MINNOW FAMILY (Cyprinidae) 



Key to the various members of the minnow family found in Maine 



1. Upper Hp connected with the skin of snout by a bridge of tissue 

 across which the premaxillary groove does not pass 2 



Upper lip separated from skin of snout by the deep premaxillary 

 groove continuous across the midline 3 



2. Snout projecting far beyond the horizontal mouth 



Longnose Dace 



Rhinichtliys 

 cataractae 



(Valenciennes) 



Snout scarcely projecting beyond the somewhat oblique mouth 



Blacknose Dace 



Rhinichtliys 

 atratiihis 



(Hermann) 



61 



