This crustacean is known from northern California, USA, to Mexico.
In adults, the slender terminal portion of the antenna has three segments.
It is common on sandy beaches and burrows into sand beneath driftwood above the high-tide line.
In adults, small cone-shaped lobes project forward just in front of the eyes, and the middle of the head front forms a blunt lobe.
In adults, the base of each uropod has rounded and expanded rear outer margins.
An extinction-risk assessment has not been added yet.