What is the scientific classification for a fish?

Answer 1

I think, starting with the kingdom and working through, it would be 'Animalia' (animals), then 'Chordata' (animals with backbones), then 'vertebrata' and finally 'fish'.

So... well, I think fish are, fish. They're aquatic vertebrates.

Answer 2

Kingdom: Animalia (Animals)

Phylum: Chordata (notochord)

Subphylum: Vertebrata (animals with back bones)

Then, there are three major classes.

• Agnatha (jawless fish such as the hagfish and lampreys)
• Chrondrichthyes (fish whose skeleton is made of cartilage such as sharks, rays and skates)
• Osteichthyes (bony fish; skeleton is composed mostly of bone such as bass, perch, catfish, and flounder)

The majority of fish belong to the osteichtyes. The study of fish is called ichtyology.