This crustacean is known from British Columbia, Canada, to California, USA.
In adults, the propodus of the first walking leg is narrow, less than twice the width of its terminal claw.
It is a fully marine species.
In adults, the inner branches of the fourth and fifth abdominal appendages lack gill folds.
In adults viewed from the side, the side plates of thoracic segments two to four have raised front edges and unraised rear edges, giving them a somewhat S-shaped appearance.
An extinction-risk assessment has not been added yet.