Question

What is the taxonomy of fish?

Answer 1

Taxonomy of Fishes:

1. Fish have existed on this planet for a very long time—450 million years, to be exact.
2. These gill-bearing animals require an aquatic habitat in order to thrive and procreate.
3. The majority of these species are craniates, which lack digitized limbs.
4. Fish typically belong to the sister group of tunicates, which together make up the olfactores.
5. There are currently more than 31,000 distinct species of fish living in the world.
6. Fish have undergone modifications as a result of numerous environmental factors, which has added some interest to the process of fish evolution.
7. Other characteristics include the morphology of the bottom, its depths, its current, and the water's temperature and salinity. Many of the various fish species have adapted to their surroundings.
8. Fish are chordates and kept in the subphylum Vertebrata.

• Kingdom – Animalia
• Phylum – Chordata
• Subphylum – Vertebrata
• Division – Gnathostomata (vertebrates with jaw)
• Super Class – Pisces (bear fins)
• Class – 1. Chondrichthyes (cartilaginous fish), e.g. Scoliodon, Torpedo, Trygon.
• 2. Osteichthyes (bony fish), e.g. Exocoetus, Hippocampus, Labeo.
• Jawless fish belong to class Cyclostomata of the division Agnatha. E.g. Petromyzon, Myxine.