Encystment Discovered in a Marine Copepod

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Science  17 Apr 1981:
Vol. 212, Issue 4492, pp. 342-344
DOI: 10.1126/science.212.4492.342


It has been believed that marine crustacea do not encyst as adults. The benthic copepod Heteropsyllus nunni has been found to encyst in intertidal sands in the summer; free-living forms are abundant in the winter. A unique platelike structure on the cephalothorax is thought to be the site of cyst formation.