688 EIGENMANN— NEW FISHES FROM 



mandibular teeth slightly graduate in height from the third to the 

 first, the second tooth being the widest; the three first teeth of the 

 two mandibles forming a compact series in an open crescent ; fourth 

 tooth slightly recurved, much smaller than the third, the remaining 

 two teeth quite small (on the left side there is an abnormal gap 

 between the third and fourth teeth) ; the inner series of teeth begins 

 just within the last tooth of the outer series and consists of four 

 teeth ; symphysial tooth small ; maximum width between front and 

 rear series about 5 mm. 



Gill-rakers 11 -{-14, the longest 5 mm.; longest gill filament 

 II mm. 



Origin of dorsal 102 mm. from tip of snout, 106 from end of 

 scales at base of middle caudal rays ; exposed portion of longest 

 upper caudal ray 47 mm., of longest lower ray 51 mm. First de- 

 veloped anal ray equidistant with last dorsal ray from the end of 

 the scales of the middle caudal rays; first rudimentary ray 128 mm. 

 from tip of snout ; origin of ventrals 93 mm. from tip of snout ; 

 pectoral just reaching ventrals. 



Scales on the middle of the sides with as many as ten sub- 

 parallel radials, more toward the base of the anal. Lateral line 

 faint; a large axillary scale. 



Dark on sides and above, with steel blue to brassy lustre ; fins 

 dusky ; a large, obscure humeral band ; a large black spot on caudal 

 peduncle, most intense toward its end, fading out forward, con- 

 tinued on the membranes of the middle rays to their tip. 



18. Brycon meeki Eigenmann & Hildebrand, spec. nov. 



Many specimens from the Rios San Juan, Dagua, and Patia of 

 western Colombia. 



Head 3.8 to 4.55; depth 3 to 3.25; D. 10 or 11; A. ^t, to 35; 

 scales 12 or 13-60 to 70-7 or 8. 



Body elongate, compressed ; profile slightly concave over eyes, 

 elevated at nape ; head rather small ; snout blunt, 3.5 to 3.85 in head ; 

 eye 2.75 to 4; interorbital 2.3 to 3.1 ; mouth moderate; upper jaw 

 strongly projecting; maxillary reaching opposite middle of eye, 2.1 

 to 2.4 in head ; premaxillary teeth laterally in 3 series, anteriorly 



