PLATE 11. 
Fig. 1. Gymnocorymbus ternetzi (Boulenger). 
11435 I. U. M. 39 mm. to base of caudal. Cotype. Descalvados, Paraguay. 
Fig. 2. Gymnocorymbus thayeri Eigenmann. | 
19242M.C.Z. 40mm. Type. Amazon. 
