400 FISHES OF WESTERN SOUTH AMERICA 
Most of the Amazon basin northward 
17764, 1, 94 mm., Rio Itaya, Allen, September, 1920. 
17765, 2, 76 and 86 mm., Yarinacocha, Allen, August, 1920. 
17766, 1, 120 mm., Iquitos, Allen, September, 1920. 
17767, 1, 102 mm., Iquitos, Morris, 1922. 
516. GEOPHAGUS JURUPARI Heckel 
Geophagus jurupart Heckel, 1840, Ann. Wiener Mus., II, 392; 
Cope, 1871, Proc. Acad. Nat. Sci. Phila., X XTIT, 251, R. Ambyiacu; 
Steindachner, 1875, Sitzb. IkKIx. Akad. Wiss. Wien, LX.X1, 120; 
Steindachner, 1882 (1883), Denksch. KK. Akad. Wiss. Wien, XLVI, 2, three poor specimens, 
Iquitos, R. Huallaga; 
Pellegrin, 1899, Bull. Mus. Hist. Nat., V, 405; 
Pellegrin, 1903 (1905), Mém. Soc. Zool. France, XVI, 189, 195; 
Regan, 1906, Ann. Mag. Nat. Hist., (7), X VII, 56; 
Eigenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, III, 479; 
Haseman, 1911¢e, Ann. Carnegie Mus., VII, 370; 
Kigenmann, 1912, Mem. Carnegie Mus., V, 504; 
Fowler, 1939 (1940), Proc. Acad. Nat. Sci. Phila., XCI, 281, twenty-three, 38-173 mm., 
Contamana. 
Peruvian and Brazilian Amazons, Guiana 
15990, 10, 42-161 mm., Iquitos, Morris, 1922. 
17758, 3, 127-167 mm., Contamana, Allen, August, 1920. 
17759, 1, 118 mm., Lago Cashiboya, Allen, August, 1920. 
17760, 1, 140 mm., Iquitos, Allen, September, 1920. 
17761, 4, 21-105 mm., brook, Rio Itayva, Allen, September, 1920. 
17762, 1, 148 mm., Rio Morona, Allen, October, 1920. 
17763, 8, 95-122 mm., Yarinacocha, Allen, August, 1920. 
17790, 6, 170-200 mm., Manaos, Allen, December, 1920. 
Genus 210: APISTOGRAMMA Regan 
Mesops (in part) Giinther, 1862, Cat. Fish. Brit. Mus., IV, 311. 
Heierogramma Regan, 1906, Ann. Mag. Nat. Hist., (7), XVII, 63, preoccupied; 
EKigenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, II, 478; 
Eigenmann, 1912, Mem. Carnegie Mus., V, 506. 
Apistogramma Regan, 1913, Ann. Mag. Nat. Hist., (8), XII, 282. 
Type: Heterogramma borellii Regan 
Amazons, Rio Paraguay 
First branchial arch with its upper ramus bearing a lobe fringed with feeble 
rakers; upper lateral line closely approaching the dorsal fin. 
517. APISTOGRAMMA AMOENUM (Cope) 
Geophagus amoenus Cope, 1871, Proc. Acad. Nat. Sci. Phila., XXIII, 250, Rio Ambyiacu. 
Apistogramma amoenus Regan, 1918, Ann. Mag. Nat. Hist., (8), XIT, 283. 
Mesops taeniatus Giinther, 1862, Cat. Fish. Brit. Mus., IV, 312. 
Geophagus taeniatus Cope, 1878, Proce. Amer. Phil. Soc., XVII, 697, Peruvian Amazon; 
Steindachner, 1875, Sitzb. KIx. Akad. Wiss. Wien, LX.XI, 115. 
