JULY, 1907. FISHES OF GREAT LAKES, NICARAGUA MEEK. 121 



develops the nuchal hump ; least depth of caudal peduncle 2 . 5 in head ; 

 caudal fin rounded. 



Color dark olivaceous ; six or seven dark bands ; lateral band more 

 or less broken into blotches; body and head of males with numer- 

 ous small, black spots, those on body forming longitudinal lines along 

 rows of scales; vertical fins spotted; females without the small, black 

 spots; a dark band downward and backward from the eye; a dark 

 spot above base of pectoral and one on its base ; vertical fins unspotted . 

 The dark caudal spot is more prominent on the females. 



This is the largest Cichlid in the lakes of Nicaragua. It grows to 

 a length of about 50 cm. 



Managua (n), 170 to 405 mm.; Granada (4), 145 to 150 mm. 



Erythrichthus subgen. nov. (Type, Heros citrinellus Gunther.) 



Cichlasoma granadense sp. nov. 



Type, No. 5951, F. M. N. H.; length, 155 mm.; Lake Nicaragua, 

 Granada, Nicaragua. 



Head 2.5 to 2.6; depth 2.1 to 2.2; D. xvm, n or 12; A. vn, 

 7 to 9; scales 7-31-12. Body moderately robust; dorsal region 

 slightly elevated; profile slightly concave above eyes; nuchal region 

 but little developed ; mouth small ; maxillary reaching, slightly more 

 than half-way to front of orbits, its length 3.3 1x^3.5 in head; mandi- 

 ble 2.7 to 2.8; snout 2.5 to 2.7 in head; preorbital 4.2 to 4.6; post- 

 orbital 2.5 to 2.6; diameter of eye 3.8 to 4.0; eye to lower margin of 

 subopercle 2.6 to 2.9; teeth small, pointed, the anterior ones slightly 

 enlarged ; lips moderately thick, the lower with its edge free ; gill rakers 

 short, 4+8; cheeks with 4 rows of scales; spinous dorsal very low, 

 its last spine 3.4 to 3.7 in head; last anal spine 3.0 to 3.2 in head; soft 

 rays of dorsal and anal not much produced, their tips seldom reaching 

 middle of caudal; origin of dorsal fin to tip of snout 2.2 to 2.3 in body ; 

 base of anal 3.7 to 3.9 in body; pectoral fin reaching second or third 

 anal spine, 1.3 to 1.4 in head; ventral fin 1.2 in head; caudal fin 

 short, rounded. . 



Color very dark, sides with 7 dark bars, no distinct lateral spot; 

 caudal spot present. This species differs from C. citrinellum in the 

 smaller mouth, lower dorsal fin, the larger eye, and darker coloration. 



Managua (2), 135 to 145 mm.; San Francisco (4), 100 to 150 mm.; 

 Jenicero (i), 150 mm.; Granada (3), 140 to 150 mm. 



Cichlasoma citrinellum Gunther. MOJARRA CONTARA. 



Heros citrinellus Gunther, Proc. Zool. Soc., Lond., 1864, 153, Lake 



