Holsinger, J.R., Ansell, L.M. & Shafer, J. (2011)

Four new species of the subterranean amphipod genus Stygobromus (Amphipoda: Crangonyctidae) from shallow groundwater habitats on the Coastal Plain and eastern margin of the Piedmont in Maryland and Virginia, USA

. Zootaxa, 2972 (1), 1–21.
https://doi.org/10.11646/zootaxa.2972.1.1