Percoidea, or Perch-like Fishes 299 
“perch” of the Sacramento. The latter is a large and gamy 
fish, valued as food and interesting as being the only fresh- 
Fig. 233.—Rock Bass, Ambloplites rupestris (Rafinesque.) Ecorse, Mich. 
water fish of the nature of perch or bass native to the west of 
the Rocky Mountains. The numbers of this species, according 
Fie. 234.—Banded Sunfish, Mesogonistius chatodon (Baird). Delaware River. 
to Mr. Will S. Green of Colusa, California, have been greatly 
reduced by the introduction of the catfish (Amezurus nebulosus) 
