A revision of the australian species of notoacmea, colli sella and patelloida(Mollusca: Gastropoda: Acmaeidae)

The Australian species of Notoacmea, Collisella and Patelloida are revised on the basis of shell and radular characters. Six species are recognised in Notoacmea, two in Collisella and12, together with two subspecies of an Indian Ocean species, in Patelloida. The majority ofthe species are found in temperate Australia, there being only 6 taxa recognised fromtropical Australia. Patelloida septiformis Quoy & Caimard, 1834 and P. elongata QuoyGaimard, 1834 are both rejected from the Australian fauna.