ANNOTATED LIST OF THE SPECIES 221 
HKastern ranges and piedmont of Peru and Bolivia, to the Magdalena 
and Argentina 
13760, 60, largest about 95 mm., Santa Ana, 3400 feet, Rio Urubamba, Edmund Heller. 
A. 27-80; lateral line 35-37. 
———, 90, up to 117 mm., Perené valley, Lola E. Vance, elevation 2000. 
Scales 6-8; 31-41; 5-7; humeral spot somewhat elongated on three scales in 
the series along the lateral line and the next above that series, dark area surrounded 
by a pale one; caudal spot on peduncle and variably continued to end of middle 
‘caudal rays; variation considerable in respect to sex, age, environment, food-supply, 
but geographic varieties independent of these factors. 
15869, 33, 538-148 mm., Rio Chanchomayo, La Merced, Allen, June, 1920. 
15870, 30, 57-85 mm., creek, Puerto Bermudez, Allen, July, 1920. 
15871, 6, largest 110 mm., Contamana, Allen, August, 1920. 
15872, 3, 92-132 mm., mouth Rio Pacaya, Allen, August, 1920. 
15873, 36, 40-112 mm., Puerto Melendez, Alto Maranon, Allen, October, 1920. 
16046, 16057, many, 33-110 mm., Santa Ana, Rio Urubamba, Eigenmann, November, 1918. 
16123, 1, 86 mm., Chumatagua creek, above Cayumba rapids, Allen, September, 1918. 
Pearson has extended the known range to many localities in the basin of the 
Beni in Bolivia. The altitudinal range is considerable, and rather unusual, ex- 
tending from the tropical flood plains such as the mouth of the Pacaya up to moun- 
tainous situations of at least 3000 feet. 
248. AsTYANAX LONGIOR (Cope) 
Tetragonopterus longior Cope, 1878, Proc. Amer. Phil. Soc., XVII, 691, Moyobamba; 
Higenmann and Eigenmann, 1891, Proc. U.S. Nat. Mus., XIV, 53. 
Astyanax longior Fowler, 1907, Proc. Acad. Nat. Sci. Phila., LVIII, 341, fig. 29, Moyobamba; 
Eigenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, IIT, 433; 
Eigenmann, 1921, Mem. Mus. Comp. Zool., XLIIT. iii. 282, pl. Ixix, figs. 3 and 4; pl. Ixxxv, 
fig. 2. 
Huallaga and Maranon basins 
249. AsTYANAX MAXIMUS (Steindachner) 
Tetragonoplerus maximus Steindachner, 1875, Sitzb. KIx. Akad. Wiss. Wien, LXXIT, 43, pl. vil, 
Tullumayo; Monterico; 
Steindachner, 1878, Sitzb. KIX. Akad. Wiss. Wien, LX XVIT, 384. 
Astyanax maximus Fowler, 1906 (1907), Proc. Acad. Nat. Sci. Phila., LVIIT, 342, the Orton collec- 
tion, Peruvian Amazon; 
Eigenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, IIT, 432; 
Eigenmann, 1921, Mem. Mus. Comp. Zool., XLITI, ili, 289, pl. Ixxxvii, figs. 1-3; 
Pearson, 1937a, Proc. Cal. Acad. Sci., (4), XXIII, 91, upper Maranon. 
Tetragonopterus alosa Giinther, 1876, Ann. Mag. Nat. Hist., (4), XVII, 399, Monterico. 
Tetragonopterus rutilus Starks (non Jenyns), 1906, Proc. U.S. Nat. Mus., XXX, 777, Rio Perené. 
