Species Detail - Ark-shell (Arca tetragona) - Species information displayed is based on the dataset "Marine sites, habitats and species data collected during the BioMar survey of Ireland.".

Terrestrial Map - 10km

Distribution of the number of records recorded within each 10km grid square (ITM).
Live Map

Marine Map - 50km

Distribution of the number of records recorded within each 50km grid square (WGS84).
Live Map
Arca tetragona
Ark-shell
NHMSYS0021055018 RecommendedWell-formed
N/A
artet
Poli, 1795
Mollusc
Species
22
17
11
17/05/1994
10/09/1996
17 May (recorded in 1994)
21 September (recorded in 1995)
Trinity College, Marine sites, habitats and species data collected during the BioMar survey of Ireland., National Biodiversity Data Centre, Ireland, Ark-shell (Arca tetragona), accessed 22 February 2026, https://maps.biodiversityireland.ie/Dataset/258/Species/287554

Records per month (across all datasets)

Records per year (across all datasets)