List of tunicates of Ireland

There are 81 species of tunicate (subphylum Tunicata) recorded in Ireland.

Family Clavelinidae

 * Clavelina lepadiformis (light-bulb sea squirt)

Family Didemnidae

 * Didemnum fulgens
 * Didemnum maculosum 
 * Didemnum vexillum (carpet sea squirt, an invasive species recorded in Strangford Lough in 2012)
 * Diplosoma listerianum 
 * Diplosoma spongiforme
 * Lissoclinum perforatum
 * Trididemnum cereum 
 * Trididemnum tenerum

Family Holozoidae

 * Distaplia rosea 

Family Polycitoridae

 * Archidistoma aggregatum

Family Polyclinidae

 * Aplidium densum
 * Aplidium elegans
 * Aplidium glabrum 
 * Aplidium nordmanni
 * Aplidium pallidum
 * Aplidium proliferum
 * Aplidium punctum
 * Aplidium turbinatum
 * Morchellium argus (red-flake ascidian)
 * Polyclinum aurantium
 * Synoicum incrustatum
 * Synoicum pulmonaria

Family Pycnoclavellidae

 * Pycnoclavella aurilucens
 * Pycnoclavella producta
 * Pycnoclavella stolonialis

Family Ascidiidae

 * Ascidia conchilega
 * Ascidia mentula
 * Ascidia virginea
 * Ascidiella aspersa
 * Ascidiella scabra
 * Phallusia mammillata

Family Cionidae

 * Ciona intestinalis (vase tunicate)

Family Corellidae

 * Corella eumyota 
 * Corella parallelogramma

Family Diazonidae

 * Diazona violacea

Family Perophoridae

 * Perophora listeri

Family Styelidae

 * Botrylloides leachii
 * Botryllus schlosseri (star ascidian / golden star tunicate)
 * Dendrodoa grossularia
 * Distomus variolosus
 * Polycarpa fibrosa 
 * Polycarpa gracilis
 * Polycarpa pomaria
 * Polycarpa scuba
 * Stolonica socialis
 * Styela clava (stalked sea squirt, club sea squirt, club tunicate, Asian tunicate, leathery sea squirt, rough sea squirt)
 * Styela coriacea

Family Molgulidae (sea grapes)

 * Molgula citrina
 * Molgula complanata 
 * Molgula manhattensis 
 * Molgula occulta 
 * Molgula oculata  (sea grape)

Family Pyuridae

 * Boltenia echinata
 * Microcosmus claudicans
 * Pyura microcosmus
 * Pyura squamulosa 
 * Pyura tessellata 

Pelagic tunicates (free-swimming)

Family Oikopleuridae
5 species

Family Fritillariidae
4 species

Family Doliolidae
3 species

Family Salpidae (salps)
7 species

Family Pyrosomatidae (pyrosomes)
1 species