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) Author Ariyama, Hiroyuki text Zootaxa 2020 2020-02-27 4743 4 451 479 journal article 10.11646/zootaxa.4743.4.1 44ef21b3-550b-4f82-950c-3d7db7e04de0 1175-5326 3690502 4F90419E-E06F-4990-84F7-3D0B1BA9AF0D Orientomaera Ariyama, 2018 [Japanese name: Tōyō- sunnariyokoebi-zoku] Orientomaera Ariyama, 2018: 217 . Diagnosis. See Ariyama (2018) . However in the gnathopod 2 palm, “margin with several blunt teeth” is modified to “margin with several blunt teeth or two distinct teeth”.