Welcome to the to the home page of my nudibranchs and marine flatworms.

Indonesia Nudibranchs & Sea Slugs
Updated 28 September, 2017 - 74 additional species

Irish Nudibranchs
Updated 15 May, 2017 - 5 additional species

Kenya Nudibranchs & Sea Slugs
Updated 1 November, 2015

Maldive Nudibranchs & Sea Slugs
Updated 30 July, 2016 - 16 additional species

Marine Flatworms
Updated 22 December, 2017: PNG - additional species

Papua New Guinea Nudibranchs & Sea Slugs
Updated 22 December, 2017 - 144 additional species

Philippine Nudibranchs & Sea Slugs
Updated 12 June, 2017- 74 additional species

Red Sea Nudibranchs & Sea Slugs
Added 25 September, 2012

Scottish Nudibranchs
Updated 26 August, 2017 - additional images added to 10 species


Our Publications
Link from the above image to see more of our photographic identification guides, available in iBooks and Kindle versions. Species are described and illustrated, many with multiple images.

Where species are identified with the genus followed by a sp. number, as in Flabellina sp. 2, the numbers are from Gosliner, Behrens and Valdes: Nudibranchs and Sea Slugs Identification: Indo-Pacific, 2015.

The site has been updated to reflect the taxonomy of the family Fionidae modified according to:
A Radical Solution: The Phylogeny of the Nudibranch Family Fionidae. Cella K, Carmona L, Ekimova I, Chichvarkhin A, Schepetov D, Gosliner TM (2016).

The site has been updated to reflect the taxonomy of the family Chromodorididae modified according to:
Traditional Taxonomic Groupings Mask Evolutionary History: A Molecular Phylogeny and New Classification of the Chromodorid Nudibranchs. Johnson RF & Gosliner TM (2012).