• [Wiki] http://en.wikipedia.org/wiki/Ophryotrocha.
• [EoL] https://eol.org/pages/467939.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [Akes1970] oAkesson, B. (1970). Ophryotrocba labronica as test animal for the study of marine pollution. Helgoländer wiss. Meeresunters, 20:293--303.