280 FISHES OF WESTERN SOUTH AMERICA 
Hoplias Gill, 1903, Proc. U. S. Nat. Mus., XX VI, 1016; 
Higenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, III, 447; 
Eigenmann, 1912, Mem. Carnegie Mus., V, 412. 
Type: Esox malabaricus Bloch 
Atlantic slope La Plata northward; Pacific slope Ecuador northward 
Mouth large; cheeks well occupied by the suborbitals; teeth conical; pre- 
maxillary with a large canine near the symphysis, a smaller one laterally, and many 
small teeth; maxillary with a large canine and many small teeth; palatine with 
patches of teeth, the outer patch the largest; a series in front of the palatine; maxil- 
lary reaching beyond the orbit; occipital process, fontanels, and adipose fin want- 
ing; caudal fin rounded; air-bladder with walls normal. General configuration 
of Amia. 
369. Hopiias MALABARICUS (Bloch) 
Tareira Maregrave, 1648, Hist. Rer. Nat. Bras., IV, 157. 
Esox malabaricus Bloch, 1794, Ausl. Fische, VIII, 149, pl. 392. 
Synodus malabaricus Bloch and Schneider, 1801, Syst. Ichth., 397. 
Macrodon malabaricus Eigenmann and Eigenmann, 1889, Proc. Cal. Aead. Sei., (2), IT, 102. 
Hoplias malabaricus Gill, 1903, Proc. U. S. Nat. Mus., XXVI, 1015; 
Fowler, 1906 (1907), Proc. Acad. Nat. Sci. Phila., LVIII, 293, Rios Amazon and Ambyiacu, 
Orton and Hauxwell collections; 
Eigenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, III, 447; 
Bigenmann, 1912, Mem. Carnegie Mus., V, 415; 
Fowler, 1939 (1940), Proc. Acad. Nat. Sei. Phila., XCI, 275, nine, 115-248 mm., Contamana. 
Erythrinus trahira and macrodon Spix, 1829, Sel. Gen. et Spec. Pisce. Bras., 48, pl. xvii. 
Macrodon trahira Ginther, 1864, Cat. Fish. Brit. Mus., V, 281; 
Ginther, 1868, Proc. Zool. Soc. London, 239, Huallaga; 
Cope, 1870, Proc. Amer. Phil. Soc., XI, 566, Pebas; 
Cope, 1871, Proc. Acad. Nat. Sci. Phila., XXIII, 257, R. Ambyiacu; 
Cope, 1878, Proc. Amer. Phil. Soc., XVII, 694; 
Steindachner, 1882 (1883), Denksch. KIX. Akad. Wiss. Wien, XLVI, 11, one, Rio Huallaga. 
Rio Magdalena to Rios Huallaga and La Plata; Trinidad 
15891, 1, 402 mm., Gosulimacocha, Rio Morona, Allen, October, 1920. 
15892, 14, 135-215 mm., Lago Cashiboya, Allen, August, 1920. 
15893, 4, 145-348 mm., Yarinacocha, Allen, August, 1920. 
15894, 10, 88-300 mm., Yurimaguas, creek, Allen, November, 1920. 
15895, 1, 135 mm., Contamana, Rio Ucayah, Allen, August, 1920. 
15896, 4, 90-115 mm., creek, Rio Morona, Allen, October, 1920. 
15897, 1, 129 mm., Iquitos, Allen, September, 1920. 
15898, 4, 165-214 mm., Rio Huallaga, Yurimaguas, Allen, November, 1920. 
15899, 3, 145-184 mm., Ica, Rio Itaya, Iquitos, Allen, September, 1920. 
The dorme-dorme of Fowler. 
Genus 148: HOPLERYTHRINUS Gill 
Hoplerythrinus Gill, 1895, Proe. U. 8. Nat. Mus., XVIII, 208; 
Eigenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, III, 448; 
Bigenmann, 1912, Mem. Carnegie Mus., V, 418. 
Ophiocephalops Fowler, 1906 (1907), Proc. Aead. Nat. Sci. Phila., LVIII, 293. 
