# 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)