44 Annals of the Carnegie Museum. 



Cotypes, 1 6 specimens, 27-34 mm. Konawaruk. (C. M. Cat. 

 No. 1 162, a-d\ I. U. Cat. No. 11688.) 



Cotypes, 3 specimens, 27 mm. Rockstone sandbank. (C. M. 

 Cat. No. 1 163, a; I. U. Cat. No. 11689.) 



Cotypes, 8 specimens, 25-33 mm - Gluck Island. (C. M. Cat. 

 No. 1664, a, b ; I. U. Cat. No. 11690.) 



Head 3.75 ; depth nearly 5 ; D. 10 ; A. 1 1 ; scales 5 between D. 

 and V., 23 along a median series, 10 in front of dorsal. 



Eye 3 in head, a little less than snout, greater than interorbital,. 

 upper jaw projecting. 



Adipose fin over about middle of last anal ray ; dorsal beginning 

 behind the vertical from the origin of the ventrals. Pectorals reach- 

 ing half way to middle of ventrals, ventrals half way to base of last 

 anal ray. 



Upper jaw projecting, mid -dorsal line from head to adipose choco- 

 late,, on either side of which is a straw-colored stripe confluent into a 

 median line on the head to the tip of the snout. A similar chocolate 

 stripe on sides bounded below by another straw-colored stripe, both 

 concurrent with the back ; ventrad of the last is a chocolate band 

 widest above tips of pectorals, reaching the vanishing point above the 

 eye and below the tip of the dorsal ; a golden barm from upper part of 

 eye to upper caudal lobe, continued forward of eye as a red streak ; 

 a dark brown lateral band from tip of jaws to tip of lower caudal lobe ; 

 a horizontal streak below the eye. Some scales below the lateral band 

 with a brown spot ; two oblique, black cross-bands, one up and back 

 from last half of pectorals, the other up from before anal. Lower 

 caudal lobe black ; base of upper caudal lobe and of anal red ; anal 

 blackish. Fins otherwise hyaline. 



Pcecilobrycon erythrurus sp. no v. 



Type, 33 mm. (No. 1168 Carnegie Museum Catalog of Fishes.) 

 Rockstone sandbank. 



Cotypes, 7 specimens, 33-37 mm. Rockstone sandbank. (C. M. 

 Cat. No. 1 168, a, b ; I. U. Cat. No. 11693.) 



Cotypes, 4 specimens, 22-27 mm. Gluck Island. (C. M. Cat. 

 No. 1170, a; I. U. Cat. No. 11694.) 



Cotype, 1 specimen, 22 mm. Amatuk. (C. M. Cat. No. 1187, a.) 



Cotypes, 2 specimens, 32-33 mm. Rupununi Pan. (C. M. Cat. 

 No. 1 188, a; I. U. Cat. No. 11695.) 



