316 Mr. C. T. Regan o?i the Fishes of the 



XXXV I.— ^ Revision of the Fishes of the Ameiican Cichlid 

 Genus Cichlosoma and of the Allied Genera. By C. Tate 

 Eegan, B.A, 



[Continued from p. 243,] 



Section 9, 



Two species from Central America agree in most resp^jcts 

 ■R'itli those of the preceding section, but differ in the some- 

 what fewer teeth, which are more distinctly enlarged 

 anteriorly. Dorsal XVI-XVII 11-12. Anal VII 8-9. 



38. C/chlosoma margaritifertim. 



Heros maryaritifer, Giiutli. Cat. Fish. iv. p. 287 (1862), and Trans, 



Zool. Soc. vi. 1869, p. 450, pi. Ixxi. fig. 2. 

 Cichlasomamaryaritifcnun, Jord. & Everm. Bull. U.S. Nat. Mus. xlvii. 



1898, p. 1519; Pellegr. Mem. Soc. Zool. France, xvi. 1903, p. 211 



(1904). 



Depth of body 21 in the length, length of head 3. Snout 

 slightly longer than postorbital part of head. Diameter of 

 eye A\ in the length of head, interorbital width 3, Depth 

 of prseorbital \X the diameter of eye. Maxillary not ex- 

 tending to the vertical from anterior margin of eye; prse- 

 maxillary processes not extending to above eye; jaws equal 

 anteriorly ] fold of the lower lip slightly interrupted ; cheek 

 with 5 series of scales; 12 gill-rakers on the lower part of 

 anterior arch. Scales 31 ^, 3 between lateral line and base 

 of anterior rays of soft dorsal. Dorsal XVII 11, commencing 

 above the opercular cleft, the spines subequal from the sixth, 

 the last less than ^ the length of head ; the soft fin, when 

 laid back, extending to the anterior part of caudal. Anal 

 VII 9. Pectoral a little shorter than the head, extending 

 to the third or fourth anal spine ; ventral extending to 

 second anal spine. Caudal slightly emarginate, with rounded 

 lobes. Caudal peduncle deeper than long. Brownish, with 

 6 or 7 dark cross-bars and a dark spot at the base of caudal ; 

 each scale of the side of the body with a white pearl-like 

 spot ; tins, except the pectoral, dusky, the dorsal with some 

 oblique stripes, the caudal with clear spots. 



Guatemala. 

 1. (164 mm.) type of the species. Guatemala. 0. Saldn, Esq. 



39. Cichlosoma citrinellum. 



Jlcros citrinellus, Giinth. Proc. Zool. Soc. 1864, p. 153, and Trans. Zool. 

 Soc. vi. 1869, p. 458, pi. Ixxi. fig. 1 ; Jord. & Everm. Bull. U.S. Nat. 



