Page 181 - Ultimate Visual Dictionary (DK)
P. 181

SHARKS AND JAWLESS FISH
        EXAMPLES OF CARTILAGINOUS FISH









                                                                     TIGER SHARK
        BASKING SHARK                                                (Galeocerdo cuvier)
        (Cetorhinus maximus)



                                        SCALLOPED
         THORNBACK RAY                  HAMMERHEAD SHARK
         (Raja clavata)                 (Sphyrna lewini)


                                                                                      Anterior dorsal fin


                                                                                           Posterior dorsal fin






                                                     Pelvic fin





                                                         Right lobe          Epibranchial
                         Wolffian duct  Dorsal aorta     of  liver           artery
                         Oviduct        Kidney    Ovary          Spinal cord   Lateral dorsal
                                                                               aorta
                                                              Esophagus
            Rectal gland
                                                                                  Brain  Orbital
                                                                                         artery





                                                                                          Mouth
                                          Spiral                                    Pharynx
                            Cloaca         valve                  Heart
                                                                                Gill slit
                                Rectum     Intestine         Pyloric region
                                                             of  stomach   Ventral aorta
                                                Pancreas
                                                             Cardiac region
                                                            of  stomach

                                            INTERNAL ANATOMY
                                            OF A FEMALE DOGFISH
                                                                                              Caudal fin


                                                                                                        179
   176   177   178   179   180   181   182   183   184   185   186