472 



PATAGONIAN EXPEDITIONS! ZOOLOGY. 



2. XLquidens centralis (Holmberg), 



Pellegrin, 136. 



Habitat: Santiago del Estero, Argen- 

 tina. 



3. ALquidens portalegrensis (Hensel), 



Pellegrin, 137. 

 Habitat: Porto Alegre, Rio Grande do 



Sul; Paraguay. 

 A4. JEquidens vittatus (Heckel), 



Pellegrin, 137. 



Habitat: Colombia to Guiana; Am- 

 azons and Paraguay. 

 AS. JEquidens syspilus (Cope), 



Pellegrin, 137. 

 Habitat : Upper Amazons. 

 A6. Mquidens dorsigerus (Heckel), 



Pellegrin, 138. 



Habitat: Paraguay; Amazons. 

 7. JEquidens paraguayensis Eigenmann & 



Kennedy, Pellegrin, 139. 



Habitat: Paraguay. 

 A8. JEquidens flavescens (Cope), 



Regan, 1905, 343. 

 Habitat: Ambyiacu. 

 Ag. &quidens thayeri (Steindachner), 



Pellegrin, 139. 

 Habitat: Amazons (Lago Maximo; 



Hyanuary; Teffe). 

 IO. JEquidens pulcher (Gill), 



Pellegrin, 140. 



Habitat : Rio Magdalena to Trinidad, 

 it. ^quidens coeruleopunctatus (Kner& 



Steindachner). 



Acara latifrons Steindachner. 

 Habitat: Rio Chagres; northwestern 

 Ecuador. 



12. JEquidens latifrons (Steindachner), 



Pellegrin, 141. 

 Habitat : Rio Magdalena. 



13. .ffiquidens equinoctialis (Regan), 



Regan, 1905, 337. 

 Habitat: Western Ecuador. 



14. ./Equidens rivulatus (Giinther), 



Pellegrin, 141. 

 Acara pulchra Giinther, non Gill. 



Habitat : Western Ecuador. 



15. JEquidens sapayensis Regan. 



Habitat: Western Ecuador. 



1 6. JEquidens freniferus (Cope), 



Pellegrin, 141. 

 Habitat: Ambyiacu. 

 Ai7. fiLquidens minutus (Hensel), 1 



Pellegrin, 142. 

 Habitat: Porto Alegre, Rio Grande do 



Sul. 

 1 8. JEquidens geayi (Pellegrin), 



Pellegrin, 142. 



Habitat: River Camopi, French Gui- 

 ana. 

 A 1 9. JEquidens subocularis (Cope), 



Pellegrin, 189. 



Geophagus (mesops) thayeri Stein- 

 dachner. 



Habitat : Amazons. 

 20. JEquidens maronii (Steindachner), 



Pellegrin, 143. 

 Habitat: French Guiana. 

 A2i. JEquidens 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 callolepis 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. 



