Ichthyology

Ichthyology is the branch of zoology devoted to the study of fish. This includes the bony fish (Osteichthyes), the cartilaginous fish (Chondrichthyes) such as sharks and rays, and the jawless fish (Agnatha). Since there are as many species of fish as all other vertebrates put together, and they have been evolving for a very long time, there is a bewildering variety; while most species have probably been found and described, there is much that is still not known about biology and behavior.

External link

• Brian Coad's Dictionary of Ichthyology