124 FIELD COLUMBIAN MUSEUM ZOOLOGY, VOL. VII. 



1.2 to 1.4 in head; pectoral fin long, its tip reaching soft rays of anal, 

 i.i to 1.2 in head; length of caudal peduncle 3.4 to 4.0 in head, its 

 depth 2.6 to 2.7 ; soft dorsal, anal and caudal with scales extending on 

 basal third. 



Color dark olivaceous; sides with seven black cross bands, the 

 fourth darkest, but without definite black lateral blotch ; a black spot 

 on upper half of base of caudal; fins unspotted. 



The lips of this species are quite similar to those of the following 

 species. The fish, however, is deeper, and with dorsal region more 

 elevated. It also has a shorter snout. 



Managua (3), 115, 179; Granada (i), 200 mm.; Jenicero (i), 95 mm. 



Cichlasoma erythraeum (Gunther). 



Heros erythrceus Gunther, Fishes Cent. Amer., 457, PI. LXXV, fig. 

 2, 1869, Lake Managua. 



Head 2.56; depth 2.36; D. xvii-n; A. vn, 9; scales, 7-32-11. 

 Body rather elongate, dorsal region not much elevated ; profile slightly 

 concave in supraorbital region; nuchal region slightly gibbous; jaws 

 subequal; lips thick, the lower with free margin; center of each lip 

 1 with a slight prominence ; anterior teeth of upper jaw enlarged, rather 

 wide set ; anterior teeth of lower jaw similar but smaller ; snout rather 

 pointed, its length 2.10 in head; preorbital 4.03 in head; postorbital 

 2.63 in head; diameter of eye 4.96; eye to margin of subopercle, 2.58; 

 mouth moderate, slightly oblique; maxillary not reaching vertical 

 from anterior margin of orbit, its length 2.74 in head; mandible 2.45 ; 

 interorbital 2.91; snout to scales on nape 1.80; cheeks with four rows 

 of scales; dorsal fin rather low, its last spine 2.68 in head; middle 

 rays of dorsal fin produced, their tips reaching past middle of caudal 

 fin ; those of anal fin to first third of caudal ; origin of dorsal to tip of 

 snout 2.25 in body; base of anal fin 3.66 in body, its last spine 2.85 

 in head; ventrals reaching third anal spine, 1.24 in head; length of 

 caudal peduncle, 3.60 in head, its depth 2.82. 



Color red with a yellowish tinge; some scales on the body dark; 

 tips of soft dorsal rays black; all other fins red. 



. The lips of this individual have each a slight triangular protuber- 

 ance, suggesting the triangular flap of C. lobochilus and C. labiatum. 

 One individual taken in Lake Managua, near Granada, length 224 mm. 



Cichlasoma labiatum (Qunther). 



Heros labiatus Gunther, Proc. Zool. Soc., Lond., 1864, 27, PL iv, 

 fig. i, Lake Nicaragua: Gill & Bransford, Proc. Acad. Nat. Sci., 

 Phila., 1877, 182. 



