pagurus

Etymology
From.

Noun

 * 1) A kind of crab.
 * 2) * c. 77-79 AD, Pliny the Elder, Naturalis Historia, 9.53
 * cancrorum genera carabi astaci maeae paguri heracleotici leones et alia ignobiliora
 * There are various kinds of crabs, known as carabi, astaci, maeae, paguri, heracleotici, lions, and others of less note.