Ichthyology – “fish study”

• Kingdom: Animalia• Phylum: Chordata– Subphylum: Vertebrata

• Class: Osteichthyes “bony fish”

Traits of Bony Fish• Bony skeleton

Traits of Bony Fish• Bony skeleton• Scales

Traits of Bony Fish• Bony skeleton• Scales• Gills (with operculum)

Traits of Bony Fish• Bony skeleton• Scales• Gills (with operculum)(counter current gas exchange)

Traits of Bony Fish• Bony skeleton• Scales• Gills (with operculum)• Fins (mostly ray finned)

Traits of Bony Fish• Bony skeleton• Scales• Gills (with operculum)• Fins (mostly ray finned)• 2 chambered heart

Traits of Bony Fish• Bony skeleton• Scales• Gills (with operculum)• Fins (mostly ray finned)• 2 chambered heart• Ectothermic (cold blooded)

Traits of Bony Fish• Bony skeleton• Scales• Gills (with operculum)• Fins (mostly ray finned)• 2 chambered heart• Ectothermic (cold blooded)• Lateral line

Traits of Bony Fish• Bony skeleton• Scales• Gills (with operculum)• Fins (mostly ray finned)• 2 chambered heart• Ectothermic (cold blooded)• Lateral line• Swim bladder