Cirsonella

Cirsonella is a genus of small sea snails, marine gastropod molluscs in the family Skeneidae.^[1]

Cirsonella
Shell of † Cirsonella funata (holotype at MNHN, Paris)
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Vetigastropoda
Order:	Trochida
Superfamily:	Trochoidea
Family:	Skeneidae
Genus:	Cirsonella Angas, 1877
Type species
Cirsonella australis Angas, 1877
Species
See text
Synonyms[1]
Porcupinia Cossmann, 1900 Tharsiella Bush, 1897 Tharsis Jeffreys, 1883 (preoccupied by Tharsis Giebel, 1847 (Pisces))

Description

(Original description by G. Angas) The minute, smooth shell is globosely turbinate. It is narrowly umbilicated. The aperture is circular. The continuous peristome is slightly thickened.^[2]

Species

Species within the genus Cirsonella include:

• † Cirsonella aedicula Laws, 1936
• Cirsonella africana (Bartsch, 1915)
• † Cirsonella amplector Laws, 1944
• Cirsonella ateles (Dautzenberg & H. Fischer, 1896)
• Cirsonella carinata (Hedley, 1903)
• † Cirsonella congrua (Laws, 1941)
• Cirsonella consobrina Powell, 1930
• Cirsonella cubitalis (Hedley, 1907)
• Cirsonella densilirata Suter, 1908
• Cirsonella extrema Thiele, 1912
• Cirsonella floridensis (Dall, 1927)
• † Cirsonella funata Lozouet, 1998
• Cirsonella gaudryi (Dautzenberg & Fischer H., 1896)
• Cirsonella georgiana (Dall, 1927)
• Cirsonella globosa (Pelseneer, 1903)
• Cirsonella kerguelensis Thiele, 1912
• Cirsonella lata (Laseron, 1954)
• Cirsonella laxa Powell, 1937
• Cirsonella maoria Powell, 1937
• Cirsonella margaritiformis (Dall, 1927)
• Cirsonella microscopia (Gatliff & Gabriel, 1910)
• Cirsonella ovata Hedley, 1899
• Cirsonella paradoxa Powell, 1937
• Cirsonella parvula Powell, 1926
• Cirsonella pisiformis Powell, 1937
• † Cirsonella proava (Marwick, 1931)
• Cirsonella propelaxa Dell, 1956
• Cirsonella reflecta Laseron, 1954
• Cirsonella romettensis (Granata-Grillo, 1877)
• Cirsonella variecostata Powell, 1940
• Cirsonella waikukuensis Powell, 1937
• † Cirsonella waimamakuica Laws, 1948
• Cirsonella weldii (Tenison-Woods, 1877)
• † Cirsonella zeornata Laws, 1948

Species brought into synonymy

• Cirsonella accelerans C. A. Fleming, 1948: synonym of Cirsonella variecostata Powell, 1940
• Cirsonella australis Angas, 1877: synonym of Cirsonella weldii (Tenison-Woods, 1877)
• Cirsonella granum Murdoch and Suter, 1906: synonym of Lissotesta granum (Murdoch & Suter, 1906)
• Cirsonella kerguelenensis [sic]: synonym of Cirsonella kerguelensis Thiele, 1912
• Cirsonella naticoides (Hedley, 1907): synonym of Cirsonella weldii (Tenison Woods, 1877)
• Cirsonella neozelanica Murdoch, 1899: synonym of Suterilla neozelanica (Murdoch, 1899)
• Cirsonella perplexa Laseron, 1954: synonym of Cirsonella reflecta Laseron, 1954
• Cirsonella simplex Powell, 1937: synonym of Acremodontina simplex (Powell, 1937)
• Cirsonella translucida May, 1915: synonym of Acremodontina translucida (May, 1915)