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 pediincle 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 (Giinther). 



Heros erythrcBus Giinther, Fishes Cent. Amer., 457, PI. lxxv, fig. 

 2, 1869, Lake Managua. 



Head 2.56; depth 2.36; D. xvii-ii; A. vii, 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 

 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 i)rotuber- 

 ance, suggesting the triangular flap of C. lohochilns and C. labiatmn. 

 Onf individii.'il t.-ikfn in Lake Managua, near Granada, length 224 mm. 



Cichlasoma labiatum (Giinther). 



Utros labiatHs (iiinther, Proc. Zool. Soc, Lond., 1864, 27, PI. iv, 

 fig. I, Lake Nicaragua: (iill & Bransford, Proc. Acad. Nat. Sci.. 

 Phila,, 1877, 182. 



