Photis longicarpus sp. nov., holotype, NIBRIV0000753910, male, 4.9 mm, Geomeunyeo, Jeju-do, South Korea. A habitus B antenna 1 C antenna 2 D upper lip E left mandible F right mandible G, H maxilla 1 I maxilla 2. Scale bars: 0.05 mm (D, G–I), 0.1 mm (E, F), 0.2 mm (B, C), 0.5 mm (A).

 
 
  Part of: Jung TW, Coleman CO, Yoon SM (2019) Taxonomic study on the photid amphipods (Senticaudata, Corophiida, Photoidea, Photidae) from Korean waters, with descriptions of a new genus and seven new species. ZooKeys 886: 1-59. https://doi.org/10.3897/zookeys.886.38511