This crustacean is known from southern California, USA, to Ecuador.
In adults, the antennules are elbowed, with the second basal segment arising at right angles to the first.
It is occasionally found on fishes.
In adults, the antennae extend beyond the seventh thoracic segment.
In adults, the uropod branches have truncate tips, and the outer branch falls short of the hind edge of the tail plate.
An extinction-risk assessment has not been added yet.