ILLUSTRATIONS 



i. Topography of a Fish ... . . 



2. Topography of a Cetacean ..... 



3. Flipper of a Sperm Whale ..... 



4. Skull of a Whalebone Whale (Californian Grey Whale). 



5. Skull of a Toothed Whale (False Killer Whale) . 



6. Respiratory Organs in a Shark and a Bony Fish . 



7. Six-gilled Shark or Griset (Hexanchus griseus) 



8. Seven-gilled Shark or Perlon {Heptranchias perlo) 



9. Sand Shark or Slender-toothed Shark (Odontaspis taunts) 



10. Elfin or Goblin Shark (Scapanorhynchus owstoni) 



1 1 . Common Porbeagle (Lamna cornubica) 



12. Mediterranean Mackerel Shark {Lamna oxyrhynchus) . 



13. Great White Shark or Man-eater (Carcharodnn rondeleti) 



14. Basking Shark (Cetorhinus maximus) .... 



15. Thresher or Fox Shark (A lopi as vulpes) 



16. Common Nurse Shark or Gata (Ginglymostoma cirratxim) 



17. Wobbegong or Carpet Shark (Orectolobus barbatus) 



18. Zebra Shark {Stegostoma tigrinum) .... 



19. Great Blue Shark (Carcharinus glaucus) 



20. Tiger Shark (Galeocerdo arcticus) .... 

 ji. Hammer-head Shark (Sphyrna zygcena) 



22. Greenland or Sleeper Shark (Somniosus microcephalus) . 



23. Bramble or Spinous Shark {Echinorhinus spirwsns) 



24. Monk-fish or Angel-fish (Squalina squatina) . 



25. Ulavi or Plough-headed Ray {Rhynchobatis djiddensis) . 



26. Common Saw-fish (Pristis pectinatus) 



27. Mediterranean Torpedo (Torpedo marmoratus) 



28. Common Skate (Raja batis) 

 29a. Stingaree or Clam-cracker (Trygon centrums) 

 296. Common Eagle Ray (Myliobatis aquila) 



30. Cow-nose Ray (Rhinoptera quadriloba) 



31. Manta or Greater Devil-fish (Manta birostris) 



32. Mobular (Mobula mobular) 



33. Common Sturgeon (Acipenser sturio) 



34. Tarpon (Megalops atlanticus) 



35. Common Conger (Conger conger) 



36. Common Gar-fish (Belone belone) 



