原著論文
A new species of Janirella Bonnier, 1896 (Isopoda: Asellota: Janirellidae) from western Japan Trench
2020 年 49 巻 p. 89-97
詳細
2020 年 49 巻 p. 89-97
A deep-sea isopod, Janirella (Janirella) longicauda sp. nov. (Asellota: Janirellidae), was found off the coast of Iwate Prefecture, west of the Japan Trench, at a depth of 3,370–3,547 m by trawling. Janirella longicauda sp. nov. can be distinguished from other species of Janirella Bonnier, 1896 by their long posterior pleotelson, the size differences between the posterior and anterior lateral processes in the pleotelson, the long and tapered rostrum and lateral processes in the pereonites, and the absence of dorsal spines on the pereonites and pleotelson. As a result of the description of this species, the number of species of Janirella (Janirella) known from NW Pacific becomes 12 species.
