title: List of marine molluscs of Ireland
text: # 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
  