Osteichthyes

Three Characteristics:

1. With a swim bladder providing buoyancy
2. Notochord that evolved into a vertebrate composed of bone
3. One pair of gill slits protected by operculum

 

Flagtail surgeonfish

• Paracanthurus heptatus

 

American shad

• Alosa sapidissima 

Credit Given to:

http://animaldiversity.ummz.umich.edu/accounts/Alosa_sapidissima/pictures/collections/contributors/Grzimek_fish/Clupeiformes/Alosa_sapidissima/

http://blue.utb.edu/rlnash/Spring2004/Notes/1307%20notes/Notes%20Fish.htm