Graduate School of Engineering and Science; University of the Ryukyus; 1 Senbaru; Nishihara; Nakagami; Okinawa; 903-0213 Japan.
Natural History Museum and Institute; Chiba; 955-2 Aoba-cho; Chuo-ku; Chiba; 260-8682 Japan.
Zootaxa. 2023 Apr 21;5270(3):561-572. doi: 10.11646/zootaxa.5270.3.7.
A new species of the laomediid mud shrimp genus Naushonia Kingsley, 1897 is described and illustrated based on seven specimens collected from Okinawa Island, Ryukyu Islands, southwestern Japan. All specimens of Naushonia karashimai n. sp. were collected from burrows of a large axiidean shrimp, Neaxius acanthus (A. Milne-Edwards, 1879), which inhabits seagrass beds in inner reef lagoons. The new species is easily distinguished from all 16 known congeners by its tridentate rostrum and relatively narrow pereopod 1 palm with a proximally located pollex. Sequences of the mitochondrial 16S rRNA and COI genes were newly generated for five species and two species of Naushonia, including the new species, respectively. Preliminary phylogenetic analysis using sequences of the 16S rRNA gene was performed.
描述并图示基于从日本西南部琉球群岛冲绳岛采集的七个标本，发现并描述了一个 Laomediidae 泥虾属 Naushonia Kingsley, 1897 的新种。Naushonia karashimai n. sp. 的所有标本均采集自大螯虾 Neaxius acanthus (A. Milne-Edwards, 1879) 的洞穴中，大螯虾栖息在内礁泻湖的海草床中。新种与所有已知的 16 个近缘种最容易通过其三叉形的额角和相对较窄的第一对步足掌部，以及近端的拇指来区分。分别为 5 种和 2 种 Naushonia 的线粒体 16S rRNA 和 COI 基因序列进行了新的生成，包括新种。使用 16S rRNA 基因序列进行了初步的系统发育分析。
