This crustacean is known from central and southern California, USA.
In adults, the first two basal segments of the antennules are greatly expanded.
It has been collected from fishes or from soft-bottom habitats.
In adults, the upper surface of the abdomen lacks tubercles.
In adults, the hind edge of the tail plate is truncate, finely scalloped and fringed with hairs.
An extinction-risk assessment has not been added yet.