American Cichlid Genus Ciclilo.soma. 237 



of liead, not extending so far as the ventral^ which nearly 

 reaches the origin of anal in the young, but not in the adult. 

 Caudal subtruncate. Caudal peduncle li-l§ as long as 

 deep. Brownish, with blackish cross-bars bearing a series 

 of blotches below the lateral line, which may be more or less 

 confluent to form a longitudinal band ; some light blue spots 

 on tlie side of the head. Vertical fins dusky. 

 Guatemala; Chiapas. 



1. (144 mm.) type of Guatemala. 0. Salviu, Esq. 



the species. 



2. (150 mm.) Guatemala. 0. Salvin, Esq. 

 3-5. (112-124 mm.) Rio Gerouimo. 6. Salvin, Esq. 



6. (114 mm.) Lake Yzabal. O. Salvin, Esq. 



7-12. (88-193 mm.) Rio Usamacineta. O. Salvin, Esq. 



l;:i-14. (168 and 260 mm.) Lake San Cristobal. F. C. Sarg, Esq. 



29. Cichlosoma lentiginosum. 



Heros lentiginosus, Steind. Denkschr. Ak. Wieu, xxiii. 1864, p. 62, 



pi. iii. fig. 1, 

 Cichlasoma lent'ujinosum, Jord. & Everm. Ball. U.S. Nat. Mus. xlvii. 



1898, p. 1524 ; Pellegr. Mem. Soc. Zool. France, xvi. 1903, p. 217 



(1904). 



Depth of body 2n-.2f in the length, length of head Z\. 

 Snout about as long as postorbital part of head. Diameter 

 of eye nearly 5 in the leugth of head, interorbital width 2|-. 

 Depth of prseorbital 1^ the diameter of eye. Maxillary not 

 nearly extending to below the eye ; jaws equal anteriorly ; 

 fold of the lower lip not continuous ; cheek with 6 series of 

 scales ; 10 gill-rakers on the lower part of the anterior arch. 

 Scales 34 ^. Dorsal XVII 13, commencing above the 

 extremity of operculum, the last spine \ the length of head ; 

 soft fin, when laid back, extending a little beyond the base 

 of caudal. Anal VI 9. Pectoral \ the length of head, 

 extending nearly to above the vent ; ventral extending 

 nearly to origin of anal. Caudal slightly emargiuate, with 

 rounded lobes. Caudal peduncle a little longer than deep. 

 Olivaceous, with 6 or 7 obscure darker cross-bars and with 

 numerous small dark brown spots ; vertical fins with dark 

 spots. 



Mexico. 



The typical example measures 215 mm. in total length. 



Section 7. 



Two species from Lake Nicaragua agree with those of the 

 preceding section in all essential characters, I)ut have a 



