robusta, Nansenia Abe [T.] 1976:27, Figs. 1-6 [Bulletin of the Biogeographical Society of Japan v. 31 (no. 4); ref. 7367] South China Sea, 20°25.7'-25.2'N, 116°10.5'-7.3'E, depth 720-695 meters. Holotype (unique): ZUMT 53953. Type catalog: Aizawa et al. 2022:222 [ref. 39655]. •Valid as Nansenia robusta Abe 1976 -- (Aizawa et al. 2022:222 [ref. 39655]). •Synonym of Nansenia ardesiaca Jordan & Thompson 1914 -- (Kawaguchi & Butler 1984:13 [ref. 17434]). Current status: Synonym of Nansenia ardesiaca Jordan & Thompson 1914. Microstomatidae. Habitat: marine.