The Collaborative International Dictionary of English v.0.48:

Pagurian \Pa*gu"ri*an\, n. [L. pagurus a kind of crab, Gr.
   pa`goyros.] (Zool.)
   Any one of a tribe of anomuran crustaceans, of which
   Pagurus is a type; the hermit crab. See Hermit crab,
   under Hermit.
   [1913 Webster]