This crustacean is known from California, USA.
In adult males, the uropods are very long, exceeding the length of the tail plate.
It occurs under rocks or in holdfasts of the kelp genus Macrocystis.
In adult males, the lateral tips of the first abdominal appendage are forked.
In adult males, the front of the head has a short central lobe.
An extinction-risk assessment has not been added yet.