Rosette Barnacle, Tetraclitella purpurascens
Barnacle with a low, wide shell made up of four wall plates, with a distinctive, rough, scaly appearance.
Exterior grey-white, with a mauve or greenish tinge.
Occurs from Queensland, south around southern Australian shores to Western Australia.
Found at any level on rocky ocean shores, up to high water neap. Always found in protected and semi-protected situations. It prefers crevices, or shelters under boulders, or sloping rocks where there is shade. It is sensitive to being dried out by the sun.
Bennett, I. (1987) W.J. Dakin's classic study: Australian Seashores. p.246, Angus & Robertson, Sydney.
Davey, K. (1998) A Photographic Guide to Seashore Life of Australia. p.43, New Holland, Sydney.
Edgar, G.J. (1997) Australian Marine Life: the plants and animals of temperate waters. p.173, Reed Books, Kew.
Jones, D, & Morgan, G. (1994) A Field Guide to Crustaceans of Australian Waters. p.34, Reed.
Quinn, G.P., Wescott, G.C. & Synnot, R.N. (1992) Life on the Rocky Shores of South-Eastern Australia: an illustrated field guide. p.64, Victorian National Parks Association, Melbourne.
Marine Research Group of Victoria (1984) Coastal Invertebrates of Victoria: an atlas of selected species. p.106, Museum of Victoria, Melbourne.
Underwood, A.J. & Chapman, M.G. (1993) Seashores: a beachcomber's guide. p.36, New South Wales University Press, Sydney.