Osteichthyes. The Bony Fish. Class Osteichthyes. Characterized by having: Bone in their skeleton An operculum covering the gill openings A swimbladder or lungs True scales Paired fins Homocercal tail (Exception lungfish – diphycercal) Mouth terminal Two chambered heart
The Bony Fish
Characterized by having:
The bony fishes are the most diverse class of fish. ~24,000 species
Osteichthyes are divided into two subclasses
*Most modern fish are members of the ray-finned, Teleost subdivision.