Stygobromus spinatus
Stygobromus spinatus, commonly called the  spiny cave amphipod is a troglomorphic species of amphipod in family Crangonyctidae. It is endemic to West Virginia in the United States. References

Freshwater crustaceans of North America
Crustaceans described in 1967
spinatus
Endemic fauna of West Virginia
Endemic crustaceans of the United States
Cave crustaceans