It is more closely related to porcelain crabs and hermit crabs.

These include two species of porcelain crabs, and squat lobsters.

The abdomen of the porcelain crab is long and folded underneath it, free to move.

This porcelain crab is usually found within the stinging tentacles of a number of sea anemone species.

The limb is regrown by the porcelain crab over the period of several moults.

Petrolisthes laevigatus is a species of porcelain crab found in Chile and Peru.

Females have a large pleon, similar to that of other porcelain crabs, covering almost all of the sternum.

Its common names include "spotted porcelain crab" and "Say's porcellanid".

This makes Jurellana the oldest known porcelain crab.

Allopetrolisthes is a genus of porcelain crabs, comprising three species: