JAWLESS FISH=> <ul><li>Subphylum: Vertebrata, Class: Agnatha </li></ul><ul><li>lampreys and hagfishes </li></ul><ul><li>sc...
JAWLESS FISH=> <ul><li>LAMPREYS are usually parasites with a larval stage which filter-feeds </li></ul><ul><li>HAGFISHES h...
buccal funnel or “mouth”
lampreys on lake trout
sea lamprey
atlantic hagfish
 
CARTILAGINOUS FISH=> <ul><li>Subphylum: Vertebrata, Class: Chondrichthyes </li></ul><ul><li>sharks, rays and skates </li><...
 
heterocercal  tail homocercal  tail TAILS:
 
CARTILAGINOUS FISH=> <ul><li>have large, oily liver for buoyancy (to 20% wt.) </li></ul><ul><ul><li>still heavier than wat...
CARTILAGINOUS FISH=> <ul><li>tough skin, placoid scales </li></ul><ul><li>ventral mouth w/ 6 to 20 rows of sharp teeth </l...
shark jawbone
 
 
CARTILAGINOUS FISH=> <ul><li>5-7 pairs of gills </li></ul><ul><li>(many must swim constantly) </li></ul>
Silky Shark
CARTILAGINOUS FISH=> <ul><li>complex digestive system with “ spiral valve  intestine” </li></ul>
CARTILAGINOUS FISH=> <ul><li>have a “lateral line” system </li></ul><ul><li>fertilization is internal and are usually born...
Ampullae  of Lorenzini
“ Techno Shark”
Gray Reef Shark
Blacktip Reef Shark
Great White Shark
Hammerhead Shark
Silky Shark
Whitetip Reef  Sharks need love too...
Whale Shark
Whale Shark
Whale Shark
Southern Stingray
Dasyatis americana
Southern Stingray
Manta Ray
Manta Ray
 
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J A W L E S S & C A R T I L A G I N O U S F I S H E S

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J A W L E S S & C A R T I L A G I N O U S F I S H E S

  1. 2. JAWLESS FISH=> <ul><li>Subphylum: Vertebrata, Class: Agnatha </li></ul><ul><li>lampreys and hagfishes </li></ul><ul><li>scaleless, cylindrical body </li></ul><ul><li>no vertebral column </li></ul><ul><li>(a notochord) </li></ul><ul><li>poor swimmers </li></ul>
  2. 3. JAWLESS FISH=> <ul><li>LAMPREYS are usually parasites with a larval stage which filter-feeds </li></ul><ul><li>HAGFISHES have no larval stage and live at the bottom of cold seas acting as scavengers. </li></ul>
  3. 4. buccal funnel or “mouth”
  4. 5. lampreys on lake trout
  5. 6. sea lamprey
  6. 7. atlantic hagfish
  7. 9. CARTILAGINOUS FISH=> <ul><li>Subphylum: Vertebrata, Class: Chondrichthyes </li></ul><ul><li>sharks, rays and skates </li></ul><ul><li>skeleton of cartilage </li></ul><ul><li>hinged jaws, paired fins </li></ul><ul><li>ventral mouth </li></ul>
  8. 11. heterocercal tail homocercal tail TAILS:
  9. 13. CARTILAGINOUS FISH=> <ul><li>have large, oily liver for buoyancy (to 20% wt.) </li></ul><ul><ul><li>still heavier than water </li></ul></ul>
  10. 14. CARTILAGINOUS FISH=> <ul><li>tough skin, placoid scales </li></ul><ul><li>ventral mouth w/ 6 to 20 rows of sharp teeth </li></ul>
  11. 15. shark jawbone
  12. 18. CARTILAGINOUS FISH=> <ul><li>5-7 pairs of gills </li></ul><ul><li>(many must swim constantly) </li></ul>
  13. 19. Silky Shark
  14. 20. CARTILAGINOUS FISH=> <ul><li>complex digestive system with “ spiral valve intestine” </li></ul>
  15. 21. CARTILAGINOUS FISH=> <ul><li>have a “lateral line” system </li></ul><ul><li>fertilization is internal and are usually born live </li></ul>
  16. 22. Ampullae of Lorenzini
  17. 23. “ Techno Shark”
  18. 24. Gray Reef Shark
  19. 25. Blacktip Reef Shark
  20. 26. Great White Shark
  21. 27. Hammerhead Shark
  22. 28. Silky Shark
  23. 29. Whitetip Reef Sharks need love too...
  24. 30. Whale Shark
  25. 31. Whale Shark
  26. 32. Whale Shark
  27. 33. Southern Stingray
  28. 34. Dasyatis americana
  29. 35. Southern Stingray
  30. 36. Manta Ray
  31. 37. Manta Ray

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