APHOTOMARINE

An educational resource dedicated mainly to the photography
and diversity of marine life that can be found in coastal waters
and intertidal areas of Great Britain and Ireland by David Fenwick.

A-P-H-O-T-O Wildlife Stock Image Library
Polycera capitata (Alder & Hancock, 1854) - A polycerid nudibranch (Sea slugs)
PLEASE NOTE
Polycera capitata (Alder & Hancock, 1854) syn. Polycera norvegica Sørensen, Rauch, Pola & Malaquias, 2020.
Ref: Korshunova, T. A.; Driessen, F. M. F.; Picton, B. E.; Martynov, A. V. (2021). The multilevel organismal diversity approach deciphers difficult to distinguish nudibranch species complex. Scientific Reports.

Polycerid nudibranch
Polycera capitata
- dorsal view 1

Polycerid nudibranch
Polycera capitata
- dorsal view 2

Polycerid nudibranch
Polycera capitata
- dorsal view 3

Polycerid nudibranch
Polycera capitata
- habitat / location 1

The specimen above was found in a sample containing algae collected from a deep pool on the lowershore at Skilly, Newlyn, Cornwall, 26.04.21.

Polycerid nudibranch
Polycera capitata
- lateral view 1

The specimen above was found in a small scrape sample of Coral Weed, Corallina officinalis taken from the extreme lowershore at Chimney Rocks, Penzance, Cornwall, 03.06.15.

Polycerid nudibranch
Polycera capitata
- from St. Ives 1

Polycerid nudibranch
Polycera capitata
- from St. Ives 2

The specimen above was found on red algae on the extreme lowershore on the spit in front of Smeaton's Pier, St. Ives, Cornwall, 18.02.15.

Polycerid nudibranch
Polycera capitata
- from Mousehole 1

Polycerid nudibranch
Polycera capitata
- from Mousehole 2

Polycerid nudibranch
Polycera capitata
- from Mousehole 3

The specimen above was found on algae in a pool on the lowershore at Tavis Vor, Mousehole, Cornwall, 08.05.12.

The specimens here were identified using the criterior laid down by the following papers -

Sørensen CG, Rauch C, Pola
M, Malaquias MAE (2020). Integrative taxonomy reveals a cryptic species of the nudibranch genus Polycera (Polyceridae) in European waters. Journal of the Marine Biological Association of the United Kingdom 1–20. https://doi.org/10.1017/
S0025315420000612

Korshunova, T. A.; Driessen, F. M. F.; Picton, B. E.; Martynov, A. V. (2021). The multilevel organismal diversity approach deciphers difficult to distinguish nudibranch species complex. Scientific Reports.

Please note the specimens found and photographed were also juvenile, but despite this they perfectly display the characterists needed to identify them as P. norvegica.

APHOTOMARINE supports open source data recording and sharing for the benefit of wildlife, recorders, research, science and education. The project recommends the following websites and works with the following bodies and organisations.

Conchological Society of Great Britain and Ireland

The Conchological Society of Great Britain and Ireland
Helping to understand, identify, record, and conserve molluscs.

Marine Biological Association MBA

The Marine Biological Association or MBA, based in Plymouth, is one of the world’s longest-running societies dedicated to promoting research into our oceans and the life they support. Since 1884 the MBA has been providing a unified, clear, independent voice on behalf of the marine biological community.It has a growing membership in over 40 countries.

NBN National Biodiversity Network

The National Biodiversity Network or NBN is a charity that supports open source data sharing and recording supporting conservation, science and education. "Why do recorders need open source?". Simply because it supports the core values of wildlife recording and the free use of records and data over a very wide network that includes partners like the Natural History Museum.

The taxonomy used here is based on that of the following database, which is also used by the MBA, NHM and the NBN.

World Register of Marine Species or WoRMS

The World Register of Marine Species or WoRMS.

Polycera capitata syn Polycera norvegica sea slug nudibranch images
The main objective of this website is in furthering environmental awareness and education through the medium of photography. To increase awareness and access to the wildlife of the region and help
people find and identify it. Sometimes the difference between species is obvious but many species can only be determined by observing microscopic characteristics that are specific to any one species.