BRIEF NOTES ON FISHES. 371 



Like most fishes that habitually frequent weedy and 

 muddy waters, this sunfish is really nocturnal in its 

 habits, and it is for this reason that it is so little known. 

 Like all other nocturnal fishes, too, it has a well-developed 

 voice ; but of this hereafter. In a subsequent chapter 

 this subject will be treated of at length ; and the mud- 

 sunfish will again come under our notice. 



