This crustacean is known from the Strait of Georgia, Canada, to Mexico.
In adult males, the eyes are sessile, with tubercles on the lens surface.
It is known from benthic sediments on the continental shelf, slope and in submarine canyons.
In adult males, the abdominal appendages are oval and paddle-like.
In adult males, the tail plate is distinctly T-shaped.
An extinction-risk assessment has not been added yet.