Ray-Finned Fishes

KNOWN SPECIES

34,000

1.44% of our world's living things are ray-finned fish

CHARACTERISTICS

  • animals with a backbone (vertebrates)
  • they possess gills throughout their life and have limbs that are developed in the shape of fins

 

SIZE RANGE

0.30 inch to 15 feet (7.5 millimeters to 4.5 meters)

WHERE THEY LIVE

in fresh water and oceans

Image Credits:

Electric eel, © Brian Gratwicke/CC BY-NC 2.0; French angelfish, G. P. Schmahl, NOAA; honeycomb cowfish, © Kevin Bryant/CC BY-NC-SA 2.0; North Atlantic swordfish, M. Shanley/© AMNH;Pacific seahorse, © Trisha Fawver/CC BY-ND 2.0; pacu, © Ariel Rotondo/CC BY-NC; red lionfish, © Jens Petersen/CC BY 2.5.