title: Hypermastus
text: # Hypermastus
  
  Hypermastus is a genus of sea snails, marine gastropod mollusks in the family Eulimidae.
  
  ## Species
  
  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
  