This crustacean is known from central to southern California, USA.
In adult females, the head is partly fused with the first thoracic segment and separated from it only by short side notches.
It parasitizes the gills of the snapping shrimps Alpheopsis equidactylus and Synalpheus lockingtoni.
Adult females have small eyes.
In adult females, the tail plate is entirely set within the curved margins of the fifth abdominal segment.
An extinction-risk assessment has not been added yet.