Sinezona

Sinezona is a genus of minute sea snails, marine gastropod mollusks or micromollusks in the family Scissurellidae, the little slit shells.

Description
The shell has turbinate or depressed turbinate form. The anal fissure is closed, forming a foramen in the outer wall of the aperture. The slit fasciole is shorter, not over 1½ whorls in length.

Sinezona is a Scissurella in which the anal slit becomes closed in the adult, and transformed into an oblong perforation like one of the holes of a Haliotis.

Distribution
This marine genus occurs worldwide.

Species
Species in the genus Sinezona include:


 * Sinezona bandeli Marshall, 2002
 * Sinezona beddomei (Petterd, 1884)
 * Sinezona brevis (Hedley, 1904)
 * Sinezona brucei Geiger, 2012
 * Sinezona calumnior Geiger, 2012
 * Sinezona carolarum Geiger & McLean, 2010
 * Sinezona chilensis Geiger, 2012
 * Sinezona cingulata (O.G. Costa, 1861)
 * Sinezona confusa Rolán & Luque, 1994
 * Sinezona costulata Geiger & Sasaki, 2009
 * Sinezona danieldreieri Geiger, 2008
 * Sinezona doliolum Herbert, 1986
 * Sinezona enigmatica Geiger & B.A. Marshall, 2012
 * Sinezona ferriezi (Crosse, 1867)
 * Sinezona finlayi (Laws, 1948)
 * Sinezona garciai Geiger, 2006
 * † Sinezona geigeri Landau, Van Dingenen & Ceulemans, 2017
 * Sinezona globosa Geiger, 2006
 * † Sinezona haliotimorpha Lozouet, 1998
 * Sinezona hawaiiensis Geiger & McLean, 2010
 * Sinezona insignis ( E.A. Smith, 1910)
 * Sinezona insularis Simone, 2009
 * Sinezona iota (Finlay, 1926)
 * Sinezona kayae Geiger & McLean, 2010
 * † Sinezona kondoi
 * † Sinezona koruahina (Laws, 1936)
 * Sinezona laqueus (Finlay, 1926)
 * Sinezona levigata (Iredale, 1908)
 * Sinezona macleani Geiger, 2006
 * Sinezona marrowi Geiger, 2012
 * Sinezona mechanica Geiger & B.A. Marshall, 2012
 * Sinezona milleri Geiger & Sasaki, 2009
 * Sinezona mouchezi (Vélain, 1876)
 * Sinezona norfolkensis Geiger, 2012
 * Sinezona pacifica (Oliver, 1915)
 * Sinezona pauperata (Powell, 1933)
 * Sinezona platyspira Geiger & B.A. Marshall, 2012
 * Sinezona plicata (Hedley, 1899)
 * † Sinezona praecedens Lozouet, 1998
 * Sinezona rimuloides (Carpenter, 1865) - rim scissurelle
 * Sinezona semicostata Burnay & Rolán, 1990
 * Sinezona singeri Geiger, 2006
 * Sinezona singulata (O. G Costa)
 * Sinezona subantarctica (Hedley, 1916)
 * † Sinezona tertia (Laws, 1940)
 * Sinezona wanganellica Geiger & B.A. Marshall, 2012
 * Sinezona wileyi Geiger, 2008
 * Sinezona zimmeri Geiger, 2003


 * Nomine dubia:
 * Sinezona concinna (G. B. Sowerby I, 1831)
 * Sinezona miranda (A. Adams, 1862)
 * Sinezona modesta (A. Adams, 1862)
 * Sinezona paumotuensis (Garrett, 1872)
 * Species brought into synonymy:
 * Sinezona armillata Yaron, 1983 : synonym of Sukashitrochus armillatus (Yaron, 1983)
 * Sinezona atkinsoni Tenison-Woods, J.E., 1877 : synonym of Sukashitrochus atkinsoni (Tenison Woods, 1877)
 * Sinezona brasiliensis Mattar, 1987 : synonym of Satondella brasiliensis ( Mattar, 1987)
 * Sinezona carinata (Adams, A., 1862) : synonym of Sukashitrochus carinatus (A. Adams, 1862)
 * Sinezona crossei (Folin, L. de, 1869) : synonym of Sinezona cingulata (O. G. Costa, 1861)
 * Sinezona fayalensis (Dautzenberg, 1889) : synonym of Sinezona cingulata (O. G. Costa, 1861)
 * Sinezona lobini Burnay & Rolán, 1990 : synonym of Scissurella lobini (Burnay & Rolan, 1990)
 * Sinezona morleti (Crosse, 1880) : synonym of Sukashitrochus morleti (Crosse, 1880)
 * Sinezona lyallensis (Finlay, 1927) : synonym of Sukashitrochus lyallensis (Finlay, 1926)
 * Sinezona padangensis (Thiele, 1912) : synonym of Sinezona ferriezi (Crosse, 1867)
 * Sinezona pulchra (Petterd, 1884) : synonym of Sukashitrochus pulcher (Petterd, 1884)
 * Sinezona redferni Rolán, 1996 : synonym of Scissurella redferni (Rolán, 1996)
 * Sinezona tricarinata Yaron, 1983 : synonym of Sukashitrochus tricarinatus (Yaron, 1983)