This crustacean is known from the Baja California peninsula region and Gulf of California, Mexico.
In adult females, the front margin of the head is produced.
It parasitizes the gill chambers of woolly sculpin, northern clingfish and reef finspot.
In adult females, the merus and carpus of the fourth leg are expanded.
In adult females, the tail plate is broadly rounded and about 1.5 to 2 times as wide as long.
An extinction-risk assessment has not been added yet.