22G 



Mr. C. T. Regan on the Fishes of the 



Herosfenestmtus, Giinth. <. e. p. 280; SteiuJ. Donkschr. Ak. Wien, 



xxiii. 18G4, p. G8, pi. i. fig. 2. 

 Cickluso?iia fenestratum, Jord. & Everni. Bull. U^. Xat. Mus. xlvii. 



1893, p. 1518. 

 Cichlusoma parma (part.), Jord. & Everm. t. c. p. 1519. 

 Cichlasoma fenestratum (part.), Pellegr. Mem. Soc. Zool. France, xvi. 



1903, p. 210 (1904). 

 CicMasoiiia parma, Meek, Zool. Pub. Columbian Mus. v. 1904, p. 218, 



pi. XV. 



Depth of body l|-2 in the length, length of head 2;i-3{. 

 Snout shorter than the postorbital part of head. Diameter 

 of eye 3i-4| in the length of head, interorbital width 2l-2|. 

 Depth of pneorbital %-\^ the diameter of eye. JNIaxillary 

 extending to between nostril and eye ; jaws equal anteriorly ; 

 fold of the lower lip not continuous ; cheek with 5 or 6 

 series of scales ; 8-10 gill-rakers on the lower part of the 

 anterior arch. Scales 31-33 J^, 3 or 3^ between lateral 

 line and base of anterior part of soft dorsal. Dorsal * 

 XVII-XVIII 11-13, commencing a!>ove the opercular cleft, 

 the spines oidy sliglitly increasing after the sixth, tie last 

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

 anterior part (young) or beyond the middle (adult) of 

 caudal. Anal Vl-Vil 8-9. Pectoral a little shorter than 

 the head, extending to above the vent ; ventral extending 

 nearly to origin of anal or slightly beyond. Caudal sub- 

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

 usually with 6 to 8 dark cross-bars and with a dark longi- 

 tudinal band from operculum to the basal part of caudal. 

 Sometimes this band is very strongly marked, and the cross- 

 bars may then be confined to the upper part of the body, or 

 may be wanting. 



Mexico. 



1-2. (98 and 145 mm.) types Mexico. 



M. Salle. 



17. Cichlosoma bifasciatum. 



Heros bifasciattis, Steiud. Denkschr. Ak. Wien, xxiii. 1864, pt. ii. 



p. 60, pi. ii. 

 Cichlasoma bifasciatum, Jord. k Everm. Bull. U.S. Nat. Mus. xlvii. 



1898, p. 1521; Pellegr. Mem. Soc. Zool. Irance, xvi. 1903, p. 217 



(1904J. 



* Of 17 examples 8 have XVII 12, 3 have XVII 11, 2 have XVII 13, 

 3 have XVIIl 12, and 1 has XVIII 13 dorsal rays. 10 have VI 9, 

 5 have VI 8, one has VII 8, and one VII 9 anal rays. 



