Spiny-finned fish and Teleost fish

Spiny-finned fish noun - A teleost fish with fins that are supported by sharp inflexible rays.

Teleost fish and spiny-finned fish are semantically related. In some cases you can use "Teleost fish" instead a noun phrase "Spiny-finned fish".

Teleost fish noun - A bony fish of the subclass Teleostei.

Spiny-finned fish and teleost fish are semantically related. Sometimes you can replace phrase "Spiny-finned fish" with "Teleost fish", this phrases are similar.