Longitude (deg): -2.4. Latitude (deg): 50.5. Longitude (deg/min): 2° 30' W. Latitude (deg/min): 50° 40' N. Vice county name: Dorset. Vice county no.: 9. Country: England. Stage: Tube (occupied). Associated species: Fucus serratus. Identified by: Malcolm Storey. Comment: on Saw-wrack (Fucus serratus). Detail to note: 4 whorls. Category: macro-photograph. Image scaling: highly enlarged. Real world width(mm): 0. Photographic equipment used: Canon EOS400D digital SLR and MPE 65mm x1 to x5 macro lens.