Triforis (Iniforis) formosula Hervier, 1898
Triforis (Iniforis) formosula Hervier, 1898: 251 .
Triphora formosula Hervier, 1898 — Kuroda 1941: 92.
Triphora (Iniforis) formosula Hervier, 1898 — Kosuge 1961a: 311, pl. 19, fig. 9.
Iniforis formosula (Hervier, 1898) — Habe & Kosuge 1966: 109, pl. 41, fig. 49.
Iniforis formosulus (Hervier, 1898) — Kay & Johnson 1987: 115.
Triforis formosula Hervier, 1898 — Héros et al. 2007: 220.
Type locality. New Caledonia, Lifou .
Type material. MNHN-IM-2000-1245, syntype.
Distribution. China Sea (Zongguo & Mao 2012), French Polynesia (Boutet et al. 2020), Guam (Smith 2003), Japan (Kuroda & Habe 1952; Kosuge 1961a; Higo et al. 1999; Okutani 2000; Chang & Wu 2005; Dumrongrojwattana et al. 2016; Okutani 2017), Marshall Islands (Kay & Johnson 1987; Kosuge 1990), New Caledonia (Hervier 1898; Hervier 1899; Kosuge 1961a; Chang & Wu 2005; Héros et al. 2007), Niue Island (Cernohorsky 1970), Taiwan (Kuroda 1941; Chang & Wu 2005; Chang 2006a; Chen et al. 2012; Dumrongrojwattana et al. 2016), Thailand (Dumrongrojwattana et al. 2016; Dumrongrojwattana & Tanamai 2020; Wells et al. 2021).