• [Wiki] http://en.wikipedia.org/wiki/Hydrolagus_colliei.
• [fishbase] http://www.fishbase.org/summary/Hydrolagus_colliei.html.
• [EoL] https://eol.org/pages/46561101/articles.
• [KingMcPhi2015] King, J. and McPhie, R. (2015). Preliminary age, growth and maturity estimates of spotted ratfish (Hydrolagus colliei) in British Columbia. Deep-Sea Research II, 115:55--63. doi:10.1016/j.dsr2.2013.11.002.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.