This crustacean is known from the Strait of Georgia, Canada, to southern California, USA.
In adults, the front projection of the head has a blunt tip.
It occurs under rocks in the intertidal zone.
In adults, the rounded central rear projection of the tail plate extends behind the lateral spines.
In adults, the basal third of the lower propodal margin of the first walking leg has conspicuous denticles.
An extinction-risk assessment has not been added yet.