What is difference between jelly fish and whale fish?

Jellyfish are gelatinous, free-floating marine animals belonging to the phylum Cnidaria, characterized by their umbrella-shaped bell and tentacles that contain stinging cells. In contrast, "whale fish" usually refers to certain types of fish that are associated with whales, or it may colloquially refer to large fish species. Unlike jellyfish, whale fish possess a backbone, fins, and scales, and are part of the phylum Chordata. Overall, jellyfish are invertebrates, while whale fish are vertebrates, reflecting significant differences in their biological classifications and structures.