332 J\lr. C. T. Regan on the Fishes of the 



Depth of prteorbital i-f the diameter o£ eye. Maxillary 

 scarcely exposed, extending to below the anterior margin of 

 eye ; pnemaxillary processes extending to above anterior 

 margin of eye or a little beyond; jaws equal anteriorly or 

 the lower slightly projecting ; fold of the lower lip in- 

 terrupted or subcontinuous ; upper jaw with the 2 anterior 

 teeth of the outer series more or less distinctly differentiated 

 as a pair of canines ; lower jaw with the 3 anterior teeth on 

 each side forming more or less distinct canines ; cheek with 

 5 or 6 series of scales ; 7 or 8 gill-rakers on the lower part 

 of anterior arch. Scales 28-31 *^, 3^ or 4 between lateral 

 line and base of anterior rays of soft dorsal. Dorsal XVII- 

 XIX 8-10, the spines subequal from about the sixth to the 

 fourteenth, thence increasing to the last, which is about 

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

 middle of caudal or beyond. Anal VIIl-X 7-8. Pectoral 

 |-| the length of head, extending to above third anal spine ; 

 ventral extending well beyond origin of anal. Caudal 

 rounded. Caudal peduncle ^-§ as long as deep. Body with 

 about 8 dark cross-bars, which become obscure in the adult, 

 the third bearing a blackish blotch below the lateral line ; 

 sometimes a longitudinal band from eye to lateral blotch ; 

 usually some light blue spots on the head and one on each 

 scale of the side of the body ; a dark spot, often ocellated, 

 on the upper part of the base of caudal ; vertical fins with 

 series of dark spots. 



Southern Mexico; British Honduras (? Jamaica). 



1-14,15-18. (61-130 mm.) British Honduras. Rev. J. Robertson. 

 19-22. (81-107 mm.) Rio de Sarabia. Dr. A. 0. Buller. 



57. Cichlosoma iirophthalmus. 



Seros wophthalmus, Giinth. Cat. Fish. iv. p. 291 (1862), and Trans. 



Zool. Soc. vi. 1869, p. 454, pi. Ixxii. fig. 1 ; Steind. Denkschr. Ak. 



Wien, xxiii. 1864, p. 66, pi. v. fig. 3 ; Jord. & Everm. Bull. U.S. 



Nat. Mus. xlvii. 1898, p. 1537 ; Everm. & Goldsborough, Bull. U.S. 



Fish. Comm. xxi. 1902, p. 157, fig. ; Pellegr. M6m. Soc. Zool. France, 



xvi. 1903, p. 233 (1904). 

 Heros Troscheli, Steind. Sitzb. Ak. Wien, Iv. 1867, p. 524, pi. iv. ; 



.lord. & Everm. /. c. ; Pellegr. /. c. 



Depth of body 2-2| in the length, length of head 2§-27. 

 Snout as long as eye, the diameter of which is 3~^-3f in the 

 length of head, interorbital width 3-3|-. Depth of praj- 

 orbital |-^ the diameter of eye. Maxillary more or less 

 exposed distally, extending to below anterior margin of eye; 

 praemaxillary processes extending to above anterior ^ of 

 eye or slightly beyond; lower jaw slightly projecting ; fold 



