XIII 



PHYLUM CHORDATA 

 Sub-order b. Anacanfhini. 



221 



Teleostei in which the air-bladder, when present, has, except in 

 one species, no pneumatic duct. The rays of the unpaired and of 



FIG. 877. Gadus morrhua (Cod), an. anus ;c.f. caudal fin ; d.f. 13, dorsal fins ; mx. maxilla ; 

 pet. f. pectoral fin ; pmx. premaxilla ; pv. f. pelvic fin ; v.f. 1 and 2, ventral fins. (After 

 Cuvier.) 



the pelvic fins are all jointed, and the pelvic fins are either thoracic 

 or jugular. Including the Cod (Fig. 877), Haddock, Whiting, 

 Hake, Ling, and the Pleuronectida3 or Flat-fishes (Fig. 882), such 

 as the Sole, Flounder, Turbot, &c. 



Sub-order c. Acanthoptcri. 



Teleostei in which the air-bladder, when present, has usually no 

 meumatic duct. More or fewer of the rays of the dorsal, ventral, 



FIG. 878. Sebastes percoides. l>r. m. branchiostegal membrane ; d.f. spiny portion of dorsal 

 fin ; i/. ;'.' soft portion ; mx. maxilla; op. opercular ; /</./'. pectoral fin ; p.mx. premaxilla; 

 /*/. f>/>. i)reopercular ; pv. f. pelvic fin ; v.f. spiny portion of ventral fin; v. /'soft portion. 

 (After Richardson.) 



