Pearson : Fishes of the Rio Beni Basin 
7 
In addition to the species I myself secured, the following 
species have been reported from the Beni basin (1) by 
Perugia (Ann. Mus. Civ. Stor. Nat. Genova, Ser. 2, VIII, 
1897) : 
Serrasalmo maculcUus Kner. Rio Madidi. 
Pimelodus altipinnis Steindachner. Rio Beni. 
Opsodoras steindachneri (Perugia). Rio Beni. 
Farlowelta acus (Kner). Rio Beni. 
(2) by Haseman (An Annotated Catalogue of the Cichlid 
Fishes Collected by the Expedition of the Carnegie Museum 
to Central South America, 1907-1910. Ann. Carnegie Mus., 
VII, Nos. 3-4, 1911) : 
Creniciclila reticularis (Heckel) . No. 2642, C.M., 9 mm. Beni at Villa 
Bella. 
Creniciclila macroplithalma Heckel. No. 2708, C.M. Beni at Villa Bella. 
Geophagus cupido Heckel. No. 2826 a-b, C.M., 7 and 9 cm. Beni at Villa 
Bella. 
(3) by Eigenmann (The Serrasalminse and Mylinae. Ann. 
Carnegie Mus., IX, p. 269, 1915) : 
Myleus pacu Humboldt. No. 5752 a, C.M., 1, 25 mm. Villa Bella. 
(4) by Eigenmann (New Characins in the Collections of Car- 
negie Museum. Ann. Carnegie Mus., VIII, p. 174, 1911) : 
Phenacogaster beni Eigenmann. No. 3229, C.M., 1, 48 mm. Villa Bella. 
(5) by Eigenmann (New and Rare Species of South Ameri- 
can Siluridae in the Carnegie Museum. Ann. Carnegie Mus. 
IX, Nos. 3-4, p. 398, 1917) : 
Cheirocerus eques Eigenmann. No. 7254 a-b, C.M., 68 and 117 mm. Villa 
Bella. 
List of Localities where Collections were Made 
1. Canamina. On the Miguilla River. Five miles above 
Espia. Altitude 4,200 feet. 
2. Espia. At the junction of the Miguilla and La Paz 
rivers. Altitude 3,080 feet. 
3. Charquita River. About midway between Espia and 
Huachi. 
4. Huachi. At the junction of the Bopi and Cochabamba 
rivers. Altitude 2,235 feet. 
5. Rio Colorado. Tributary to the Bopi ten miles above 
Huachi. 
