Pseudocrangonyx crassus sp. nov. Holotype: male, NIBRV0000862809, 10.6 mm, from Gossigul Cave, South Korea. A sternal gills B epimeral plates 1–3 C pleopod 1 D pleopod 2 E pleopod 3 F uropod 1 G uropod 2 H uropod 3 I telson. Abbreviations: Ep, epimeral plate; Pn, pereonite; sg, sternal gill; ir, inner ramus; and or, outer ramus.

 
 
  Part of: Jung TW, Kim JG, Kim M-S, Yoon SM (2020) Five new subterranean amphipods of the genus Pseudocrangonyx from Korea (Crustacea, Amphipoda, Pseudocrangonyctidae). ZooKeys 970: 1-50. https://doi.org/10.3897/zookeys.970.55035