Triforis fusca Dunker, 1860

Triforis fusca Dunker 1860: 237 .

Trifora fusca Dunker, 1860 — Viader 1937: 43.

Mesophora fusca (Dunker, 1860) — Marshall 1983: 46, fig. 4i, 19i–k.

Coriophora fusca (Dunker, 1860) — Özdikmen 2013: 254.

Type locality. Japan .

Type material. ZMB 101922 a, lectotype . ZMB 101922 b and SMF 304814, paralectotypes .

Distribution. Australia (Marshall 1983; Wilson 1994; Higo et al. 1999; Chang & Wu 2005; Lee et al. 2018; Chan & Lau 2020), China (Lee et al. 2018), China Sea (Chang & Wu 2005), French Polynesia (Boutet et al. 2020), Hong Kong (Chang & Wu 2005), Japan (Dunker 1860; Dunker 1861; Dunker 1882; Tryon 1887; Paetel 1888; Pilsbry 1895; Kuroda & Habe 1952; Higo et al. 1999; Okutani 2000; Chang & Wu 2005; Albano & Bakker 2016; Dumrongrojwattana et al. 2016; Okutani 2017; Lee et al. 2018; Chan & Lau 2020), Korea (Lee & Min 2002; Min et al. 2004; Lee et al. 2018), Mauritius (Viader 1937), New Caledonia (Marshall 1983; Chang & Wu 2005), Philippines (Chang & Wu 2005), Singapore (Chan & Lau 2020), Solomon Islands (Marshall 1983), South Korea (Kill et al. 2013), Taiwan (Chang 2006c; Dumrongrojwattana et al. 2016), Thailand (Dumrongrojwattana et al. 2016; Bu-on & Dumrongrojwattana 2020; Dumrongrojwattana & Tanamai 2020; Wells et al. 2021).

Remarks. Lectotype designation by Marshall (1983). Marshall (1983) considered Mastonia limosa Jousseaume, 1884, Triphora nocturna Hedley, 1903, Triphora hungerfordi G.B. Sowerby III, 1914 and Mesophora bowenensis Laseron 1958 junior synonyms of Triforis fusca Dunker, 1860 .