European cowrie  (Trivia monacha)

The European or spotted cowrie is a marine mollusc that has an egg-shaped glossy shell featuring many transverse ridges with a long, narrow aperture on the underside (2). The upper surface of the shell is usually a reddish brown colour, and has three characteristic spots that allow the species to be identified easily (3). The head, tentacles, foot and body of this mollusc are brightly coloured; they may be red, yellow, green, brown or orange (3).