eigenmann: the FRESHWATER FISHES OF BRITISH GUIANA 327 



Two hundred and three specimens, 54-75 mm. Bartica. (C. M. Cat. No. 

 1335a-z; I. U. Cat. No. 11825.) 



Twelve specimens, 48-71 mm. Rockstone. (C. M. Cat. No. 1336a-c; I. U. 

 Cat. No. 11826.) 



Eight specimens, 42-56 mm. Gluck Island. (C. M. Cat. No. 1337a-b; 

 I. U. Cat, No. 11827.) 



Fifty-one specimens, 44-80 mm. Crab Falls. (C. M. Cat. No. 1338a-.?'; 

 I. U. Cat. No. 11828.) 



Twenty-two specimens, 45-58 mm. Konawaruk. (C. M. Cat. No. 1339a-e; 

 I. U. Cat. No. 11829.) 



Seven specimens, 45-82 mm. Warraputa. (C. M. Cat. No. 1340a-o; I. U. 

 Cat. No. 11830.) 



Three hundred and fifteen specimens, 42-95 mm. Tumatumari. (C. M. 

 Cat, No. 1341a-z; I. U. Cat, No. 11831.) 



Twenty specimens, 45-94 mm. Creek below Potaro Landing. (C. M. Cat. 

 No. 1342a-e; I. U. Cat. No. 11832.) 



Four specimens, 51-61 mm. Erukin. (C. M. Cat. No. 1343a-6; I. U. Cat. 

 No. 11833.) 



Four specimens, 62-108 mm. Malali. (C. M. Cat. No. 1344a-6; I. TJ. Cat. 

 No. 11834.) 



Head 3.75-4.4; depth 3-3.5; D. 11; A. 22-27; scales 5-34-4; eye 2.5-3, about 

 equal to the interorbital. 



Base of upper caudal lobe in life conspicuously yellow or orange or cherry; 

 base of lower caudal lobe, adipose fin, dorsal rays, and anal lobe less intensely yellow 

 or orange; upper caudal lobe beyond the basal spot black (of varying intensity); 

 a small, horizontally oval, or round, humeral spot over the second and third scales 

 of the lateral line. 



184. Mcenkhausia cotinho Eigenmann. 

 Moenkhausia cotinho Eigenmann, Bull. Mus. Comp. Zool., LII, 1908, 104; Repts. 



Princeton Univ. Exp. Patagonia, III, 1910, 438. 



Thirty-five specimens, 34-55 mm. Wismar. (C. M. Cat, No. 1312a-,/'; 

 I. U. Cat. No. 11813.) 



Thirty-three specimens, 42-60 mm. Malali. (C. M. Cat, No. 1313a-j; 

 I. U. Cat, No. 11814.) 



Twenty-two specimens, 52-62 mm. Tukeit, (C. M. Cat. No. 1314a-b; 

 I. U. Cat. No. 11818.) 



One specimen, 64 mm. Kangaruma. (C. M. Cat. No. 1315a.) 



