128 



MARINE AND FISHERIES 



EXPLANATION OF PLATES. 

 PLATE XIII. 



5 GEORGE v., A 1915 



Fig. 1. Hexagenia bilineata Say. 

 Fig. 2. Ecdyurus macuKpennis Walsh. 

 Fig. 3. Ecdyurus lucidipennis Clemens. 

 Fig. 4. Ecdyurus pullus Clemens. 

 Fig. 5. Ephemerella lineata Clemen?. 



PLATE XIV. 



Fig. 1. Ephemerella hicolor Clemens. 



Fig. 2. Bostis propinquus Walsh. 



Fig. 3. Cloion dubium Walsh. 



Fig. 4. Venation of wing pad of Siphlurus flexus Clemens. 



Fig. 5, Wings of Siphlurus flexus Clemens. 



Fig. 6. Fore-claw of nymph of Siphlurus flexus Clemens. 



Fig. 7. Fore-claws of imago of Siphlurus flexus Clemens. 



