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 30 September, 2017: Indonesia - additional species

Papua New Guinea Nudibranchs & Sea Slugs
Updated 15 May, 2017 - 112 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

Identification Guides
Link to links for all our photographic identification Guides available as iBooks and Kindle versions .


Our new publication: MALDIVES Nudibranchs
published 3 October, 2017
MALDIVES NudibranchsMaldives nudibranchs
A photographic identification guide to the nudibranchs and other sea slugs of the Maldives. 100 species are described and illustrated, many with multiple images. This is the first dedicated guide to these beautiful animals in this area of the Indian Ocean.

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).