Palio zosterae is a species of sea slug, a nudibranch, a shell-less marine gastropod mollusc in the family Polyceridae.Bouchet, P. (2015). Palio zosterae (O'Donoghue, 1924). In: MolluscaBase (2015). Accessed through: World Register of Marine Species on 2015-12-13
Distribution This species was described from Vancouver Island, British Columbia, Canada. It is found from Vancouver Island to Bodega Bay, California.Behrens, D. W. (1991) Pacific coast nudibranchs: a guide to the opisthobranchs, Alaska to Baja California, 1- 107. Second Edition. Sea Challengers: Monterey, California.
Ecology Palio zosterae feeds on the bryozoans Bowerbankia gracilis and Membranipora membranacea.Rudman, W.B., 2003 (July 13) Palio zosterae (O'Donoghue, 1924). [In] Sea Slug Forum. Australian Museum, Sydney.
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