APPENDIX. 129 



ARRANGEMENT 



(ACCORDING TO THE METHOD OF CUVIER) 



OF THE 



AMERICAxN SPECIES OF FISHES 



ALLUDED TO IN THE PRECEDING PAGES. 

 BY JAMES E. DE KAY. 



AUTHOR OF THE SEW YORK FALNA. 



{Kindly furnished for this Edition of fValton's Angler.) 



SUB CLASS I. 

 BONY FISHES. 



Skeleton bony, the osseous matter being deposited in fibres. Gill- 

 membrane with rajs. Maxillaries and intermaxillaries, one or both 

 present. 



SECTION I. 



8PINE P. AYED. 



First rays of (he dorsal Jin or the whole of it spinous ; first rays of the 

 anal and ventral fins spinous. 



Fa.mily Percid^. — Scales hard and rough. Opercle and pre-oper- 

 cle, one or both serrated or spinous : jaws, vomer, and palatines armed 

 with teeth. 



Genus Perca. — Two dorsal fins. Tongue smooth ; suborbital faintly 

 serrated : opercle ending in a flat spine. 



Ohs. — This genus includes, according to some writers in the United 

 States, but one species,— the P. flaiescens, or common yellow perch. 

 Cuvier has, however, described four others from various parts of the 

 United States, which I believe to be quite distinct, although it must be 

 acknowledged that thoy are closely allied to each other. The yellow 

 perch is very widely distributed throughout the country. 



PART it. 6* 



