This crustacean is known from Puget Sound, Washington, USA.
In adult females, the head is wider in front than behind and lacks horn-like front side projections.
It parasitizes the gills of hermit crabs of the genus Pagurus.
In adult females, the inner branches of abdominal appendages one to five are much larger than the outer branches, elongated and pointed, with irregular raised ridges.
In adult females, the side plates of thoracic segments five to seven are not developed as thin lamellae.
An extinction-risk assessment has not been added yet.