↑International Union for Conservation of Nature and Natural Resources (IUCN) (1994) 1994 IUCN red list of threatened animals., International Union for Conservation of Nature and Natural Resources, Gland, Switzerland and Cambridge, U.K.
↑ 3.03.1Bisby F.A., Roskov Y.R., Orrell T.M., Nicolson D., Paglinawan L.E., Bailly N., Kirk P.M., Bourgoin T., Baillargeon G., Ouvrard D. (ed.) (2011). "Species 2000 & ITIS Catalogue of Life: 2011 Annual Checklist". Species 2000: Reading, UK. Ginkuhà 24 Septyembre 2012.CS1 maint: multiple names: authors list (link) CS1 maint: extra text: authors list (link)
↑FishBase. Froese R. & Pauly D. (eds), 14 Hunyo 2011