What's the difference between fishlike and ichthyosaur?

Fishlike

Definition:

• (a.) Like fish; suggestive of fish; having some of the qualities of fish.

Example Sentences:

• (1) These findings, together with her morning mucus sample having a strong fishlike odor, prompted us to suspect a metabolic problem.

Ichthyosaur

Definition:

• (n.) One of the Ichthyosaura.

Example Sentences: