308 CHROMIDES. 



total length, the length of the head three times and a half. A black 

 spot at the root of the caudal fin ; an indistinct dark streak from the 

 eye to the angle of the operculum. Scales of the lateral line white, 

 with black margins. (Heck.) 

 Eio Negro. 



Described from a specimen 9 inches long. 



5. Crenicichla saxatilis. 



Scifena, L. Mus. Ad. Fried, p. 65. tab. 31. fig. 1. 



Sparus saxatilis, L. Si/st. i. p. 468. 



Spams, sp., Gronov. Mus. Ichth. ii. p. 29. tab. 6. fig. 3. 



Scarus, Gronov. Zoophx/l. p. 67. 



Perca saxatilis, Bl. taf. 309. 



Ciclila labrina, Agass. in Spix, Pise. Bras. p. 99. tab. 62. fig. 1. 



Crenicichla saxatilis, Heck. Brasil. Fliiss-Fische, p. 432. 



lepidota, Heck. I. c. p. 429. 



Scarus pavoninus, Gronov. Syst. ed. Gray, p. 63. 



D. J5. A. |. L. lat. 54. L. transv. 7/14. 



Snout moderately produced, its length being equal to the width of 

 the interorbital space. The height of the body is contained four 

 times and two-thirds in the total length, the length of the head three 

 times and threo-foiu-ths. A black ocellus at the root of the caudal ; 

 a brown blotch behind the shoulder, connected with the eye by a 

 brown band ; a brown spot below the orbit. Young specimens have 

 sometimes a brown longitudinal band from the snout to the caudal fin. 



Brazil. Guiana. 



a. Half-grown. River Cupai (800 miles from the sea). Purchased 



of Mr. Stevens. 

 h. Young. River Capin. Purchased of Mr. Stevens. 

 c, d, e. Half-grown. Demerara. Presented by Dr. Hancock. 

 f-g. Half-grown. British Guiana. Presented by Sir R. Schomburgk. 

 h, i. Adult. Dutch Guiana. Purchased of Mr. Frank. 

 k. Half-grown : skin. From Gronow's Collection. 



Variety : a series of black blotches along the lateral line. 

 a. Fine specimen. "West Indies ? Purchased of Mr. Scrivener. 



Crenicichla frenata (Gill, Freshw. Fish. Trinidad, in Ann. Lye. Nat. 

 Hist. New York, vi. 1858) is very closely alHed to this species. 



6. Crenicichla lacustris. 



Cycla lacustris, Castdn. Anim. noiiv. on rares Amir. Sud, Poiss. p. 19. 

 pi. 8. fig. 3. 



D.l«. A.^. 



13 • 9 



Scales not very small. Snout moderately produced. The height of 

 the body is one-sixth of the total length. A black spot at the root 

 of the caudal ; another on the middle of the spinous dorsal ; body 

 brownish, dotted with black. {Cast.) 



Bahia. 



