Figure 25. Narcine brastliensis. A Side view of tail of specimen illustrated in Fig. 24A. B Ventral view of pelvics 

 of same. C Ventral view of pelvics of female, 450 mm long, from Rio de Janeiro, Brazil (Harv. Mus. Comp. 

 ZooL, No. 643). D Side view of tail of male, 270 mm long, from Rio de Janeiro, Brazil (Harv. Mus. Comp. 

 ZooL, No. 643). .ff Nostrils and mouth of female, 450 mm long (Harv. Mus. Comp. ZooL, No. 643), about 1.5 X. 

 F Lower surface of disc of female, 258 mm long, from New Smyrna Beach, Florida (Harv. Mus. Comp. ZooL, 

 No. 36398), with skin dissected away from left-hand side to show electric organ somewhat diagramatically. 

 G Eye and spiracle of another female of about same size and from same locality, about 1.2 X. // Upper teeth of 

 female, 450 mm long, from Rio de Janeiro, Brazil (Harv. Mus. Comp. ZooL, No. 643), about i 5 X . y Upper 

 teeth of male, 396 mm long, from Rio Parah}ba, Brazil (Harv. Mus. Comp. ZooL, No. 308), about IJX- 



