Triphoris (Mastonia) hilaris Hinds, 1843b: 21.
Triforis hilaris Hinds, 1843 — Tryon 1887: 190, pl. 39, fig. 63.
Trifora hilaris Hinds, 1843 — Viader 1937: 43.
Type locality. “Pacific Ocean?”
Type material. Not found in the NHMUK (Albano et al. 2019).
Distribution. Japan (Paetel 1888), Mauritius (Viader 1937), Philippines (Hidalgo 1905; Faustino 1928).