232 l\v. C. T. Regan on fhe Fis/,es of the 



22, Cichlosoma Gadovii, sp. n. 



? Cichlosoma melanurum {non Giiutli.), Meek, Zool. Pub. Columbian 

 Mus. v. 1904, p. 219. 



Depth of body 2^-2= in the length, length of head 3-3],. 

 Snout a little shorter than postorbital part of head. 

 Diameter of eye 4-4| in the length of head, interorhital 

 ■width 2|— 2§. Depth of prseorbital 1-1 1 the diameter of eye. 

 Maxillary not extending to below the eye; jaws equal 

 anteriorly; fold of the lower lip not continuous; cheek witli 

 5 series of scales ; 8 gill-rakers on the lower part of anterior 

 arch. Scales 30 ^, 3 between lateral line and base of 

 anterior rays of soft dorsal. Dorsal XVI-XVII 12, com- 

 mencing above the extremity of operculum, the spines sub- 

 equal from the sixth or seventh to tlie thirteenth or four- 

 teenth, thence increasing to the last, which is a little less 

 than I the length of head ; the soft fin, when laid back, 

 extending to anterior ^ of caudal. Anal VI 9. Pectoral | 

 the length of head, extending nearly to above the vent ; 

 ventral extending nearly to origin of anal. Caudal sub- 

 truncate. Caudal peduncle |^-i as long as deep. Olivaceous, 

 with obscure darker cross-bars and a dark longitudinal band 

 from operculum to base of caudal ; vertical fins dusky. 



Southern Mexico. 



1-2. (190 and 241 mm.) types of Motzorongo. Dr. H. Gadow. 



the species. 



23. Cichlosoma intermedium. 



Heros intermedins, Giintb. Cat. Fisb. iv. p. 298 (1862), and Tran?. 



Zool. Soc. vi. 1869, p. 468, pi. Ixxviii. %. 1. 

 Heros. anguUfer, Giintb. I. c. and t. c. p. 469, pl. Ixxxt. fig. 1. 

 Acarn rectangiilaris, Steind. Denkscbr. Ak, Wien, xxiii. 1864, p. 57, 



pl. i. fig. 1. 

 Cichlnsoma rectavqidare, Jord. & Everm. Bull. U.S. Nat. Mus. xlvii. 



1898, p. 151.5 : Pelleor. M.5m. Soc. Zool. France, xvi. 1903, p. 205 



(1904) ; Meek, Zool. Pub. Columbian Mus. v. 1904, p. 216. 

 Cichlasoma angtdiferum, Jord. & Everm. t. c. p. 1517. 

 Cichlasoma intermedium, Jord. & Everm. I. c. ; Pellegr. t. c. p. 200. 



Depth of body 2l-2§ in the length, length of head 3-3|. 

 Snout as long or nearly as long as postorbital part of head. 

 Diameter of eye 3|-5 in the length of head, interorbital 

 width 2^-2f. Depth of prteorbital |-lf the diameter of 

 eye. Maxillary not extending to the vertical from anterior 

 margin of eye ; jaws equal anteriorly ; fold of the lower lip 

 not continuous ; cheek with 4-6 series of scales ; 7 or 8 gill- 

 rakers on the lower part of anterior arch. Scales 31-33 j^j 



