PLATE 54. 

 (Mem. Carnegie mus., 5, Plate 52). 



Fig. 1. Astyanax potaroensis Eigenmann. 



1037 C. M. 58 mm. Type. Amatuk, British Guiana. 

 Fig. 2. Astyanax abramoides Eigenmann. 



1028 C. M. 112 mm. Type. Tumatumari, British Guiana. 

 Fig. 3. Astyanax polylepis (Giinther). 



1419b C. M. 84 mm. Tumatumari, British Guiana. 

 Fig. 4. Astyanax wappi (Cuvier & Valenciennes). 



From a specimen in British Museum. 

 Fig. 5. Astyanax polylepis (Gunther). 



1419 C. M. 50 mm. Tumatumari, British Guiana, 



