In other words the shell of all limpets is shaped more or less like that of most true limpets.
When this species was named it was thought to be a true limpet.
It was at that point thought to be an archaeogastropod (i.e. a true limpet).
The presence of this internal shelf distinguishes this species easily from the true limpets.
This subclass contained all of the true limpets.
This article is mainly about the true limpets.
Some key-hole limpets have a hole at the top, through which gas exchange can occur (they are not true limpets).
The true limpets have an internal structure much like that of other members of Mollusca.
Representatives of the Patellogastropoda, true limpets, live on the rocky coasts of all oceans.
Cellana grata is a true limpet, that feeds on epilithic biofilm.