318 Mr. C. T. Regan on the Fishes of (he 



40. Cichlosoma ei-ythraicm. 



Heros enjfhrcsu.*, Gnnih. Trans. Zool. Soc. ri. 1800, p. 457, pi. \xxr. 

 fig. 2 ; Jord. & Everm. Bull. U.S. Nat. Mu8. xlvii. 1898, p. 1531 ; 

 Pellegr. Mem. Soc. Zool. France, xvi. 1903, p. 239 (1904). 



Depth of body 2^ in the length, length of head 2i. Snout 

 as long as postorhital part of head. Diameter of eye 4^ iu 

 the length of head, interorbital width 3. Depth of jjrse- 

 orhital equal to diameter of eye. JSIaxillary not extending 

 to below the eye ; prseraaxillary processes extending to above 

 anterior ^ of eye; jaws equal anteriorly; lips thick, the 

 lower with a continuous fold ; cheek with 5 series of scales ; 

 8 gill-rakers on the lower part of anterior arch. Scales 31 j^, 

 3 between lateral line and base of anterior rays of soft 

 dorsal. Dorsal XVII 12, commencing above the opercular 

 cleft, the spines subequal from the sixth to the fifteenth, 

 thence increasing to the last, which is a little more than ^ 

 the length of head. Anal VII 8. Pectoral nearly as long as 

 the head, extending to above the fourth anal spine ; ventral 

 extending beyond origin of anal. Caudal peduncle f as long 

 as deep. Brownish, obscurely marbled with darker, and 

 with some dark spots on the posterior part of the body ; fins 

 pale yellow. 



Lake Managua, Nicaragua. 



1. (180 mm.) type of the species. Lake Managua. Capt. J. M. Dow. 



41. Cichlosoma lobochilus. 



Heros lobochilus (part.), Giinth. Trans. Zool. Soc. ri. 1869, p. 457, 

 pi. Ixxv. fig. 1 ; Jord. & Everm. Bull. U.S. Nat. Mus. xlvii. 1898, 

 p. 15.30; Pellegr. Mem. Soc. Zool. France, xvi. 1903, p. 240 (1904). 



Depth of bofly 2^ in the length, length of head nearly 3. 

 Snout as long as postorbital part of head. Diameter of eye 

 4^ in tl'.e length of head, interorbital width 3. Depth of 

 prseorbital equal to diameter of eye. Maxillary not extend- 

 ing to below the eye ; pra^maxillary processes extending to 

 above anterior ^ of eye; jaws equal anteriorly; upper and 

 lower lip each forming a large fleshy triangular flap ; cheek 

 with 5 series of scales ; 9 gill-rakers on the lower part of 

 anterior arch. Scales 31 j^, 2^ between lateral line and base 

 of anterior rays of soft dorsal. Dorsal XVII 11, com- 

 mencing above the opercular cleft, the spines subequal from 

 the seventh to the fourteenth, thence increasing in length to 

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

 back, extending to middle of caudal. Anal VII 9. Pectoral 

 nearly as long as the head, extending to above third anal 



