264 FISHES OF WESTERN SOUTH AMERICA 
336. COPEINA ARGYROPS (Cope) 
Pyrrhulina argyrops Cope, 1878, Proc. Amer. Phil. Soc., XVII, 694, Rio Maranon, Orton collection. 
Copeina argyrops Fowler, 1906 (1907), Proc. Acad. Nat. Sei. Phila., LVIII, 295, fig. 2; 
Eigenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, III, 428; 
Regan, 1912, Ann. Mag. Nat. Hist., (8), X, 395. 
The Amazons 
Genus 130: PYRRHULINA Cuvier and Valenciennes 
Pyrrhulina Cuvier and Valenciennes, 1846, Hist. Nat. Poiss., XIX, 534; 
Eigenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, III, 428; 
Eigenmann, 1912, Mem. Carnegie Mus., V, 278. 
Holotaxis Cope, 1870, Proc. Amer. Phil. Soc., XI, 563. 
Type: Pyrrhulina filamentosa Cuvier and Valenciennes 
Rios Paraguay and Amazon to the Guianas 
Small, elongate characin fishes having premaxillary and dentary provided with 
two or more series of conical teeth; palatines without teeth; mouth opening ex- 
tremely oblique; nares closely approximated; dorsal and anal fins short; no adipose 
fin and no lateral line. 
337. PYRRHULINA MELANOSTOMA (Cope) 
Holotaxis melanostomus Cope, 1870, Proc. Amer. Phil. Soc., XI, 563. 
Pyrrhulina melanostoma EKigenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, IIT, 428. 
Pyrrhulina natterert Regan, 1912, Ann. Mag. Nat. Hist., (8), X, 390, one specimen, 40 mm., Amazon. 
Pebas on the Peruvian Amazon 
338. PYRRHULINA LAETA (Cope) 
Holotaxis laetus Cope, 1871 (1872), Proce. Acad. Nat. Sci. Phila., XXIII, 257, Ambyiacu, Hauxwell 
collection. 
Pyrrhulina laeta Fowler, 1906 (1907), Proc. Acad. Nat. Sei. Phila., LVI, 294, fig. 1; 
Eigenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, III, 428. 
Pyrrhulina semifasciata Regan, 1912, Ann. Mag. Nat. Hist., (8), X, 390. 
Rio Ambyiacu 
Known from the types in the Philadelphia Museum. 
339. PyRRHULINA ELEANORAE Fowler 
Pyrrhulina eleanorae Fowler, 1939 (1940), Proc. Acad. Nat. Sci. Phila., XCI, 262, fig. 59. 
Contamana, Bajo Ucayali 
Known from the type, 52 mm. long. Near P. brevis Steindachner, with dark 
horizontal line through mandible, eye, opercle, and two scale rows beyond. 
