274 VEKTEBRATA : PISCES OR FISHES. 



this order, are those that are familiarly known under the 

 name of Halibuts, Flounders, Soles, Turbots, etc., or Pleu- 

 ronectidse. These fishes have the body flat, being com- 



Ft.;. 338. 



Flounder, I'tattssa vuig<iris, Cuvier. 



pressed vertically, and both eyes on the ,same side of the 

 head, the sides of the mouth unequal, and a dorsal extend- 

 ing the whole length of the back. The side upon which the 

 eyes are placed is always uppermost, and is deeply colored ; 

 while that on which the eyes are wanting is whitish. 

 They have no swimming-bladder, and seldom quit the 

 bottom. The want of symmetry between the two sides 

 of the fishes of this family is seen in no other vertebrates. 

 These strange fishes all belong to the sea, and vary in size 

 from the Flounders, which are from six to twenty inches 

 long or more, to the Halibuts, which, in some cases, attain 

 a length of six or eight feet, and a weight of six hundred 

 pounds. 



SUB-SECTION X. 

 THE ORDER OF PHARYNGOGNATHI, OR GARS, ETC. 



THE well known u Sea-Perch " or Conners, and the 

 Tautogs or Labridse, and the Scomberesocidse or Gars 



