Facciolella gilbertii
 Facciolella gilbertii known commonly as the Dogface witch-eel is an eel in the family Nettastomatidae (duckbill/witch eels). It was described by Samuel Garman in 1899. It is a marine deep water-dwelling eel which is known from the eastern central Pacific Ocean including California USA and Panama. It is known to dwell at a depth of 935 metres. It is often caught in bottom trawls. Females are oviparous and the larvae are planktonic.