This crustacean is known from the Strait of Georgia, Canada, to southern California, USA.
In adults, the basal antennular segments lack front side projections.
It is known from benthic sediments on the continental shelf, slope and in submarine canyons.
In adults, the body surface is smooth to slightly scaled.
In adults, the spines on the side plates of the seventh thoracic segment are reduced or absent.
An extinction-risk assessment has not been added yet.