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Chondrichthyes

Chondrichthyes. By: Monika Patel. I am the class Chondrichthyes and am made up of cartilaginous fishes (sharks , chimaeras, rays, and skates). My class is among the toughest and most feared under the sea, and has achieved celebrity status through the movie Jaws.  . Fasconius Pelaganax

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Chondrichthyes

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  1. Chondrichthyes By: Monika Patel

  2. I am the class Chondrichthyesand am made up of cartilaginous fishes (sharks, chimaeras, rays, and skates). My class is among the toughest and most feared under the sea, and has achieved celebrity status through the movie Jaws. Fasconius Pelaganax Gigamouth Shark Carcharodon carcharias Great White Shark Dasyatisamericana Stingray Chimaeramonstrosa Ratfish

  3. Where do I live? • Most of my species are strictly marine animals • A few have tolerance for freshwater and venture through rivers to look for food • Rays usually live in shallower waters than sharks

  4. What do I do in my free time? • I enjoy swimming around, and am always on the move (due to my lack of a swim bladder). • I spend a lot of my time snacking and preying on small fish • Occasionally swimming towards the shore to see if there are any tasty surfers whose arm I can bite off

  5. Genealogy • All Chondrichthyes have: • Paired fins • 2 chambered heart • Cartilage instead of bony skeleton • Tough scales covered with dermal teeth • 5-7 pairs of gill slits

  6. My special features  • Rays use spiracles for respiration instead of mouth • I am ectothermic, so I can last for a while without constant feeding. • Internal fertilization • Give birth to live babies, however I am not a very good mother. (no parental care after birth) • Dermal scales may have evolved into rows of teeth in mouth • Lateral line sensors enable me to detect minute disturbances in the water. Ampullae of Lorenzinidetects weak electrical fields .

  7. Are you the one for me?  • Someone who won’t be intimidated by my size, teeth, or long sting • Someone who is not small and juicy, so I’m not tempted to eat them

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