Class Chondrichthyes, Elasmobranchii and Holocephali

    Class Chondrichthyes, Elasmobranchii and Holocephali
    In members of subclass Holocephali, teethes are modified into:
    Author: rikazzz Comment
    Class Chondrichthyes, Elasmobranchii and Holocephali
    Pharyngeal slits in member of subclass Holocephali is covered with:
    Author: rikazzz Comment
    Class Chondrichthyes, Elasmobranchii and Holocephali
    Sharks have a cartilaginous structure and it may become
    Author: rikazzz Comment
    Class Chondrichthyes, Elasmobranchii and Holocephali
    Sharks, ratfishes, and rays are included in class
    Author: rikazzz Comment