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Vertebrates Phylum Chordata   Fish (3 classes)   Ichthyology - study of fish   PowerPoint Presentation
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Vertebrates Phylum Chordata   Fish (3 classes)   Ichthyology - study of fish  

Vertebrates Phylum Chordata   Fish (3 classes)   Ichthyology - study of fish  

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Vertebrates Phylum Chordata   Fish (3 classes)   Ichthyology - study of fish  

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  1. VertebratesPhylum Chordata  Fish (3 classes)  Ichthyology- study of fish  

  2. Class Agnatha • - jawless fish • hagfish and lampreys • - they suck blood or bore into their bodies and eat them from the inside out.  

  3. Hagfish

  4. Hagfish

  5. Hagfish slime

  6. Lampreys

  7. lamprey

  8. Lamprey Mouth

  9. Lamprey Damage

  10. 2.Class Chondrichthyes • - cartilaginous fish   • - sharks, rays and skates   • - skeleton made of cartilage   • - rough sand papery skin  

  11. Chondrichthyes

  12. Cartilaginous skeleton

  13. Denticles

  14. Shark Skin

  15. Shark Skin

  16. SHARKS   • 250 species   • - found throughout oceans at all depths, but mostly in tropical coastal waters;a few found in freshwater (bullshark)   • - all sizes from 10 in.(spiny pygmy shark) to 60 ft.(whale shark)   • - most carnivorous predators, some peaceful plankton feeders.  

  17. Sharks

  18. Bull Shark

  19. Spiny Pygmy Shark

  20. Whale Shark

  21. Sand Tiger Shark

  22. Tiger Shark

  23. Leopard Shark

  24. Nurse Shark

  25. Basking Shark

  26. Saw Shark

  27. Stingrays and Skates   • have flat bodies and mostly live on the bottom   • - gill slits are on the underside   • - pectoral fins are flat and expanded,look like wings   • - eyes on top of the head   • - stingrays have a whip like tail with a stinging spine   • - skates do not have a whip like tail with spines  

  28. Sting Rays

  29. Sting Rays

  30. Stingray

  31. MantaRay

  32. Stingray Stinger