Class Osteichthyes
 Osteichthyes - Coelacanth http://animals.nationalgeographic.com/animals/fish/coelacanth.html | Animals in the Class Osteichthyes acquire bony skeletons and scales. Their gills are covered by bony operculum as well. These organisms also have jaws and paired appendages. Most organisms in this class have swim bladders. A lung-like, gas-filled organ helps regulate their buoyancy. |
