280 PROCEEDINGS OF THE ACADEMY OF [Apr., 



peduncle, but terminating above first two tubes of lower branch of 

 1. I. Slightly posterior from lower eye edge a dusky streak extends 

 obliquely across cheek to subopercle. Suborbital chain also marked 

 by broad-angled dusky streak, its point of divergence at beginning 

 of oblique dark streak extending across cheek. Several irregular 

 broken streaks or blotches of brownish on forehead. About eight 

 broad obscure transverse bands, at present ill-defined and some- 

 what irregular as to boundaries. From pectoral base they appear 

 still more obsolete as a lengthwise dusky shade, hardly a streak 

 or band, extending horizontally back toward caudal base. Third 

 obsolete transverse band, between upper 1. 1. and median lateral 

 streak, set out as large blackish blotch. Caudal base with 

 large blackish blotch, about equal to eye in size. Iris slaty. 

 Fins all with dull dusky-gray ground-color, and only ventral 

 slightly paler. Rayed dorsal with eight or nine vertical pale 

 dusky streaks, of same general tint of spinous portion of fin, 

 and extending mostly on basal and posterior portion of fin. 

 Rayed anal with similar streaks, about six in number. Caudal with 

 nine similar streaks, though first two interrupted by basal spot, and 

 all streaks parallel and slightly inclined forward. Other fins un- 

 marked. 



Length 54 mm. 



Type, No. 39,347, A. N. S. P. Rupununi River, British Guiana. 

 J. Ogilvie. 



Another example, No. 39,348, A. N. S. P., paratype, same data. 

 Head 2|; depth 2|; D. XIV, 6; A. Ill, 6, i; scales 21 in median 

 lateral series to caudal base, and 6 more on latter; 14 scales in upper 

 branch of 1. 1.; 5 scales in lower branch of 1. 1.; 9 predorsal scales; 

 snout 3yV in head; eye 3^; maxillary 3; interorbital 3|; length 

 50 mm. 



This species is closely related to Apistogramma ortmmmi (Eigen- 

 mann), though differs in coloration, the black superiorly median 

 lateral blotch not being present in that species according to the 

 figure and description. -- 



(Named for the Rupununi River.) 



Cichla ocellaris Schneider. 



Two examples, 183 and 105 mm. 



Crenicichla lugubris Heckel. 



One example 285 mm. 



Crenicicllla alta Eigenmann. 



One example 163 mm. 



22 Mem. Carnegie Mus., V, 1912, p. 506, PI. 68, fig. 1. 



