Description: This nudibranch may grow to a length of 12mm, the ground colour is translucent white. Four to six yellow tipped oral veil processes are present.

Habitat: P. capitata feeds on Membranipora membranacea and Electra pilosa on kelp fronds and red seaweeds in the infralittoral zone. The spawn is a white curved ribbon in a crescent moon shape.

Distribution: A common species in the infralittoral on exposed western and southern coasts of the British Isles, north to Norway.

Key Identification Features:

• Four to six processes on the oral veil, two rhinophores without basal processes.
• Variable in colour but one form has fine black speckles on the body.

iNaturalist: Polycera capitata at iNaturalist World Species Observations database.

GBIF data for Polycera norvegica

WoRMS: Polycera capitata at World Register of Marine Species. Accepted name: Polycera norvegica Sørensen, Rauch, Pola & Malaquias, 2020. AphiaID: 1451585.

Classification: Biota; Animalia; Mollusca; Gastropoda; Heterobranchia; Euthyneura; Ringipleura; Nudipleura; Nudibranchia; Doridina; Doridoidei; Polyceroidea; Polyceridae; Polycerinae; Polycera