Potamolithus troglobius A (dorsal view) B (apertural view) C (apical view); Potamolithus aff. troglobiusD (dorsal view) E (apertural view) F (apical view); Potamolithus sp. 8 G (dorsal view) H (apertural view) I (apical view). Scale bars: 1mm. (Photographs: LBR Fernandes).

 
 
  Part of: Bichuette ME, Trajano E (2018) Diversity of Potamolithus (Littorinimorpha, Truncatelloidea) in a high-diversity spot for troglobites in southeastern Brazil: role of habitat fragmentation in the origin of subterranean fauna, and conservation status. Subterranean Biology 25: 61-88. https://doi.org/10.3897/subtbiol.25.23778