www.nmbaqcs.org

Anchor text: Wells, Emma (2010), ''A Field Guide to the British Seaweeds'', National Marine Biological Analytical Quality Control Scheme (p 24)

Wikipedia: Bangiales

Anchor text: Wells, Emma (2010), ''A Field Guide to the British Seaweeds'', National Marine Biological Analytical Quality Control Scheme (p 24)

Wikipedia: Porphyra umbilicalis

Anchor text: Barnich, R Scale worms in British and Irish waters

Wikipedia: List of Annelida of Ireland

Anchor text: Ring Test Bulletin 45 Year 20 (2013/2014)

Wikipedia: Pseudocuma simile