CICHLOSOMA. 21 
times in the length of the head in four specimens of the latter species, 85 to 260 mm. 
in total length. C. gadovit is subject to the same range of variation in colour- 
markings as C. fenestratum ; in some specimens the dark cross-bars are strongly marked 
and the longitudinal band is scarcely visible, in others the cross-bars are faint and the 
longitudinal band is very strong. It is curious that Dr. Meek, who has had the 
privilege of collecting these fishes, should attempt to distinguish in this respect between 
C. parma (=fenestratum), with the lateral band faint or absent, and C. melanurwm 
(=gadovii), with a conspicuous dark lateral band. 
12. Cichlosoma anguliferum, Giinth., 1862. 
Cichlosoma intermedium, var. anguliferum, Regan, Ann. Mag. N. H. (7) xvi. 1905, p. 233. 
Hab. Guatema.a, Rio de Santa Isabel (Salvin), Rio Santa near Cahabon (Sarg). 
The slight difference in colour-markings between this species and the next appears 
to be correlated with other slight peculiarities, so that I am inclined to provisionally 
recognize them as distinct. In C. anguliferum the interorbital space is a little wider 
and the dorsal spines rather higher than in C. intermedium, the last spine measuring 
rather more than ? the length of the head in the former and distinctly less than 3 of 
the head in the latter species. 
13. Cichlosoma intermedium, Giinth., 1862. 
Cichlosoma intermedium (part.), Regan, Ann. Mag. N. H. (7) xvi. 1905, p. 282. 
Hab. GuatemaLa, Lake Peten (Salvin). 
14. Cichlosoma pavonaceum, Garman, 1881. 
Cichlosoma pavonaceum, Regan, Ann. Mag. N. H. (7) xvi. 1905, p. 234. 
Hab. Norvuern Mexico, Monclova in Coahuila. 
15. Cichlosoma sieboldii, Kner & Steind., 1864. 
Cichlosoma sieboldii, Regan, Ann. Mag. N. H. (7) xvi. 1905, p. 235. 
Hab. PAnaAMa.—CoLoMBIA. 
Heros deppti, Heckel, 1840, from Mexico, may be allied to this species. 
16. Cichlosoma godmani, Giinth., 1862. 
Cichlosoma godmanni, Regan, Ann. Mag. N. H. (7) xvi. 1905, p. 235. 
Hab. Guatemata, Rio Cahabon (Salvin). 
17. Cichlosoma irregulare, Giinth., 1862. 
Cichlosoma irregulare, Regan, Ann. Mag. N. H. (7) xvi. 1905, p. 236°. 
Hab. Guatemata, Lake Yzabal, Rio Gerénimo, Rio Usumacinta (Salvin), Lake San 
Cristobal (Sarg). 
