Family Ophidiasteridae – Linckia guildingii Gray,1840
Ann.mag.Nat.Hist.,vol.6,p.285.
The grey Linckia, while not as common as the other two species, is encountered frequently on reefs of the Great Barrier Reef. The grey coloration conceals the animal when crawling over dead coral clumps which are covered by filamentous algae, but the animal is conspicuous when on coral sand. Although the adult starfish is uniform grey in color, juveniles are mottled white, grey and purple, and do not lose this appearance until a size of about 80 mm arm radius.
Size Distribution over study period –Linckia guildingii
Major Radius / Minor Radius Distribution –Linckia guildingii
Charonia 