Species Detail - Trigonium alternans - Species information displayed is based on all datasets.
Terrestrial Map - 10km
Terrestrial Map - 10km
Distribution of the number of records recorded within each 10km grid square (ITM).Marine Map - 50km
Marine Map - 50km
Distribution of the number of records recorded within each 50km grid square (WGS84).
Trigonium alternans
N/A
NHMSYS0021058070
RecommendedWell-formed
Biddulphia alternans (J. W. Bailey) Van Heurck, 1883, Biddulphia alternans , Biddulphia alternans (J.W.Bailey) Van Heurck, 1885
N/A
tralt
(J.W.Bailey) A.Mann, 1907
Diatom
Species
108
4
4
30/05/1982
12/06/2003
22 April (recorded in 2003)
14 October (recorded in 2002)
National Biodiversity Data Centre, Ireland, Trigonium alternans, accessed 13 June 2025, <https://maps.biodiversityireland.ie/Species/290603>