This crustacean is known from Catalina Island, California, USA.
In adults, the terminal antennal portion is divided into multiple segments.
It is known from the brown algae Sargassum palmeri and Cystoseira neglecta.
In adults, the upper head has a distinct, slightly elongated tubercle.
In adults, the abdomen and tail plate form a single fused unit without suture lines.
An extinction-risk assessment has not been added yet.