American Cichlid Genus Cichlosoma. 241 



as deep. Olivaceous, with a large blackisli blotch on the 

 side, connected to the orbit by an indistinct dark band ; 

 posterior part of dorsal with oblique stripes or series of 

 spots. 



Lake of Nicaragua. 

 1. (133 mm.) type of the Lake of Nicaragua. 0. Salvin, Esq. 



species. 



34. Cichlosoma macr acanthus. 



Heros macmcanthus, Giintli. Proc. Zool, Soc. 1864, p. 153, and Trans. 



Zool. Soc. Yi. 1869, p. 451. 

 Cichlasoma macr acanthus, Jord. & Everm. Bull. U.S. Nat. Mas. xlvii. 



1898, p. 1518 ; Pellegr. M6m. Soc. Zool. France, xvi. 1903, p. 207 



(1904). 



Depth of body \\ (adult) to 2 (young) in the length, 

 length of head 2§-3. Snout shorter than postorbital part 

 of head. Diameter of eye 3-4^ in the length of head, inter- 

 orbital width 2:^-3. Depth of preeorbital ^i-l| the diameter 

 of eye. Maxillary not extending to below the eye ; prae- 

 maxillary processes not extending to above the eye ; jaws 

 equal anteriorly ; fold of the lower lip continuous or not ; 

 cheek with 4 to 6 series of scales ; 1 1 gill-rakers on the 

 lower part of anterior arch. Scales 29-31 ^~^^, 3 or 4 

 between lateral line and base of anterior rays of soft dorsal. 

 Dorsal XIV-XV 12-14, commencing above the opercular 

 cleft, the spines increasing in length to the last, which is 

 \ (young) to f (adult) the length of head ; soft fin, when 

 laid back, extending to anterior part (young) or posterior 

 edge (adult) of caudal. Anal V 9-10. Pectoral as long- 

 as the head, extending to above third anal spine; ventral 

 extending nearly to origin of anal. Caudal sub truncate. 

 Caudal peduncle ?-g as long as deep. Olivaceous, \\ith 

 6 darker cross-bars^, the third bearing a blackish blotch 

 below the lateral line ; a blackish spot on the upper part of 

 the base of caudal ; fins dusky. Adult with nearly uniform 

 coloration. 



Southern Mexico ; Guatemala. 



1-7. (69-168 mm.) types of the Iluamuclial. 0. Salvin, Esq. 



species. 

 8-11. (188-21^4 mm,) Chiapas. O. Salvin, Esq. 



12-13. (53 and 76 mm.) Tequesixtlan. Dr. H. Gadow. 



35. Cichlosoma heterodontus. 



Heros {Cichlasoma) heterodontus, Vaill. & Pellegr. BuU. Mus. Paris, 



1902, p. 86. 

 Cichlasoma heterodontus, Pellegr. M(^m. Soc. Zool. France, xvi. 1003, 



p. 225 (1904) ; Meek, Zool. Pub. Columbian Mus. v. 1904, p. 215. 

 Cichlasoma Evermanni, Meek, t, c, p. 214, fiir. 70. 



