A Sturgeon fish is class Actinopterygii or a ray-finned fish. A lobe finned fish is a class Sarcopterygii.
They are a tropical ray-finned fish.
Perch are lobe-finned. The fins on Perch fish are fairly rounded and distinct for this species of fish in the wild.
the fins
They are a tropical ray-finned fish.
The coelocanth is one example of a lobe finned fish. Another example would be the six extant (non extinct) species of lungfish.
lobe-finned fish
lobe-finned fish
It lived in water.
http://en.wikipedia.org/wiki/Actinopterygii They are ray-finned. Search for 'perch' on that page and it says on there =]
The bony fish. They are also known as lobe-finned fishes.
lobe-finned fish
lobe-finned fish