Polycera marplatensis is a species of sea slug, a nudibranch, a shell-less marine gastropod mollusc in the family Polyceridae.MolluscaBase (2018). Polycera marplatensis Franceschi, 1928. Accessed on 2019-10-11.
Distribution This species was described from Mar del Plata, Buenos Aires, Argentina, . It has been reported from Brazil to Patagonia. Muniain, C. & Ortea, J., 1998. The taxonomic status and redescription of Polycera marplatensis Franceschi, 1928 (Nudibranchia: Polyceratidae) from Argentina. The Veliger, 41(2): 142-147.
Ecology Polycera marplatensis is common in the intertidal zone where it feeds on the Bryozoan Bugula sp..
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