title: A new species of the caridean shrimp genus Lebbeus White, 1847 (Crustacea: Decapoda: Thoridae) from the southwestern Sea of Okhotsk, Hokkaido, Japan.
abstract: A new species of the caridean shrimp genus Lebbeus White, 1847 (Thoridae), L. fujimotoi n. sp. is described and illustrated on the basis of material from the Nemuro Strait, southwestern part of the Sea of Okhotsk, Hokkaido, Japan, at depths of 500-800 m. The new species belongs in the informal species group characterized by the possession of an epipod only on the third maxilliped, containing only L. elegans Komai, Kohtsuka & Hayashi, 2004 among the 65 previously described specific taxa. The elongate and strongly upturned rostrum with more numerous ventral teeth (seven or eight versus one to four) and the presence of a posteroventral tooth on the fourth pleonal pleuron immediately distinguish the new species from L. elegans. Species of Lebbeus reported from the Sea of Okhotsk are briefly overviewed.
authors.affiliation: Marine Science Museum, Fukushima Prefecture, Aquamarine Fukushima, 50 Tatsumi-cho, Onahama, Iwaki, Fukushima, 971-8101 Japan.; Email: matsu@marine.fks.ed.jp.
authors.forename: Koji
authors.initials: K
authors.lastname: Matsuzaki
authors.affiliation: Marine Science Museum, Fukushima Prefecture, Aquamarine Fukushima, 50 Tatsumi-cho, Onahama, Iwaki, Fukushima, 971-8101 Japan.; Email: unknown.
authors.forename: Mai
authors.initials: M
authors.lastname: Hibino
authors.affiliation: Natural History Museum and Institute, Chiba, 955-2 Aoba-cho, Chuo-ku, Chiba, Chiba, 260-8682 Japan; Email: unknown.
authors.forename: Tomoyuki
authors.initials: T
authors.lastname: Komai
mesh_terms: D000818:Animals; D033364:Decapoda / Q000033:anatomy & histology* / Q000145:classification*; D005260:Female; D007564:Japan; D008297:Male; D013045:Species Specificity