44 



barred, cheeks with three oblique bars. D. X, 13; A. Ill, 10. 

 Scales 10 or 11-72 to 75-17. Length to two feet. 



Originally occurred in the eastern United States, excepting 

 from Canada south to the Potomac, east of the Green and 

 Alleghany Mountains. It has now been introduced generally, 

 and also in Europe. Found in Greenwood Lake, Passaic River, 

 etc. A bold, voracious fish, destructive of other species, and 

 considered, next to the trout, as the " gamiest" of all fishes. 



Micropterus salmoides {Lac). 

 Large-mouthed or Oswego Bass. 



Body more compressed and deeper than in the preceeding 

 species. Mouth extremely large. Dorsals low. Dark green, 

 silvery below with only indistinct traces of the blackish band, 

 wmich is characteristic of the young. D. X, 13; A, III, 11. 

 Scales 8-68-16. Length to 2y 2 feet. 



Original distribution similar to that of the last, but now of 

 wider occurence. Found in most all of the nearby lakes and 

 rivers. 



The Oswego bass is even more destructive to fish than the 

 other. It will eat any fish which it can manage to get into its 

 mouth and will lie on the bottom for days so gorged that it 

 cannot stir. In voracity it is only equaled, but hardly excel- 

 led by the pike. This bass bears captivity well. 



Family Percidae. 



Perches. 

 Body elongate, teeth usually villiform, sharp on the lower 

 pharyngeals ; scales ctenoid ; opercle with a spine ; fins large, 

 dorsals separate ; intestinal canal short ; air bladder small or 

 wanting. A widely distributed fresh water family. The 

 genus Etheostoma of eastern North America embraces a large 

 number of species and is considered of recent origin. 1 Many 

 of the species grade into each other. 



Boleosoma nigrum olmstedi (Storer). 

 Tesselxated Darter. 

 Slender : fins high ; spines weak ; no scales on back in 



x See Jordan's "Manual." Also D. S. Jordan, in Bull. 8, U. S. Fish Com- 

 mission for 1888, loc. cit., under Xotropis above. 



