52 N. J. Agricultural Experiment Station, Bulletin 348 



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Fig. 22. The Fresh-water Killy; male above, female below. (From Jordan 

 and Evermann, U. S. Nat. Mus., Bui. 47). 



The fresh-water killy {Fitndiihis diophanus Le Sueur) which 

 reaches a length of about 5 inches, has the same range as the com- 

 mon killifish but shows a tendency to confine its movements to open 

 channels and currents. The young mingle and move with the form- 

 er but as they grow older separate more. This species differs from 

 its allies in that it has a tail squarely cut off and not rounded. The 

 females are olivaceous. The sides are traversed by 15 to 20 pearly 

 white crossbands. 



Fig. 23. The Rainwater Fish. (From Jordan and Evermann, U. S. Nat. 



Mus., Bui. 47). 



