Records of brachyuran crabs (Decapoda) from seamounts in the Mariana Ridges, with description of a new species of Samadinia Ng & Richer de Forges, 2013, and rediscovery of Goniopugettia tanakae Sakai, 1986 Author Komai, Tomoyuki Natural History Museum and Institute, Chiba, 955 - 2 Aoba-cho, Chuo-ku, Chiba 260 - 8682, Japan Author Tsuchida, Shinji 0000-0002-8600-2386 Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2 - 15, Natsushima-cho, Yokosuka, Kanagawa 237 - 0061, Japan tsuchidas@jamstec.go.jp Author Fujiwara, Yoshihiro 0000-0002-1833-1866 Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2 - 15, Natsushima-cho, Yokosuka, Kanagawa 237 - 0061, Japan fujiwara@jamstec.go.jp text Zootaxa 2025 2025-11-20 5722 3 326 344 https://doi.org/10.11646/zootaxa.5722.3.2 journal article 314018 10.11646/zootaxa.5722.3.2 2af73fa2-6066-45dc-86f8-1e3bb668ba7b 1175-5326 17892223 FB4DB2FE-021A-481C-8034-6ED8BB5E35A2

TABLE 2. Pairwise distance of the mitochondrial 16S rRNA gene among three species of Samadinia based on the Kimura 2-parameter model. The rate variation among sites was modeled with a gamma distribution (shape parameter = 1). This analysis involved 6 nucleotide sequences. All ambiguous positions were removed for each sequence pair (pairwise deletion option).

	Species	GenBank accession number	1	2	3	4	5
1	Samadinia quindecimspina sp. nov.	LC856564
2	Samadinia galathea (Griffin & Tranter, 1986b)	MZ424948	0.0304
3	Samadinia galathea (Griffin & Tranter, 1986b)	MZ424947	0.0303	0.0000
4	Samadinia pulchra (Miers in Tizard, Moseley, Buchanan & Murray, 1885)	MZ424951	0.0117	0.0262	0.0260
5	Samadinia pulchra (Miers in Tizard, Moseley, Buchanan & Murray, 1885)	MZ424950	0.0155	0.0262	0.0260	0.0000
6	Samadinia pulchra (Miers in Tizard, Moseley, Buchanan & Murray, 1885)	MZ424949	0.0119	0.0264	0.0264	0.0000	0.0000