Holsinger, J. R., & Ansell, L. (2014).

A new species of the subterranean amphipod genus Stygobromus (Amphipoda: Crangonyctidae) from two caves and a spring in western Maryland, USA with additional records of undescribed species from groundwater habitats in central Maryland

. Zootaxa, 3768(3), 386–394. https://doi.org/10.11646/zootaxa.3768.3.6