List of marine molluscs of Ireland
# List of marine molluscs of Ireland

The list of marine molluscs of Ireland is a list of marine species that form a part of the molluscan fauna of Ireland.

Their habitats include littoral, mesopelagic, pelagic, oceanic zone, benthic, deep ocean water and deep sea.

## Class Aplacophora (worm-like molluscs)

### Subclass Solenogastres

There were recorded at least 2 species of solenogastres in Ireland.

Family Rhopalomeniidae

* Rhopalomenia aglaopheniae (Kowalewsky & Marion, 1887)

Family Neomeniidae

* Neomenia carinata Tullberg, 1875

### Subclass Caudofoveata

There was recorded at least 1 species of Caudofoveata in Ireland.

Family Chaetodermatidae

* Chaetoderma nitidulum Lovén, 1844

## Class Polyplacophora (sea cradles, loricates)

There were recorded at least 13 species of polyplacophorans in Ireland.

Family Acanthochitonidae

* Acanthochitona crinita (Pennant, 1777)
* Acanthochitona discrepans (Brown, 1827)
* Acanthochitona fascicularis (Linnaeus, 1767)

Family Ischnochitonidae

* Lepidochitona cinerea (Linnaeus, 1767)
* Tonicella marmorea (Fabricius, 1780)
* Tonicella rubra (Linnaeus, 1767)

Family Leptochitonidae

* Callochiton achatinus (Brown, 1827)
* Callochiton septemvalvis (Montagu, 1803)
* Hanleya hanleyi (Bean in Thorpe, 1844)
* Lepidopleurus asellus (Gmelin, 1791)
* Lepidopleurus cancellatus (Sowerby, 1839)
* Leptochiton asellus (Gmelin, 1791)
* Leptochiton cancellatus (G. B. Sowerby II, 1840)

## Class Scaphopoda (tusk shells, tooth shells)

There were recorded at least 2 species of tusk shells in Ireland.

Family Dentaliidae

* Antalis entalis (Linnaeus, 1758)
* Antalis vulgaris (da Costa, 1778)

## Class Cephalopoda (inkfish)

There were recorded at least 5 species of cephalopods in Ireland.

Family Octopodidae (most octopuses)

* Eledone cirrhosa (Lamarck, 1798)
* Octopus vulgaris Cuvier, 1797

Family Sepiolidae

* Rossia macrosoma (Delle Chiaje, 1829)
* Sepiola atlantica d'Orbigny, 1839

Family Architeuthidae (giant squid)

* Architeuthis dux Steenstrup, 1857
