Longitude (deg): -5.0. Latitude (deg): 50.4. Longitude (deg/min): 5° 0' W. Latitude (deg/min): 50° 30' N. Vice county name: West Cornwall. Vice county no.: 1. Country: England. Stage: Perfect stage. Associated species: Chthamalus. Identified by: Malcolm Storey. Comment: on barnacles (Chthamalus sp) on rocks above low neap tide level. Detail to note: the lichen perithecia within the shell (black dots). Category: standard photograph or close-up. Real world width(mm): 0. Photographic equipment used: Canon EOS400D digital SLR with Tamron SP AF Di 90mm Macro 1:1 lens.