JULY, 1907. FISHES OF GREAT LAKES, NICARAGUA MEEK. 127 



Head 2.3 to 2.4; depth 2.1 to 2.2; D. xvi or xvn, 10 or n; 

 A. vn, 7 or 18; scales 7-32-11. Body deep, compressed, profile 

 nearly straight; snout long, pointed, 2.1 to 2.2 in head; mouth, 

 nearly horizontal; maxillary not reaching vertical from eye, its length 



3.2 to 3.4 in head; mandible 2.4 to 2.6; preorbital 3.7 to 4.0; post- 

 orbital 2.7 to 2.9; diameter of eye 3.5 to 3.7; interorbital 3.5 to 3.7; 

 snout to scales on nape 1.6 to 1.7; lower lip with a frenum; eye to 

 lower margin of subopercle 2.7 to 2.9; dorsal fin high, its last spine 



2.3 to 2.7 in head; last anal spine 2.3 to 2.8; gill rakers 5+15; origin 

 of dorsal fin to tip of snout 2.0 to 2.2 in body; base of anal 3.8 to 3.9 ; 

 pectoral fin very long, reaching middle of soft portion of anal, its 

 length i. o to 1.2 in head; ventral reaching third or fourth anal spine, 



1.3 to 1.4 in head; scales on cheeks in 5 or 6 rows; length of caudal 

 peduncle -3.4 to 3.6 in head, its depth 2.8 to 3.0; caudal fin slightly 

 forked; nuchal hump developed on larger specimens (160 mm.). 



Color light olivaceous, sides with six indistinct dark vertical bars; 

 no dark band on the side; a dark lateral and a dark caudal spot; 

 soft dorsal and anal with light spots; caudal profusely spotted or 

 barred; upper and the lower jaws very dark or black. This species 

 may possibly prove to be the males of the following: 



Managua (3), 135 to i6omm. ; San Francisco (8), no to 145 mm.; 

 Granada (18), 155 to 170; Jenicero (6), 100 to 170 mm.; Cisplaya (6), 

 160 to 170. 



Cichlasoma longimanus (Gunther). 



Heros longimanus Giinther, Fishes Cent. Amer., 453, PL LXXII, 

 fig. 2, 1869, Lake Nicaragua: Gill & Bransford, Proc. Acad. 

 Nat. Sci., Phila., 1877, 182, Lake Nicaragua. 



Head 2.4 to 2.5; depth 1.9 to 2.0; D. xvi or xvn, 9 or 10; A. 

 vii 7 or 8; scales 6-30-11. In form and general appearance this 

 species resembles the preceding; snout 2.2 to 2.5 in head; maxillary 

 3.1 to 3.2; mandible 2.4 to 2.6; preorbital 3.5 to 3.8; postorbital 



2.4 to 2.5; diameter of eye 3.1 to 3.8; eye to subopercle 2.4 to 2.6; 

 interorbital 2.8 to 2.9; snout to scales on nape 1.8 to 1.9; last dorsal 

 spine 2.2 to 2.6; last anal spine 2.1 to 2.5; pectoral i.o; ventral i.o 

 to 1.2 ; length of caudal peduncle 2.9 to 3.2 ; depth of caudal peduncle 

 2.4 to 2.5; origin of dorsal to tip of snout 2.1 to 2.2 in body; base 

 of anal fin 3.2 to 3.4; lower lip with a frenum; caudal fin slightly 

 forked; no nuchal hump on largest specimens (155 mm.). 



Color dark olivaceous ; sides with six or 7 indistinct vertical bars ; 

 a dark band from eye to lateral spot ; no distinct caudal spot ; posterior 



