Mystriophis crosnieri, known commonly as the Spoon-nose eel in the United Kingdom, is an eel in the family Ophichthidae (worm/snake eels). It was described by Jacques Blache in 1971. It is a marine, tropical eel which is known from the eastern Atlantic Ocean, including Senegal, Angola, and the western Mediterranean. It dwells at a depth range of 75 to 300 metres (246 to 984 ft), and forms burrows in sand and mud sediments on the continental shelf. Males can reach a maximum total length of 96.5 centimetres (38.0 in). The diet of M. crosnieri consists of benthic crustaceans.