This crustacean is known from California, USA, to Mexico.
In adult females, the head is longer than wide and deeply immersed in the thorax.
It parasitizes the gills of two species of hermit crabs.
In adult females, the sixth thoracic segment is much longer than the other segments.
In adult females, the abdominal appendages divide into two leaf-like, lance-shaped branches.
An extinction-risk assessment has not been added yet.