The anchovies and herrings group is a large group of mainly marine fish. There are about 397 species in 6 families. These are small to large sized fish that often travel in large schools. Many species are very important to humans as a source of food, some species form the basis for large, commercial fishing industries.
Tanya Dewey (author), Animal Diversity Web.
having body symmetry such that the animal can be divided in one plane into two mirror-image halves. Animals with bilateral symmetry have dorsal and ventral sides, as well as anterior and posterior ends. Synapomorphy of the Bilateria.
uses smells or other chemicals to communicate
having the capacity to move from one place to another.
specialized for swimming
uses touch to communicate