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Freckelton ML, Luter HM, Andreakis N, Webster NS, Motti CA. (2012). Qualitative variation in colour morphotypes of Ianthella basta (Porifera: Verongida). In: Maldonado M, Turon X, Becerro MA, Uriz MJ (eds) Ancient Animals, New Challenges. Sponge Research Developments. Hydrobiologia 687, pp 191-203.