Larger animal - disappearing into hole in bark

Description :

Longitude (deg): -1.9. Latitude (deg): 50.7. Longitude (deg/min): 1° 60' W. Latitude (deg/min): 50° 50' N. Vice county name: Dorset. Vice county no.: 9. Country: England. Stage: Living animal. Identified by: Malcolm Storey. Comment: 2 flatworms under fallen pine bark. Category: standard photograph or close-up. Where photo was taken: In captivity. Orientation: "Left, or facing to left". Photographic equipment used: Canon EOS700D dSLR with Tamron SP AF Di 90mm Macro 1:1 lens.