2 literature references:

Author: FAO-FIES
Year: 2010
Title: Aquatic Sciences and Fisheries Information System (ASFIS) species list.
Source: Retrieved from http://www.fao.org/fishery/collection/asfis/en, March 2010.
Author: Markle, D.F. and J.-C. Quéro
Year: 1984
Title: Alepocephalidae (including Bathylaconidae, Bathyprionidae).
Source: p. 228-253. In P.J.P. Whitehead, M.-L. Bauchot, J.-C. Hureau, J. Nielsen and E. Tortonese (eds.) Fishes of the North-eastern Atlantic and the Mediterranean. UNESCO, Paris. Vol. 1.