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: Genus Facciolella Genus Hoplunnis Genus "Leptocephalus" Genus Nettastoma Genus Nettenchelys Genus Saurenchelys Genus Venefica References Fish of the Atlantic Ocean Fish of the Pacific Ocean Fish of the Indian Ocean Ray-finned fish families