Dalatiidae

The Dalatiidae are a family of sharks in the order Squaliformes, commonly known as kitefin sharks (which also refers specifically to the species Dalatias licha). Members of this family are small, under long, and are found worldwide. They have cigar-shaped bodies with narrow heads and rounded snouts. Several species have specialized bioluminescent organs. Though seven species are in this family, five of them are monotypic.