aiquidens zamorensis (Regan), 



Regan, 1905, 339- 

 Habitat: Ecuadorian Amazons. 



Thorichthys Meek. 



Type: Thorichthys ellioti Meek. 

 Range : Eastern slope of Mexico and 

 Central America. 



1. Thorichthys aureus (Giinther), 



Pellegrin, 202. 



Heros maculipinnis and helleri Stein- 

 dachner. 



Habitat : Eastern Mexico, south of 

 Vera Cruz; Guatemala. 



2. Thorichthys ellioti Meek Meek, 223. 



Habitat : Vera Cruz, Mexico. 



3. Thorichthys callolcpis Regan, 



Regan, 1904, 258. 

 Habitat: Santo Domingo de Guzman. 



4. Thorichthys affinis ( Giinther) . 



Habitat: Guatemala and British Hon- 



1 Regan considers this the young of Geophagus gym- 

 nogenys Hensel. 



