<P> Ichthyology (from Greek: ἰχθύς, ikhthus, "fish"; and λόγος, logos, "study"), also known as fish science, is the branch of zoology devoted to the study of fish . This includes bony fish (Osteichthyes), cartilaginous fish (Chondrichthyes), and jawless fish (Agnatha). While a large number of species have been discovered, approximately 250 new species are officially described by science each year . According to FishBase, 33,400 species of fish had been described by October 2016 . </P> <P> The study of fish dates from the Upper Paleolithic Revolution (with the advent of "high culture"). The science of ichthyology was developed in several interconnecting epochs, each with various significant advancements . </P>

The branch of zoology that deals with the study of fishes