What is the scientific name of a hermit crab?

There isn't one single scientific name for all hermit crabs. They belong to the infraorder Anomura, which is a large group of crustaceans that also includes the king crabs and porcelain crabs.

Within the Anomura, there are several families of hermit crabs, each with multiple species. For example, some common hermit crab families include:

* Paguridae: This is the largest family, with over 500 species.

* Diogenidae: This family includes the "true" hermit crabs.

* Coenobitidae: This family contains the terrestrial hermit crabs.

So, to specify the scientific name of a hermit crab, you need to know the genus and species. For example, the common hermit crab is scientifically named Pagurus bernhardus.