English Polycera tricolor Cited by user Cwmhiraeth on 28 Apr 2019 Polycera tricolor is a species of sea slug, a nudibranch, a shell-less marine gastropod mollusc in the family Polyceridae.
English Nudibranch Cited by user Citation bot on 05 Feb 2019 Nudibranchs are a group of soft-bodied, marine gastropod molluscs which shed their shells after their larval stage.