139.56041, 35.125065: 10 Treatments

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Tetrastemma album   sp. nov.  Hookabe, Natsumi, Kohtsuka, Hisanori, Fujiwara, Yoshihiro, Tsuchida, Shinji & Ueshima, Rei, 2023, Three new species in Tetrastemma Ehrenberg, 1828 (Nemertea, Monostilifera) from sublittoral to upper bathyal zones of the northwestern Pacific, ZooKeys 1146, pp. 135-146 : 135 135
Eiconaxius farreae     Komai, Tomoyuki, 2024, Reappraisal of Eiconaxius farreae Ortmann, 1891 and Eiconaxius mortenseni Sakai, 1992 (Decapoda: Axiidea: Axiidae), with description of a new species from Japan, Zootaxa 5419 (4), pp. 495-524 : 497-506 497-506
Discorhabdella hispida   sp. nov.  Ise, Yuji, Vacelet, Jean, Izumi, Takato, Woo, Sau Pinn & Tan, Shau Hwai, 2021, First record of the genus Discorhabdella (Porifera, Demospongiae, Poecilosclerida, Crambeidae) from Sagami Bay, Japan with description of two new species, ZooKeys 1076, pp. 67-81 : 67 67
Hamacantha (Vomerula) mamoi   sp. nov.  Ise, Yuji, Woo, Sau Pinn, Tan, Shau Hwai & Fujita, Toshihiko, 2019, First record of Hamacantha (Porifera, Demospongiae, Merliida, Hamacanthidae) from Japan, with description of two new species, Zootaxa 4657 (3), pp. 474-482 : 476-478 476-478
Pannychia rinkaimaruae   sp. nov.  Ogawa, Akito, Kobayashi, Itaru, Kohtsuka, Hisanori & Fujita, Toshihiko, 2023, Two new species of the bathyal holothurian genus Pannychia (Elasipodida, Laetmogonidae) from Japanese waters, Zootaxa 5323 (1), pp. 105-125 : 116-121 116-121
Eiconaxius mortenseni     Komai, Tomoyuki, 2024, Reappraisal of Eiconaxius farreae Ortmann, 1891 and Eiconaxius mortenseni Sakai, 1992 (Decapoda: Axiidea: Axiidae), with description of a new species from Japan, Zootaxa 5419 (4), pp. 495-524 : 506-512 506-512
Tymolus uncifer     Komai, Tomoyuki, 2023, Clarification of the identity of deep-sea crab Tymolus uncifer (Ortmann, 1892) and validation of Tymolus melanommus (Doflein, 1904) (Decapoda: Brachyura: Cyclodorippidae), Zootaxa 5352 (1), pp. 46-72 : 49-57 49-57
Nanalcyon sagamiense   gen. nov.  Ima, Yukimitsu, 2013, Two new paralcyoniid octocorals from Japan (Anthozoa: Alcyonacea), Zootaxa 3652 (4), pp. 424-436 : 430-431 430-431
Agathotanais misakiensis   sp. nov.  Kakui, Keiichi & Kohtsuka, Hisanori, 2015, Two New Shallow-water Species of Agathotanais (Crustacea: Tanaidacea) from Japan, Species Diversity 20 (1), pp. 45-58 : 46-51 46-51
Aoroides sagamiensis   sp. nov.  Ariyama, Hiroyuki & Kohtsuka, Hisanori, 2022, Three new species of the family Aoridae collected from Sagami Bay, central Japan (Crustacea: Amphipoda), Zootaxa 5159 (3), pp. 393-413 : 400-405 400-405