Species within this genus include the following: •
Hypermastus acutus (G. B. Sowerby I, 1834) •
Hypermastus araeosomae (Habe, 1992) •
Hypermastus auritae (Warén, 1991) •
Hypermastus boschorum (Warén, 1991) •
Hypermastus bulbulus (Murdoch & Suter, 1906) •
Hypermastus casta (
A. Adams, 1861) •
Hypermastus colmani (Warén, 1991) •
Hypermastus coxi (
Pilsbry, 1899) •
Hypermastus cylindricus (
Sowerby III, 1900) •
Hypermastus echinocardiophilus (Habe, 1976) •
Hypermastus echinodisci (Warén, 1980) •
Hypermastus epeterion (Melvill, 1889) •
Hypermastus epiphanes (Melvill, 1897) •
Hypermastus georgiregis (Cotton & Godfrey, 1932) •
Hypermastus indistinctus (Thiele, 1925) •
Hypermastus kilburni (Warén, 1991) •
Hypermastus lacteus (
A. Adams, 1864) •
Hypermastus mareticola (Warén & Norris, 1994) •
Hypermastus minor (Warén, 1991) •
Hypermastus mucronatus (
Sowerby II, 1866) •
Hypermastus obliquistomum (Warén, 1991) •
Hypermastus orstomi (Warén, 1994) •
Hypermastus peronellicola (Kuroda & Habe, 1950) •
Hypermastus philippianus (Dunker, 1860) •
Hypermastus placentae (Warén & Crossland, 1991) •
Hypermastus productus (Sowerby III, 1894) •
Hypermastus pusillus (
Sowerby I, 1834) •
Hypermastus randolphi (Vanatta, 1900) •
Hypermastus roemerianus Matsuda, Uyeno & Nagasawa, 2013 •
Hypermastus rosa (Willett, 1944) •
Hypermastus ryukyeunsis (Matsuda, Uyeno & Nagasawa, 2010) •
Hypermastus sauliae (Warén, 1980) •
Hypermastus serratus (Warén, 1991) •
Hypermastus subula (
A. Adams, 1864) •
Hypermastus tenuissimae (Warén, 1991) •
Hypermastus tokunagai (Yokoyama, 1922) •
Hypermastus williamsi (Cotton & Godfrey, 1932) ;Species brought into synonymy: •
Hypermastus bountyensis (Powell, 1933): synonym of
Pelseneeria bountyensis (Powell, 1933) •
Hypermastus bulbula (R. Murdoch & Suter, 1906): synonym of
Hypermastus bulbulus (Murdoch & Suter, 1906) •
Hypermastus cookeanus (
Bartsch, 1917): synonym of
Stilapex cookeanus (Bartsch, 1917) •
Hypermastus dunkerianus (Pilsbry, 1901): synonym of
Hypermastus philippiana (Dunker, 1860) •
Hypermastus lacteus (A. Adams, 1864): synonym of
Melanella tanabensis Takano, Tanaka & Kano, 2019 •
Hypermastus roemeriana Matsuda, Uyeno & Nagasawa, 2013 a: synonym of
Hypermastus roemerianus Matsuda, Uyeno & Nagasawa, 2013 ==References==