By: Tricia Redburn

External Anatomy  Lateral Line  Anterior Dorsal Fin  Posterior Dorsal Fin  Caudal fin  Rostrum  Eyes  Spiracle  Gill Slits  Pectoral Fins  Pelvic Fins  Mouth  Nostrils  Ampullae of Lorenzini  Cloacal opening  Myomers

Body Cavities  pericardial  Pleuroperitoneal  Thoracic  Pericardial  Pleural  abdominal

Internal Anatomy  Liver  Duodenum  Ilium  Rectum  Rectal gland  Spleen  Pyloric stomach  Cardiac stomach  Esophagus  Bile Duct 

DogFish Classification  Kingdom- Animalia Phylum- Chordata SubPhylum- Vertebrata Class- Chondrichthyes Subclass- Plagiostomi Superorder- Selachimorpha Subclass- Elasmobranchii  Sharks are divided into 8 orders- Squaliforms- (short snout, mouth underneath, no anal fin) - dogfish and cookiecutter sharks 

I got my information from these sites:  subjects/sharks/classification/ subjects/sharks/classification/  oldvertebrate/lab3_frameset.htm oldvertebrate/lab3_frameset.htm  gy/ppepe/BIO145/lab04_1.html gy/ppepe/BIO145/lab04_1.html