This crustacean is known from Canada, the western USA, western South America and Korea.
In adults, each side of the tail plate has three spine-like teeth.
It is known from algae, and occasionally from inside sponges.
In adults, the lower margin of the propodus of the first walking leg lacks denticles on its basal third.
In adults, the eyes lie on the upper sides of the head without reaching its lateral margins.
An extinction-risk assessment has not been added yet.