

83 



^» .■••.' , i 



^*.- 



ci^^-?.: 



>!:»- ■-;.. 





Fig. 16. - Dorsal view of right maxillary barbel of nuptial male. 



(A) Tetranematichthys quadrifilis (MCNG 3018); {B) Ageneiosus 

 ucayalensh (MHNG 2394.36); iC)A. vittatus (MCNG 5862). 

 Scale: A = 5 mm; B-C = 2 mm. 



