Jesogammarus (Jesogammarus) ikiensis sp. n., holotype, male, 13.1 mm, NSMT-Cr 24107, Ishida, Iki, Nagasaki Prefecture, Japan. A coxa–merus and coxal gill of pereopod 3, lateral view B carpus–dactylus of pereopod 3, lateral view C coxa–merus and coxal gill of pereopod 4, lateral view D carpus–dactylus of pereopod 4, lateral view E coxal gill of pereopod 5, lateral view F coxa–merus of pereopod 5, lateral view G carpus–dactylus of pereopod 5, lateral view.

 
 
  Part of: Tomikawa K (2015) A new species of Jesogammarus from the Iki Island, Japan (Crustacea, Amphipoda, Anisogammaridae). ZooKeys 530: 15-36. https://doi.org/10.3897/zookeys.530.6063