Integrative taxonomy of new neomphaloidean gastropods from deep-sea hot vents of the southwestern Pacific Author Chen, Chong X-STAR, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2 - 15 Natsushima-cho, Yokosuka, Kanagawa 237 - 0061, Japan cchen@jamstec.go.jp Author Poitrimol, Camille Sorbonne Université, CNRS, Station Biologique de Roscoff, UMR 7144 Adaptation et Diversité en Milieu Marin, Roscoff, France & Univ Brest, Ifremer, BEEP, F- 29280 Plouzané, France Author Matabos, Marjolaine Univ Brest, Ifremer, BEEP, F- 29280 Plouzané, France text Zoological Journal of the Linnean Society 2025 Statistics in Society 2024-05-23 203 2 1 20 https://doi.org/10.1093/zoolinnean/zlae064 journal article 308468 10.1093/zoolinnean/zlae064 d34c5c5c-148c-48ee-abc5-3959a81fdecc 0024-4082 14971909 2628014-2DEE-4754-88A1-44BA75E89A1D

Table 2. Genetic distance matrix of Symmetromphalus and Symmetriapelta species calculated from 658 bp of COI using the Kimura twoparameter model, with GenBank accession numbers in parentheses. New species described herein are indicated in bold.

Symmetromphalus		1	2	3	4
1	Symmetromphalus regularis (MW497416)
2	Symmetromphalus hageni (OK635566)	7.54%
3	Symmetromphalus mcleani (OK635558)	6.07%	6.49%
4	Symmetromphalus mithril (OK635567)	5.66%	6.49%	3.84%
Symmetriapelta		1	2	3	4	5
1	Symmetriapelta wareni (OK635417)
2	Symmetriapelta ‘ diodoroides ’ Sasaki & Kano MS sensu Hess et al. (2008) (AB331000)	0.30%
3	Symmetriapelta ‘ boucheti ’ Sasaki & Kano MS sensu Hess et al. (2008) (AB331001)	8.82%	8.82%
4	Symmetriapelta becki (OK635421)	9.91%	9.54%	8.70%
5	Symmetriapelta radiata (OK635439)	9.04%	9.04%	9.99%	9.96%