BIOTIC References
1848Nichols, D., 1991. Seasonal reproductive periodicity in the European comatulid crinoid Antedon bifida (Pennant). In Biology of Echinodermata. Proceedings of the Seventh International Echinoderm Conference, Atami, 9-14 September 1990 (ed. T. Yanagisawa, I. Yasumasu, C. Oguro, N. Suzuki & T. Motokawa), pp. 241-248.
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