Description: This nudibranch may grow to a length of 45mm, the ground colour is translucent white. Eight or more yellow tipped oral veil processes are present. There is a yellow tipped process at either side of the gills. The tips of the rhinophores, propodial tentacles, oral lobes and gills are also pigmented with yellow.

Habitat: Common in the circalittoral and on steep rock faces.

Ecology: It appears that P. kernowensis feeds on erect bryozoans such as Crisia and perhaps Bugula species. The spawn is a white coiled ribbon.

Distribution: Common in the correct habitat on northern and western coasts of the Britain and Ireland. Originally described from Cornwall.

Key Identification Features:

• Eight or more processes on the oral veil, two rhinophores without basal processes.
• White with yellow processes and without yellow spots on the body.

Distribution Map from NBN: Polycera kernowensis at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Polycera kernowensis at iNaturalist World Species Observations database.

GBIF data for Polycera kernowensis

WoRMS: Polycera kernowensis at World Register of Marine Species. Accepted name: Polycera kernowensis Korshunova, Driessen, Picton & Martynov, 2021. AphiaID: 1541498.

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