• [Wiki] http://en.wikipedia.org/wiki/wiki/Opsanus_beta.
• [fishbase] http://www.fishbase.org/summary/Opsanus-beta.html.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [MalcBari2009] Malca, E., Barimo, J. F., Serafy, J. E., and Walsh, P. J. (2009). Age and growth of the gulf toadfish Opsanus beta based on otolith increment analysis. Journal of Fish Biology, 75:1750--1761. doi:10.1111/j.1095-8649.2009.02426.x.