47 2 



PATAGONIAN EXPEDITIONS I ZOOLOGY. 



2. ^guldens centralis (Holmberg), 



Pellegrin, 136. 



Habitat: Santiago del Estero, Argen- 

 tina. 



3. JEquidens portalegrensis (Hensel), 



Pellegrin, 137. 

 Habitat : Porto Alegre, Rio Grande do 



Sul; Paraguay. 

 A4- JEquidens mttatus (Heckel), 



Pellegrin, 137. 



Habitat: Colombia to Guiana; Am- 

 azons and Paraguay. 

 AS. JEquidens syspilus (Cope), 



Pellegrin, 137. 

 Habitat : Upper Amazons. 

 A6. JEquidens 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. JEquidens thayeri (Steindachner), 



Pellegrin, 139. 



Habitat: Amazons (Lago Maximo; 

 Hyanuary; Teffe). 



10. JEquidens pule her (Gill), 



Pellegrin, 140. 

 Habitat : Rio Magdalena to Trinidad. 



11. .ffiquidens coeruleopunctatus (Kner & 



Steindachner). 



Acara latifrons Steindachner. 

 Habitat : Rio Chagres ; northwestern 



Ecuador. 

 .12. JEquidens latifrons (Steindachner), 



Pellegrin, 141. 

 Habitat : Rio Magdalena. 



13. ./Equidens equinoctialis (Regan), 



Regan, 1905, 337. 

 Habitat: Western Ecuador. 



14. ./Equidens rivulatus (Giinther), 



Pellegrin, 141. 

 Acara pulchra Giinther, non Gill. 



Habitat : Western Ecuador. 



15. Mquidens sapayensis Regan. 



Habitat: Western Ecuador. 



1 6. JEquidens freniferus (Cope), 



Pellegrin, 141. 

 Habitat: Ambyiacu. 

 Ai7. JEquidens minutus (Hensel), 1 



Pellegrin, 142. 

 Habitat: Porto Alegre, Rio Grande do 



Sul. 

 18. JEquidens geayi (Pellegrin), 



Pellegrin, 142. 



Habitat: River Camopi, French Gui- 

 ana. 

 Aig. ZEquidens subocularis (Cope), 



Pellegrin, 189. 



Geophagus (mesops) thayeri Stein- 

 dachner. 



Habitat: Amazons. 

 20. JEquidens maronii (Steindachner), 



Pellegrin, 143. 

 Habitat: French Guiana. 

 A2I. ^Equidens 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. 



He'ros 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 a ffinis (Giinther). 



Habitat: Guatemala and British Hon- 



1 Regan considers this the young of Geophagus gym- 

 nogenys Hensel. 



