This crustacean is known from northern California, USA, to Mexico.
In adults, the upper thorax has diffuse pigment patches.
It is known from kelp holdfasts and deep-water rocks.
In adults, the first five abdominal segments are completely fused on the back.
In adults, the outer branches of the uropods do not cover the base of the tail plate.
An extinction-risk assessment has not been added yet.