费拉螺属

费拉螺属（學名：）是一類細小、會呼吸空氣的淡水螺的属，屬於腹足纲扁蜷科。外觀類似笠螺，所以有時稱作淡水笠螺，但在分類上不算是真正的笠螺。

分佈
本物種原來只分佈於北美洲，但近年在香港及太湖的淡水水域都有發現本屬物種的報告。

物種
本屬包括下列各物種：
 培根氏費拉螺 Ferrissia baconi (Bourguignat, 1853)：香港的外來物種。
 Ferrissia beaui (Bourguignat, 1853) - Beau's Stream Limpet
 Ferrissia burnupi (Walker, 1912)
 Ferrissia cawstoni Walker, 1924
 Ferrissia ceylanica Benson, 1864
 Ferrissia chudeaui Germain, 1917
 Ferrissia clifdeni Connolly, 1939
 Ferrissia connollyi (Walker, 1912)
 † Ferrissia crenellata Harzhauser & Neubauer in Harzhauser et al., 2012 
 † Ferrissia deperdita (Desmarest, 1814) 
 † Ferrissia dimici (Brusina, 1902) 
 Ferrissia dohrnianus (Clessin, 1882)
 Ferrissia eburnensis Binder, 1957
 Ferrissia farquhari (Walker, 1924)
 Ferrissia fontinalis (Walker, 1912)
  (Tryon, 1863) - synonyms: Ferrissia clessiniana (Jickeli, 1882), Ferrissia wautieri (Mirolli, 1960) - Fragile Ancylid
  Lanzer, 1991
 † Ferrissia illyrica (Neumayr, 1880) 
 Ferrissia irrorata (Guilding, 1828)
  (Bourguignat, 1866)
 Ferrissia junodi Connolly, 1925
 Ferrissia kavirondica (Mandahl-Barth, 1954)
 Ferrissia lacustris Walker, 1924
 Ferrissia leonensis Connolly, 1928
 Ferrissia lhotelleriei Walker, 1914 - dubious species
  ：hood ancylid
 Ferrissia modesta Crosse, 1880
 Ferrissia natalensis Walker, 1924
  (Suter, 1905)
 † Ferrissia neumayri (Fontannes, 1881) 
 Ferrissia pallaryi Walker, 1914 - dubious species
  (Haldeman) - oblong ancylid or 
 Ferrissia petterdi (Johnston, 1879)
 † Ferrissia pontileviensis (Morgan, 1920)  
 Ferrissia siamensis Brandt, 1974
  ：模式種
 Ferrissia tasmanica  (Woods, 1876)
  (Smith, 1906)
  (Bourguignat, 1862)
 Ferrissia toroensis (Mandahl-Barth, 1954)
 † Ferrissia truci Wautier, 1975 
 Ferrissia verruca (Benson, 1855)
 Ferrissia victoriensis (Walker, 1912)
 Ferrissia viola (Annandale & Prashad, 1921)
  (Pilsbry & Ferriss, 1907)
 † Ferrissia wittmanni (Schlickum, 1964) 
 Ferrissia zambesiensis (Walker, 1912)
 Ferrissia zambiensis Mandahl-Barth, 1968

Many specific names need revision, for example 11 species of Ferrissia in southern Africa.
Species brought into synonymy
 † Ferrissia senckenbergiana (Boettger, 1877): synonym of  † Ferrissia deperdita (Desmarest, 1814) 
 Ferrissia wautieri (Mirolli, 1960): synonym of Ferrissia fragilis (Tryon, 1836)

參考文獻

外部連結