WHAT ARE THE SPECIAL FEATURES OF CYCLOSTOMATA
Cyclostomata are jawless fishes which includes lampreys and hagfishes. They lack jaws but bears horny teeth. Their mouth remains open all the time as they lack jaws.
Chondrichthyes are cartilaginous fishes with jaws. Their skeleton is made up of cartilage rather than bone. For example, sharks, rays etc. They lack ribs.
Osteichthyes are bony fishes with jaws. Their skeleton is made up of bone. They are characterised by special pattern of cranial bones. For example, blue runner, lung fish etc.
Chondrichthyes are cartilaginous fishes with jaws. Their skeleton is made up of cartilage rather than bone. For example, sharks, rays etc. They lack ribs.
Osteichthyes are bony fishes with jaws. Their skeleton is made up of bone. They are characterised by special pattern of cranial bones. For example, blue runner, lung fish etc.