Mastonia obesula Jousseaume, 1884
Mastonia obesula Jousseaume, 1884: 255, pl. 4, fig. 17.
Triforis obesula (Jousseaume, 1884) — Tryon 1887: 185, pl. 38, fig. 27.
Triforis obesulus (Jousseaume, 1884) — Paetel 1888: 349.
Notosinister obesulus (Jousseaume, 1884) — Kosuge 1962b: 88, pl. 9, fig. 7.
Obesula obesula (Jousseaume, 1884) in Marshall 1983: fig. 26h–j.
Type locality. New Caledonia .
Type material. MNHN-IM-2000-1614, syntypes.
Distribution. Australia (Higo et al. 1999), Japan (Kosuge 1962b; Kosuge 1963a; Higo et al. 1999; Okutani 2000; Okutani 2017), New Caledonia (Jousseaume 1884; Tryon 1887; Paetel 1888; Hedley 1899; Hervier 1899; Kosuge 1962b; Kosuge 1963a), New Guinea (Hedley 1899), Philippines (Higo et al. 1999), Solomon Islands (Marshall 1983), Tuvalu (Hedley 1899).