Jan 7, 2016
#1032 - Patelloida insignis - Maltese Cross Limpet
Fairly common across much of Southern Australia. Not the only limpet with a cross-shaped pattern, but it is the most common over here, apparently.
Point Peron, Perth
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#1032 - Patelloida insignis - Maltese Cross Limpet
Fairly common across much of Southern Australia. Not the only limpet with a cross-shaped pattern, but it is the most common over here, apparently.
Point Peron, Perth
#772 - Patelloida alticostata - Tall-ribbed Star Limpet
A genus of limpets distinguished by the large radial ridges, and resultant wavy outline to the shell. Like the more familiar true limpets, harmless algae-scrapers. Also like the True Limpets, possess a single feathery gill.
Cape Peron, Perth
EDIT: Helpfully IDed further by Joan Hales at BowerBird. According to her “A common southern Australian shell attached to rocks from about the half tide level down. The black lines are a give-away.“