List of non-marine molluscs of Ireland

Molluscs that are fully adapted to live in the sea are not included here, except for one marine pulmonate snail that breathes air.

Some species of gastropods listed (e.g. Peringia ulvae) live in habitats that are intermediate between freshwater and saltwater.

Those species that do not have a shell usually do not leave an archaeological or fossil record, and therefore it is especially difficult to determine whether they are native or introduced.

[2] A recent regional red list has been published of the non-marine molluscs of Ireland by Byrne et al.

This publication has sparked some media discussion about molluscan conservation in Ireland, including articles written in the Irish Times.

Müller, 1774) Zonitoides excavatus (Alder, 1830) The list is arranged by biological affinity, rather than being alphabetical by family.

An attempt has been made to label the families as aquatic, terrestrial or intermediate, and an indication is given where it is thought that the species is introduced.

They are tropical, and thus are incapable of surviving in the wild in Ireland; instead they have established themselves as uninvited inhabitants of aquaria within greenhouses, and similar artificially-heated aquatic habitats.