This map provides a quick look at the UK distribution of 6 of the most common and charismatic sea slugs we get in rockpools in the UK. The species chosen are below and correspond to our species focus blog posts. You can toggle them on and off using the checkboxes on the right.

All photos are clickable to view photo ownership.

Check below the table for more information on our data sources

Photo Common Name Latin Name
Spotted Seahare Aplysia punctata
Crowned Aeolis Facelina auriculata
Sea Lemon Archidoris pseudoargus
Sap-sucking Slug Elysia viridis
crested aeolis Antiopella cristata
Celtic Sea Slug Onchidella celtica

This is their geographic spread across the UK using all verified observations from iNaturalist for each species.

Toggle specific species on and off using check boxes.

Why only iNaturalist data? Though the National Biodiversity Newtwork (NBN) has records going back further, sea slugs are one of the most intensely recorded and verified marine groups on iNat. As such, we feel the iNaturalist data gives sufficient coverage of species over the UK to use solely for this.

Please note, numbers of observations of each species will increase from date of publication.