Critter Club went to Taylor’s Mistake Beach to look at the rock pools and found several species of limpets.
Limpets are a type of Gastropod (which includes garden snails).
They have an incredible grip to rocks when they need to, but also move via a snail-like foot.
Their tongue (radula) rasps algae from rocks, similar to a snail.
The tongue has teeth, which are reinforced with iron hydroxide (goethite).
There is a really great article on wikipedia. It has a very high quality and detailed limpet anatomy diagram:
The ring of gills very interesting – this is how the limpet gets it’s oxygen from the water.
Here is a link to a page on Naturewatch about limpets: http://naturewatch.org.nz/taxa/47679-Patellogastropoda
As of now 11 species have been recorded in New Zealand on Naturewatch