Jesogammarus (Jesogammarus) ikiensis sp. n., not preserved. A precopula pair (male: upper, female: lower) B male, approx. 13 mm. Photographed by Ryu Uchiyama.

 
 
  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