Stygobromus anacostensis sp. nov., Holotype male, 5.9 mm (USNM 1606902): A antenna 1 (single aesthetasc enlarged) C left mandible (palp omitted) D right mandible (lacinia mobilis enlarged). Paratype male, 5.7 mm (USNM 1606904): B antenna 2 (single calceolus enlarged). Scale bars: 0.5 mm (A, B); 0.25 mm (C, D).

 
 
  Part of: Niemiller ML, Cannizzaro AG, Sawicki TR, Culver DC (2024) A new species of Stygobromus Cope, 1872 (Amphipoda, Crangonyctidae) from a hypotelminorheic seepage spring in Washington, D.C., USA. Subterranean Biology 48: 117-146. https://doi.org/10.3897/subtbiol.48.112984