CLASS-BOOK OF ZOOLOGY. 109 



2rf Order. — Cartilaginous Fishes with coyered> 



GILLS. 

 Kg. 26. 



The Common Stubgeok. — (Accipenser Sturio.y 



3d Order. — Apodal Fishes. 



Fig. 27. 



The Sword-fish. — (Xyphias Gladius.) 



4tk Order. — Jugular Fishes. 



Fig. 28. 



The Cosmo* Weaveb.— {Trachinu* Draw) 

 10 



