This crustacean is known from California, USA, to Mexico.
In adult females, the head is completely fused with the first thoracic segment, without an upper transverse groove.
It lives on soft-bottom substrates of the continental shelf.
Adult females have relatively long, narrow antennae.
In adult females, the front side extensions of thoracic segments two to four are broad at the base and blunt or obtusely rounded at the tip.
An extinction-risk assessment has not been added yet.