Diretmidae

Spinyfins are a family, Diretmidae, of trachichthyform fishes. The family name is derived from the type genus, Diretmus, from Greek, di meaning "two" and eretmos meaning "oar". They are found worldwide in deep waters, as deep as .

species of fish

species of fish

Diretmoides is a genus of spinyfins with one species (pauciradiatus) known from the eastern Atlantic Ocean and the other (veriginae) known from the eastern Indian Ocean.