^Jørgen G. Nielsen; Daniel M. Cohen; Douglas F. Markle & C. Richard Robins (1999). OPHIDIIFORM FISHES OF THE WORLD (Order Ophidiiformes) An annotated and illustrated catalogue of pearlfishes, cusk-eels, brotulas and other ophidiiform fishes known to date. FAO Species Catalogues. Vol. 17. Rome: Food and Agriculture Organization of the United Nations. p. 97. ISBN92-5-104375-2.