Country: Eire. Stage: Living animal. Associated species: Saccorhiza polyschides. Identified by: Malcolm Storey. Comment: on Saccorhiza polyschides in tidal rapids. Other taxa shown: T. arctica on left (no spots), T. monacha centre and right. Category: standard photograph or close-up. Real world width(mm): 0. Photographic equipment used: 35mm transparencies (on a variety of films, but Agfa CT18 in the 1960's to early 1980's followed by Fujichrome in the late 1980's.) Transparencies scanned with Minolta Dimage Scan Dual II AF-2820U transparency scanner..