Haseman : Expedition to Central South America. 853 



This fish is h)cally known as " peixa da pcdra." 



46. Crenicichla macrophthalma Heckol. 



No. 2705, (1 cm., Manaus, .Nov. :?<), lOoc). 



2 1—22 



I). XX, <) to 1 1 ; A. I II, 7 to <); head ^^ to V.^i". I)<>res ; 57 to 70 



10 ' 



srali's in thi- first scries below the lateral line; (.leplh 5 to 6; eye 4 in 

 the head, cciiial to, or more than, the interorl)ital space, and equal to 

 the length of the snout; nostrils about equidistant between the eyes 

 and the tip of the snout or a little nearer the former; brownish, with a 

 black band around the snout and continued back of the eyes on the 

 operculum; some with faint lateral bands and cross-bars and nearly 

 all with either spots or cross-bars on the caudal and some faint spots 

 on the dorsal fin; some with dark margins on the vertical fins; all 

 with a small more or less ocellated caudal spot. 



I regard Crenicichla wallacei Regan as the young of C. macroph- 

 thalma. Young specimens from the Guapore, Amazon, and Essequibo 

 are identical. The extent of the ma.xillaries varies considerably. 

 No. 27o6a-g, 3.2-4.8 cm., Sao Antonio de Guapore, Rio Guapore, 



Aug. 10, 1909. 

 Xo. 2708, \illa Bella, Rio Beni, Bolivia. 



Almost colorless and with the preoperculum more denticulated 

 than in the other specimens. 

 Xo. 2707, 3.7 cm., Bastos, Rio Alcgre, June 26, 1909. 



This specimen is very slender, its depth being 7 in its length; 

 head 3; eye 3.5 in the head, a little greater than the snout, 1.33 times 

 the interorbital space and 3 times the preorbital width; maxillaries 



24 



not quite extending to the front margins of the eyes; pores ; two 



and one-half to three rows of scales between the lateral lines, and one 

 row' or less between the last half of the upper lateral line and the base 

 of the dorsal; A. Ill, 7; D. XIX, 9; three rows of more or less depres- 

 sible teeth in each jaw; eight gill-rakers on the lower anterior arch; 

 scales about sixty in a median row below the lateral line; caudal 

 peduncle one and one-half to two times as long as deep; nostrils nearer 

 the eyes than to the tip of the snout; dark brown with a band around 

 the snout extending back of the eyes to the base of the caudal, where 

 it ends in a sinall black spot. 



This species replaces C. vittata in the ^Amazon. The only marked 



