o38 Mr. C. T. Eeg-aii on the Fishes of the 



close together; lower with 1 or 2 pairs of car>iues, whicli are 

 well-separated ; cheek with 8 or 9 series of scales ; 8 gill- 

 rakers and 2 rudiments on the lower part of anterior arch. 

 Scales 33-34 ^, 2^ or 3 between lateral line and hase of 

 anterior part of soft dorsal. Dorsal XVIII 10-11, the 

 spines slightly increasing in length to the last, which is i 

 the length of head ; the soft fin, when laid hack, extending 

 to anterior J of caudal. Anal Yll 8. Pectoral | the length 

 of head or a httle more, extending to ahove origin of anal ; 

 ventral extending to origin of anal. Caudal rounded. 

 Caudal peduncle ^|-f as long as deep. Olivaceous. Avith 7 

 irregular dark hrown cross-bars forming a series of blotches 

 below the lateral line ; a dark stripe from upper part of eye 

 to operculum, and another from lower part of eye to sub- 

 operculum ; vertical fins with dark spots. 

 Lakes Managua and Nicaragua. 



1. (187 mm.) tj-pe of the species. Lake Managua. Capt. J. M. Dow. 



2. (195 mm.) Lake Nicaragua. Smithsonian Inst. 



64. Cichlosoma Dovii. 



Heros Dovii, Giiuth. Proc. Zool. Soc. 1864, p. 154, and Trans. Zool. 

 Soc. vi. 1869, p. 461, pi. Ixxiii. fig. 4 ; Jord. & Everm. Bull. U.S. 

 Nat. Mus. xlvii. 1898, p. 1535 ; Pellegr. Mem. Soc. Zool. France, 

 xvi. 1903, p. 2.34 (1904). 



Depth of body equal to length of head, 2| in the length. 

 Snout longer than eye, the diameter of which is 4-4A in the 

 length of head and greater than the intcrorbital width. 

 Depth of prseorbital |-| diameter of eye. Maxillary exposed 

 distally, extending to below anterior ^ of eye ; prsemaxillary 

 processes extending to above posterior margin of eye; lower 

 jaw projecting ; fold of the lower lip continuous ; upper 

 jaw with a pair of strong canines situated close together ; 

 lower jaw with 1 or 2 pairs of canines, which are well 

 separated ; cheek with 1() series of scales ; 8 gill-rakers on 

 the lower part of anterior arch. Scales 34-35 ^, 3^ between 

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

 XYIII 12, the spines increasing in length to the last, which 

 is ^ the length of head ; the soft fin, when laid back, 

 extending to anterior \ of caudal. Anal VI 9-10. Pectoral 

 § the length of head, extending nearly to above origin of 

 anal ; ventral extending to origin of anal. Caudal rounded. 

 Caudal peduncle |-| as long as deep. Brownish, witli 

 darker cross-bars forming a series of blotches below the 

 lateral line ; a dark stripe from upper part of eye to 



