139.54173, 35.14: 10 Treatments

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Metodius leucomaculatus   sp. nov.  Ariyama, Hiroyuki, 2021, Five species of the family Odiidae (Crustacea: Amphipoda) collected from Japan with descriptions of a new genus and four new species, Zootaxa 5067 (4), pp. 485-516 : 493-499 493-499
Tetrastemma persona   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
Maera sagamiensis   sp. nov.  Ariyama, Hiroyuki, 2020, Species of the Maera - clade collected from Japan. Part 3: genera Maera Leach, 1814, Meximaera Barnard, 1969 and Orientomaera Ariyama, 2018 (addendum), with a key to Japanese species of the clade (Crustacea: Amphipoda: Maeridae), Zootaxa 4743 (4), pp. 451-479 : 459-460 459-460
Eopilidion misakiense   sp. nov.  Kajihara, Hiroshi, Abukawa, Shushi & Chernyshev, Alexei V., 2022, Exploring the basal topology of the heteronemertean tree of life: establishment of a new family, along with turbotaxonomy of Valenciniidae (Nemertea: Pilidiophora: Heteronemertea), Zoological Journal of the Linnean Society 196, pp. 503-548 : 516-517 516-517
Gebiacantha sagamiensis   sp. nov.  Komai, Tomoyuki, 2017, Gebiacantha sagamiensis, a new species of upogebiid shrimp (Crustacea: Decapoda: Gebiidea) from Sagami Bay, central Japan, Zootaxa 4263 (3), pp. 578-586 : 578-585 578-585
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
Metarhachotropis parva   sp. nov.  Ariyama, Hiroyuki & Kohtsuka, Hisanori, 2022, Metarhachotropis parva, a new genus and species of Eusiridae (Crustacea: Amphipoda) from Sagami Bay, central Japan, Zootaxa 5188 (1), pp. 95-100 : 96-99 96-99
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
Dulichia latimana   sp. nov.  Ariyama, Hiroyuki, 2019, Four Species of Dulichiidae (Crustacea: Amphipoda) from Japan, with the Description of a New Genus and Two New Species, Species Diversity 24 (1), pp. 29-48 : 32-40 32-40
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