1. Phylum: Chordata “possessing a notocord”

2. CLASS AGNATHA General Characteristics Most primitive Body elongated and cylindrical (eel-like ) Lack paired fins & scales of most fishes Cartilage skeleton Mucous covered body

3. Lack jaws – Feed by suction with aid of round, muscular mouth, rows of teeth, and rasping tongue

4. TYPES Hagfish (slime eels) (64 sp.) Scavengers – bore into prey & eat from inside out; Can go months without food Cold marine water; live in tunnels in muddy bottoms Almost blind; can be up to 2.5 ft ; tentacles around mouth Depths 25 – 1000 m

5. Hagfish Defenses Create huge amounts of slimy mucus

6. Can tie into knots

7. Hagfish Uses Food in Korea, Japan

8. Skin makes leather (often called eel)

9. Slime is sugar & protein =

10. Lamprey (40 sp) Parasitic – attach to fish & suck blood or eat bottom invertebrates Marine & freshwater; all breed in freshwater Temperate regions

11. Lamprey Uses Food – Southwestern Europe $25 pound

12. Lamprey as Invasive N.A. Great Lakes Prey on trout