Irish checklist:

No

Number of species of tunicates and lancelets:

Tunicates (Urochordata) = 72, Lancelets (Cephalachordata) = 1 (Ferriss et al. 2009)

Primary sources of distribution data:

There is no national tunicates and lancelets database.

• Irish Didemnum Species Database*

*Databases held by the National Biodiversity Data Centre and made accessible through Biodiversity Maps.

National conservation assessment:

No

Monitoring or repeat surveys in place:

No