<Tr> <Td_colspan="2"> <Ul> <Li> Cheilopogon </Li> <Li> Cypselurus </Li> <Li> Exocoetus </Li> <Li> Fodiator </Li> <Li> Hirundichthys </Li> <Li> Parexocoetus </Li> <Li> Prognichthys </Li> </Ul> </Td> </Tr> <Ul> <Li> Cheilopogon </Li> <Li> Cypselurus </Li> <Li> Exocoetus </Li> <Li> Fodiator </Li> <Li> Hirundichthys </Li> <Li> Parexocoetus </Li> <Li> Prognichthys </Li> </Ul> <P> The Exocoetidae is a family of marine fish in the order Beloniformes class Actinopterygii . Fish of this family are known as flying fish . About 64 species are grouped in seven to nine genera . Flying fish can make powerful, self - propelled leaps out of water into air, where their long, wing - like fins enable gliding flight for considerable distances above the water's surface . This uncommon ability is a natural defence mechanism to evade predators . </P> <P> The oldest known fossil of a flying or gliding fish, Potanichthys xingyiensis, dates back to the Middle Triassic, 235--242 million years ago . However, this fossil is not related to modern flying fish, which evolved independently about 66 million years ago . </P>

What is the name of the flying fish