218 FIELD COLUMBIAN MUSEUM ZOOLOGY, VOL. V. 



i/4 m head, their tips slightly produced and reaching base of fourth 

 anal spine; caudal fin rounded; caudal peduncle deep, its least depth 

 2^3 in head; length of caudal peduncle about iX in its least depth. 



Color light brownish, sides with 7 dark vertical bars, each wider 

 than the interspaces, the first bar across nape ending in a dark humeral 

 spot about y$ size of eye, the second bar at base of first four dorsal 

 spines, the last bar on caudal peduncle; a dark ocellated spot at base 

 of caudal slightly above middle; a dark spot on fourth caudal bar 

 below lateral line ; tips of ventrals and anal blackish ; interorbital area 

 dark; a dark bar on napoin front of the one ending in a humeral spot. 



206. Cichlasoma octofasciatum (Regan). 



Heros cyanoguttatus Evermann & Goldsborough, Bull. U. S. Fish 

 Comm., 1902, 157 ; Montecristo, Tabasco. 



Heros octofasciatus Regan, Ann. Mus. Hist. Nat. Geneva, 1903, 417, 

 pi. 13, fig. i; Mexico. 



Southern Mexico to Honduras. 



Head i\ ; depth 2; D. xvn to xix-8 to 10; A. vin to x-8 to 10; 

 scales 5-29-12 to 14. Body deep, compressed; snout short, about as 

 long as diameter of eye; lower lip with afrenum; eye large, 3 (young) 

 to 4 Ys in head, and equaling interorbital width; preorbital straight, 

 its width ^ to f diameter of eye ; dorsal spines gradually increasing 

 to the seventh, the others subequal; pectoral i^ in head; tips of ven- 

 trals reaching fourth anal spine; caudal peduncle short, its depth i^ 

 to 2^ times its length. 



Color, seven obscure dark bands on sides, another at base of caudal 

 fin ; a black spot on third band just below lateral line ; a similar but 

 smaller spot on upper half of base of caudal ; soft parts of unpaired 

 fins obscurely spotted; usually some light blue spots on the head, 

 and one on each scale of. side of body. Length 5 inches. (Regan.) 



207. Cichlasoma par ma (Giinther). 



Heros parma Giinther, Cat., iv, 285, 1862; Mexico and Guate- 

 mala: Giinther, Fishes Cent. Amer., 449, 1869; Guatemala. 

 Cichlasoma parma Jordan & Evermann, Bull. 47, U. S. Fish 

 Comm., 1896, 1519: Evermann & Goldsborough, Bull. U. S. 

 Fish Comm., 1902, 156; Montecristo: Meek, Field Col. Mus. 

 Pub. 65, 1902, 120; La Antigua. 



Large rivers of Mexico which empty into the Gulf south of Vera 

 Cruz. (San Francisco; Vera Cruz; Boca del Rio; Obispo; Perez.) 



Head 3; depth 2 to 2>; D. xvi or xvn, 12 or 13; A. vi, 8 or 9; scales 

 7-33-12. Body rather deep, compressed, profile steep; mouth rather 

 small, the maxillary not reaching vertical from anterior margin of the 



