The Devonshire cup-coral, Caryophyllia smithii, is a small, colourful coral that looks remarkably like a sea-anemone (3). The whitish, cup-shaped external skeleton, the 'corallum', has many curved ridges and makes up the rocky cylindrical base in which the soft body part (the polyp) is held (2) (4). The beautiful and delicate-looking polyp may be a range of colours, including red, pink, orange, white, green or brown, and a contrasting, more opaque colour zig-zags around the central, elongated, slit-like mouth (2) (3) (5). Up to 80 tentacles, arranged in three circles, rise from the soft body part, and each terminates in a prominent, spherical white or brown knob (2) (5) (6). Although generally solitary, the Devonshire cup coral can occasionally be found in clusters of two to four individuals (4), and a barnacle (Pyrgoma anglicum) is commonly found attached to the external skeleton (2).
- Height: 1.5 cm (2)
- Diameter: 2.5 cm (2)