title: Hemifusus
text: # Hemifusus
  
  Hemifusus is a genus of sea snails, marine gastropod molluscs in the family Melongenidae, the crown conches and their allies.
  
  ## Description
  
  The type description of genus Hemifusus by English malacologist William John Swainson reads as follows:
  
     Unequally fusiform, the spire being shorter than aperture; shell ponderous, coronated with compressed spines; and internal and ascending canal at the top of aperture.
  
  ## Species
  
  Species within the genus Hemifusus include:
  
  * Hemifusus alfi Thach, 2021
  * Hemifusus boucheti Thach, 2017
  * † Hemifusus charlieleei Harzhauser, Raven & Landau, 2018
  * Hemifusus colosseus (Lamarck, 1816)
  * Hemifusus crassacauda (Philippi, 1849)
  * Hemifusus hitoshiikedai Thach, 2020
  * Hemifusus kawamurai Kira, 1965
  * Hemifusus schuetti Alf & Thach, 2021
  * Hemifusus treudei Alf & Thach, 2021
  * Hemifusus tuba (Gmelin, 1791)
  * Hemifusus yurikantori Thach, 2017
  
  ### Species brought into synonymy
  
  * Hemifusus crassicaudus (Philippi, 1849) : synonym of Hemifusus crassacauda (Philippi, 1849)
  * Hemifusus elongatus (Lamarck, 1822): synonym of Pugilina elongata (Lamarck, 1822): synonym of Lenifusus elongatus (Lamarck, 1822)
  * Hemifusus ternatanus (Gmelin, 1791): synonym of Brunneifusus ternatanus (Gmelin, 1791)
  * † Hemifusus washingtonianus Weaver, 1912: synonym of † Whitneyella washingtoniana (Weaver, 1912) (original combination)
  * Hemifusus zhangyii Kosuge, 2008: synonym of Pyrula elongata Lamarck, 1822: synonym of Lenifusus elongatus (Lamarck, 1822)
  