224 FISHES OF WESTERN SOUTH AMERICA 
There is confusion as to the origin of the type and as to the locality in which 
the Eigenmann specimens were collected: in the former case the text says the ma- 
terial was collected by Heller on the Comberciato while the legend with the figure 
gives Santa Ana as the type locality; in the case of 16048, the description, page 365, 
assigns the specimens to Santa Clara, while the label in the bottle credits the speci- 
mens to Santa Ana. 
255. BRYCONAMERICUS DIAPHANUS (Cope) 
Tetragonoplerus diaphanus Cope (in part), 1878, Proc. Amer. Phil. Soc., XVII, 691, Orton collection 
from the Maranon; 
Eigenmann and Eigenmann, 1891, Proc. U.S. Nat. Mus., XIV, 53. 
Astyanax diaphanus Fowler, 1906 (1907), Proc. Acad. Nat. Sci. Phila., LVIIT, 339, fig. 27. 
Bryconamericus diaphanus Eigenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, IIT, 434; 
Eigenmann, 1927, Mem. Mus. Comp. Zool., XLII, iv, 367. 
The basin of the Maranon 
The type, 40 mm. long, is the only specimen known; part of the Orton collec- 
tions at the Philadelphia Academy. 
256. BRYCONAMERICUS PHOENICOPTERUS (Cope) 
Tetragonopterus phoenicopterus Cope, 1871, Proc. Acad. Nat. Sci. Phila., NXTIT, 261, Rio Ambyiacu 
Hauxwell collection; 
Eigenmann and Eigenmann, 1891, Proc. U.S. Nat. Mus., XTV, 54. 
Astyanax phoenicopterus Fowler, 1907, Proc. Acad. Nat. Sei. Phila., LVITT, 338, fig. 26. 
Bryconamericus phoenicopterus Eigenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, IT, 434; 
Figenmann, 1927, Mem. Mus. Comp. Zool., XLII, iv, 373, pl. Ixix, figs. 5 and 9; pl. Ixxxv, 
fig. 3. 
Rio Ambyiacu 
The unique type specimen is at the Philadelphia Academy. 
257. BRYCONAMERICUS PACHACUTI Eigenmann 
Bryconamericus pachacuti Eigenmann, 1927, Mem. Mus. Comp. Zool., XLIII, iv, 376, pl. xcix, 
fig. 3. 
Urubamba basin of southern Peru 
31563 MCZ, 1, 74 mm., type, Santa Ana, Rio Urubamba, Heller. 
7053 CM, 13756 IU, 70, largest 75 mm., paratypes, Santa Ana, Heller. 
7054 CM, 2, 46 and 52 mm., Rio Comberciato, Heller. 
16051, many, 38-81 mm., Urubamba, Santa Ana, EKigenmann, November, 1918. 
258. BRYCONAMERICUS CAUCANUS Eigenmann 
Bryconamericus caucanus Eigenmann, 1913, Ind. Univ. Studies, no. 18, 17; 
BHigenmann, 1922, Mem. Carnegie Mus., LX, 151; 
Eigenmann, 1927, Mem. Mus. Comp. Zool., XLII, iv, 387, pl. xxxviii, fig. 1; pl. Ixxv, figs. 
2,9, and 11; 
Pearson, 1937a, Proc. Cal. Acad. Sci., (4), XXIII, 91. 
