Species Detail - Herring-bone hydroid (Halecium halecinum) - 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
Halecium halecinum
Herring-bone hydroid
NBNSYS0000175601 RecommendedWell-formed
N/A
hahal
(Linnaeus, 1758)
Coelenterate (=cnidarian)
Species
252
89
39
31/05/1993
15/09/1996
1 January (recorded in 2011)
25 November (recorded in 1993)
Trinity College, Marine sites, habitats and species data collected during the BioMar survey of Ireland., National Biodiversity Data Centre, Ireland, Herring-bone hydroid (Halecium halecinum), accessed 16 July 2025, <https://maps.biodiversityireland.ie/Dataset/258/Species/16119>

Records per month (across all datasets)

Records per year (across all datasets)