title: Zeidorinae
text: # Zeidorinae
  
  The Zeidorinae, common name keyhole limpets and slit limpets, is a taxonomic subfamily of limpet-like sea snails, marine gastropod molluscs in the family Fissurellidae, the keyhole limpets and slit limpets.
  
  ## Genera
  
  * Cornisepta McLean & Geiger, 1998
  * Hemimarginula McLean, 2011
  * Hemitoma Swainson, 1840
  * Montfortia Récluz, 1843
  * Montfortista Iredale, 1929
  * Montfortulana Habe, 1961
  * Octomarginula McLean, 2011
  * Profundisepta McLean & Geiger, 1998
  * Puncturella R. T. Lowe, 1827
  * Zeidora A. Adams, 1860
  
  ### Genera brought into synonymy
  
  * Cemoria Risso, 1826: synonym of Puncturella R. T. Lowe, 1827
  * Cranopsis A. Adams, 1860: synonym of Puncturella R. T. Lowe, 1827
  * †Crepiemarginula Seguenza, 1880 : synonym of Zeidora A. Adams, 1860
  * Legrandia C. E. Beddome, 1883: synonym of Zeidora A. Adams, 1860 (invalid: junior homonym of Legrandia Hanley, 1872)
  * Nesta H. Adams, 1870: synonym of Zeidora A. Adams, 1860
  * Sipho T. Brown, 1827: synonym of Puncturella R. T. Lowe, 1827
  * Siphonella Issel, 1869: synonym of Montfortista Iredale, 1929 (Invalid: junior homonym of Siphonella Hagenow, 1851)
  * Subemarginula Gray, 1847: synonym of Hemitoma Swainson, 1840
  * Zidora P. Fischer, 1885: synonym of Zeidora A. Adams, 1860 (invalid: unjustified emendation of Zeidora A. Adams, 1860)
  