1905.] FISHES OF THE FAMILY CICHLID^. 159 



forming 4 series in the upper jaw, 3 in the lower. 10 or 11 gill- 

 rakers on the lower part of anterior arch. Scales denticulated 

 except on the head and the lower parts of the thorax and 

 abdomen, 48-60 jf^n? 38-46 in a longitudinal series below the 

 lateral line, 2-3| between last dorsal spine and lateral line, 

 2 between upper and lower lateral lines. Lateral line 21- 

 24 + 7-10. Dorsal (XYI) XVII-XYIII 13-14 (15-16), the 

 spines subequal or only slightly increasing from the sixth, the 

 last ^-| the length of head. Anal III 8-10. Pectoral f-|, 

 ventral '^|-| the length of head. Caudal peduncle deeper than long. 

 Brownisli ; a dark stripe from snout through eye to extremity 

 of operculum, continued on the body as a longitudinal band in 

 the young ; a dark oblique stripe below the eye ; a dark blotch 

 above the pectoral ; sometimes obscure cross-bars on the upper 

 part of the body ; a dark spot or ocellus on the upper half of the 

 base of caudal ; vertical fins greyish, the dorsal sometimes with 

 a blackish edge, the soft dorsal and caudal sometimes with clear 

 spots. 



Southern Brazil ; Rio de la Plata. 



1. (159 mm.) Rio Grande do Sul. Dr. H. von Ihering. 



2. (69 mm.) Upper Paraguay. Dr. A. Borelli. 



3. (76 ram.) Carandasiuho, Matto Grosso. Dr. A. Borelli. 



4. (162 mm.) Paraguay. Dr. Ternetz. 



2. Okenicichla saxatilis. 



Linn. Mus. Ad. Frid. p. 65, pi. xxxi. fig. 1 (1754). 



Gronov. Mus, Ichth. ii. No. 185, p. 29, pi. vi. fig. 3 (1756). 



Sparus saxatilis Linn. Syst. Nat. (ed. 10), p. 278 (1758). 



Scams rufescens Gronov. Zoophyl. p. 67, pi. vi. fig. 3 (1763). 



Perca saxatilis Bloch, Ausl. Fische, vi. p. 79, pi. 309 (1792). 



Cichla lahrina Agass. in Spix, Pise. Bras. p. 99, pi. Ixii. fig. 1 

 (1829) ; Schomb. Fish. Guiana, p. 139, pi. iii. (1843). 



Crenicichla saxatilis Heck. Ann. Mus. Wien, ii. 1840, p. 432 ; 

 Gunth. Cat. Fish. iv. p. 308 (1862) ; Eigenm. & Bray, Ann. Ac. 

 N. York, vii. 1894, p. 620; Pellegr. Mem. Soc. Zool. France, 

 xvi. 1903, p. 373 (1904). 



Cychla rutilans Schomb. t. c. p. 142, pi. v. 



Scaj^us pavoninus Gronov. Oat. Fish. p. 67 (1854). 



Crenicichla frenata Gill, Ann. Lye. X. York, vi. 1858, p. 386, 



Crenicichla proteus Cope, Proc. Ac. Philad. xxiii. 1872, p. 252 ; 

 Pellegr. 1. c. 



Crenicichla proteus, var. argynnis Cope, 1. c. 



Crenicichla saxatilis, var. semicincta Steind. Denkschr. Ak. 

 Wien, lix. 1892, p. 376 ; Pellegr. t. c. p. 374. 



Crenicichla argynnis Pellegr. t. c. p. 373. 



Crenicichla saxatilis, var. albo2mnctata Pellegr. t. c. p. 374. 



Crenicichla vaillanti Pellegr. Bull. Mus. Paris, 1903, p. 124, 

 and t. c. p. 376. 



Depth of body 3|-4f in the length, length of head 3-3|. 

 Proc. Zool. Soc— 1905, Yol. I. No. XI. 11 



