2015

• Tomikawa, K. 2015. A new species of Jesogammarus from the Iki Island, Japan (Crustacea, Amphipoda, Anisogammaridae). Zookeys 530: 15-36. DOI: 10.3897/zookeys.530.6063 Preview (PDF) Reference page. 

2016

• Narahara-Nakano, Y., Kakui, K. & Tomikawa, K. 2016. Opisa takafuminakanoi, a new species of Opisidae from Hokkaido, Japan (Crustacea: Amphipoda). Zootaxa 4200(2): 335–339. DOI: 10.11646/zootaxa.4200.2.9 . Reference page. 

• Shimomura, M. & Tomikawa, K. 2016. Epimeria abyssalis sp. n. from the Kuril-Kamchatka Trench (Crustacea, Amphipoda, Epimeriidae). ZooKeys 638: 125-142. DOI: 10.3897/zookeys.638.10329 . Reference page. 

• Tomikawa, K., Tanaka, H. & Nakano, T. 2016. A new species of the rare genus Priscomilitaris from the Seto Inland Sea, Japan (Crustacea, Amphipoda, Priscomilitaridae). ZooKeys 607: 25-35. DOI: 10.3897/zookeys.607.9379 . Reference page. 

2017

• Matsukami, S., Nakano, T. & Tomikawa, K. 2017. A new species of the genus Nicippe from Japan (Crustacea, Amphipoda, Pardaliscidae). ZooKeys 668: 33—47. DOI: 10.3897/zookeys.668.12181 . Reference page. 

• Tomikawa, K., Nakano, T. & Hanzawa, N. 2017. Two new species of Jesogammarus from Japan (Crustacea, Amphipoda, Anisogammaridae), with comments on the validity of the subgenera Jesogammarus and Annanogammarus. Zoosystematics and Evolution 93(2): 189-210. DOI: 10.3897/zse.93.12125 . Reference page. 

2018

• Lee, C.W., Tomikawa, K., Nakano, T. & Min, G-S. 2018. A new species of the genus Pseudocrangonyx (Crustacea, Amphipoda, Pseudocrangonyctidae) from Korea. ZooKeys 735: 27–44. DOI: 10.3897/zookeys.735.21697 . Reference page. 

• Tomikawa, K., Hirashima, K., Hirai, A. & Uchiyama, R. 2018. A new species of Melita from Japan (Crustacea, Amphipoda, Melitidae). ZooKeys 760: 73–88. DOI: ''10.3897/zookeys.760.24778 . Reference page.