232 FISHES 



2. R. chrysops, (Raf.) Gill. White Bass. Striped 

 Lake Bass. Silvery, with six or more dark stripes, 

 sometimes " so interrupted and transposed as to appear 

 like ancient church music." D. IX — 1, 12; A. Ill, 13; 

 lat. 1. 55. Great Lakes, Upper Mississippi Valley and 

 N. {Labrax multilineatus^ notatus^ albidiis and osculatii 

 of authors.) 



2. MOROl\JE, Mitchill. White Bass. 

 < Liohrax^ Cuvier. 



1. M. americana, (Gmel.) Gill. White Perch. Whit- 

 ish, usually faintly striped; depth 3 in length; D. IX — I, 

 12; A. Ill, 9; lat. 1. 50. Atlantic Coast, abundant also 

 in fresh water ponds, etc., coastwise; variable. {L.mu- 

 cronatus^ ritfus Siwd jycillidus^ of authors.) 



2. M. inferrupfa, Gill. Short - Striped or Yelloav 

 Bass. Silvery, with interrupted black stripes; D. 

 IX — 1, 13; A. Ill, 9. Mississippi Valley, chiefly south- 

 ward. (X. c/iri/sops^ Grd., not of Gill.) 



FAMILY XCIL— CENTRARCHID^. 



{The Sun Fishes.) 



Percoid fishes with a single dorsal fin, either continu- 

 ous or deeply divided, with five to thirteen spines; anal 

 fin large, with three to nine spines; ventrals thoracic, I, 

 5; body oblong, more or less elevated, sometimes much 

 compressed; opercular bones feebly if at all serrated, 

 often with entire edges; scales scarcely ctenoid, some- 

 times cycloid; cleft of mouth more or less oblique; 

 branchiostegals 6; villiform teeth on jaws, vomer and 

 usually on palatines; many species with a small super- 

 numerary bone lying behind the maxillary and parallel 

 with it; others with a more or less prolonged flap extend- 



