4 CLASSES OF "FISH"

1. BONY FISH - CLASS Osteichthyes


Burmese Loach


Long-eared Sunfish


Ocean Sunfish or Mola


Yellow Bullhead Catsfish


2. CARTILAGINOUS FISH - CLASS Chondrichthyes


Great White Shark


Scalloped Hammerhead Shark


Megamouth Shark (Thanks Arthur!)


Spotted Eagle Ray


Deep Sea Skate


Spotted Ratfish (Chimera)


Longnose Chimera


3. LAMPREY - CLASS Cephalospidomorphi










Lamprey parisitizing a trout




Close up view of sucker mouth






Lamprey life cycle


Lamprey Larvae


This is a bad idea, I think.


4. HAGFISH - CLASS Myxini




Hagfish often tire themselves into a knot
to remove excess slime.






Close up of Hagfish mouth




Hagfish slime





Comparison of Hagfish and Lamprey gill
openings

Check out this HAGFISH VIDEO!!!