Nettastomatidae
Nettastomatidae, the duckbill eels or witch eels are a family of eels. The name is from Greek "netta" meaning "duck" and "stoma" meaning "mouth". Duckbill eels are found along the continental slopes of tropical and temperate oceans worldwide. They are bottom-dwelling fish, feeding on invertebrates and smaller fish. They are slender eels, up to in length, with narrow heads and large, toothy, mouths. Most species lack pectoral fins. Species. About 40 species are placed in seven genera: