''Sinezona'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

of minute

sea snail Sea snails are slow-moving marine (ocean), marine gastropod Mollusca, molluscs, usually with visible external shells, such as whelk or abalone. They share the Taxonomic classification, taxonomic class Gastropoda with slugs, which are distinguishe ...

s, marine

gastropod Gastropods (), commonly known as slugs and snails, belong to a large Taxonomy (biology), taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, freshwater, and fro ...

mollusk Mollusca is a phylum of protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant species of molluscs are recognized, making it the second-largest animal phylum after Arthropoda. The ...

s or

micromollusk A micromollusc is a shelled mollusc which is extremely small, even at full adult size. The word is usually, but not exclusively, applied to marine molluscs, although in addition, numerous species of land snails and freshwater molluscs also ...

s in the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Scissurellidae Scissurellidae, sometimes known by the common name little slit snails, are a Taxonomy (biology), taxonomic family (biology), family of minute sea snails, marine (ocean), marine gastropod molluscs or micromolluscs in the clade Vetigastropoda (acc ...

, the little slit shells.WoRMS : Sinezona; accessed : 21 October 2010
/ref>

Description

The shell has turbinate or depressed turbinate form. The anal fissure is closed, forming a foramen in the outer wall of the

aperture In optics, the aperture of an optical system (including a system consisting of a single lens) is the hole or opening that primarily limits light propagated through the system. More specifically, the entrance pupil as the front side image o ...

. The slit fasciole is shorter, not over 1½

whorl A whorl ( or ) is an individual circle, oval, volution or equivalent in a whorled pattern, which consists of a spiral or multiple concentric objects (including circles, ovals and arcs). In nature File:Photograph and axial plane floral diagra ...

s in length. ''Sinezona'' is a ''

Scissurella ''Scissurella'' is a genus of minute sea snails, marine gastropod molluscs in the family Scissurellidae, the small slit snails. Species According to the World Register of Marine Species (WoRMS), the following species with valid names are includ ...

'' in which the anal slit becomes closed in the adult, and transformed into an oblong perforation like one of the holes of a ''

Haliotis ''Haliotis'', common name abalone, is the only genus in the family Haliotidae. This genus once contained six subgenera. These subgenera have become alternate representations of ''Haliotis''. The genus consists of small to very large, edible, ...

''.

Distribution

This marine genus occurs worldwide.

Species

Species in the genus ''Sinezona'' include: * '' Sinezona bandeli'' Marshall, 2002 * '' Sinezona beddomei'' (Petterd, 1884) * ''

Sinezona brevis ''Sinezona brevis'' is a species of small sea snail, a marine gastropod mollusc in the family Scissurellidae.Bouchet, P. (2013). Sinezona brevis (Hedley, 1904). Accessed through: World Register of Marine Species at http://www.marinespecies.org/ap ...

'' (Hedley, 1904) * '' Sinezona brucei'' Geiger, 2012 * '' Sinezona calumnior'' Geiger, 2012 * '' Sinezona carolarum'' Geiger & McLean, 2010 * ''

Sinezona chilensis ''Sinezona chilensis'' is a species of small sea snail, a marine gastropod mollusc or micromollusc in the family Scissurellidae, the little slit snails.Bouchet, P. (2013). ''Sinezona chilensis'' Geiger, 2012. Accessed through: World Register of ...

'' Geiger, 2012 * ''

Sinezona cingulata ''Sinezona cingulata'' is a species of small sea snail, a marine gastropod mollusk in the family Scissurellidae. Description The size of the extremely minute shell varies between 0.6 mm and 1 mm. The white, fragile and thin shell has ...

'' (O.G. Costa, 1861) * ''

Sinezona confusa ''Sinezona confusa'' is a species of small sea snail, a marine gastropod mollusk or micromollusk in the family Scissurellidae. Description The shell reaches a height of 1.5 mm. Distribution This species occurs in the Gulf of Mexico, the C ...

'' Rolán & Luque, 1994 * ''

Sinezona costulata ''Sinezona costulata'' is a species of small sea snail, a marine gastropod mollusk or micromollusk in the family Scissurellidae Scissurellidae, sometimes known by the common name little slit snails, are a Taxonomy (biology), taxonomic family ...

'' Geiger & Sasaki, 2009 * ''

Sinezona danieldreieri ''Sinezona danieldreieri'' is a species of small sea snail, a marine gastropod mollusk or micromollusk in the family Scissurellidae, the little slit shells. Description Distribution This marine species occurs off the Austral Islands The Au ...

'' Geiger, 2008 * ''

Sinezona doliolum ''Sinezona doliolum'' is a species of small sea snail, a marine gastropod mollusk or micromollusk in the family Scissurellidae, the little slit snails.Bouchet, P. (2013). ''Sinezona doliolum'' Herbert, 1986. Accessed through: World Register of ...

'' Herbert, 1986 * ''

Sinezona enigmatica ''Sinezona enigmatica'' is a species of small sea snail, a marine gastropod mollusc or micromollusc in the family Scissurellidae, the little slit snails.Bouchet, P. (2012). ''Sinezona enigmatica'' Geiger & B.A. Marshall, 2012. Accessed through: ...

'' Geiger & B.A. Marshall, 2012 * ''

Sinezona ferriezi ''Sinezona ferriezi'' is a species of small sea snail, a marine gastropod mollusk or micromollusk in the family Scissurellidae, the little slit snails.Bouchet, P. (2013). ''Sinezona ferriezi'' (Crosse, 1867). Accessed through: World Register of ...

'' (Crosse, 1867) * ''

Sinezona finlayi ''Sinezona finlayi'' is a species of small sea snail, a marine gastropod mollusk or micromollusk in the family Scissurellidae, the little slit snails.Bouchet, P. (2013). ''Sinezona finlayi'' (Laws, 1948). Accessed through: World Register of Mar ...

'' (Laws, 1948) * ''

Sinezona garciai ''Sinezona garciai'' is a species of small sea snail, a marine gastropod mollusk or micromollusk in the family Scissurellidae, the little slit shells. Description Distribution This species occurs in the Caribbean Sea The Caribbean Sea is a ...

'' Geiger, 2006 * † '' Sinezona geigeri'' Landau, Van Dingenen & Ceulemans, 2017 * ''

Sinezona globosa ''Sinezona globosa'' is a species of small sea snail, a marine gastropod mollusk or micromollusk in the family Scissurellidae, the little slit shells. Description The length of the shell attains 3.1 mm. Distribution This marine species occurs ...

'' Geiger, 2006 * † '' Sinezona haliotimorpha'' Lozouet, 1998 * '' Sinezona hawaiiensis'' Geiger & McLean, 2010 * ''

Sinezona insignis ''Sinezona insignis'' is a species of small sea snail, a marine gastropod mollusk or micromollusk in the family Scissurellidae, the little slit snails.Bouchet, P. (2013). ''Sinezona insignis'' (E. A. Smith, 1910). Accessed through: World Regist ...

'' (E.A. Smith, 1910) * ''

Sinezona insularis ''Sinezona insularis'' is a species of small sea snail, a marine gastropod mollusk or micromollusk in the family Scissurellidae Scissurellidae, sometimes known by the common name little slit snails, are a Taxonomy (biology), taxonomic family ...

'' Simone, 2009 * '' Sinezona iota'' (Finlay, 1926) * '' Sinezona kayae'' Geiger & McLean, 2010Geiger D. L. & McLean J. H. (10 February 2010) "New species and records of

and

Anatomidae Anatomidae is a family of small sea snails, marine gastropod mollusks in the clade Vetigastropoda Vetigastropoda is a major taxonomic group of sea snails, marine gastropod mollusks that form a very ancient lineage. Taxonomically the Vetig ...

from the Americas (Mollusca: Gastropoda: Vetigastropoda)". ''Zootaxa'' 2356: 1-35, 24 plates
preview
* † ''

Sinezona kondoi ''Sinezona'' is a genus of minute sea snails, marine (ocean), marine gastropod mollusks or micromollusks in the family (biology), family Scissurellidae, the little slit shells. Description The shell has turbinate or depressed turbinate form. Th ...

'' * † '' 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 ''Sinezona milleri'' is a species of small sea snail, a marine gastropod mollusk or micromollusk in the family Scissurellidae Scissurellidae, sometimes known by the common name little slit snails, are a Taxonomy (biology), taxonomic family (b ...

'' Geiger & Sasaki, 2009 * '' Sinezona mouchezi'' (Vélain, 1876) * '' Sinezona norfolkensis'' Geiger, 2012 * '' Sinezona pacifica'' (Oliver, 1915) * '' Sinezona pauperata'' ( Powell, 1933) * ''

Sinezona platyspira ''Sinezona platyspira'' is a species of small sea snail, a marine gastropod mollusc or micromollusc in the family Scissurellidae, the little slit snails.Bouchet, P. (2012). ''Sinezona platyspira''. Accessed through: World Register of Marine Spec ...

'' 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 ''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 ...

'' (Hedley, 1916) * † '' Sinezona tertia'' (Laws, 1940) * '' Sinezona wanganellica'' Geiger & B.A. Marshall, 2012 * '' Sinezona wileyi'' Geiger, 2008 * ''

Sinezona zimmeri ''Sinezona zimmeri'' is a species of small sea snail, a marine gastropod mollusk or micromollusk in the family Scissurellidae, the little slit shells. Description Distribution This species occurs in the Pacific Ocean off Easter Island ...

'' 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 ''

'' (O. G. Costa, 1861) * ''Sinezona fayalensis'' (Dautzenberg, 1889): synonym of ''

'' (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 ''

'' (Crosse, 1867) * ''Sinezona pulchra'' (Petterd, 1884):Molluscs of Tasmania: ''Sinezona pulchra''
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)

References

* Geiger D.L. (2003). ''Phylogenetic assessment of characters proposed for the generic classification of Recent Scissurellidae (Gastropoda: Vetigastropoda) with a description of one new genus and six new species frop Easter Island and Australia''. Molluscan Research 23:21-83 * Geiger D.L. (2012) ''Monograph of the little slit shells. Volume 1. Introduction, Scissurellidae. pp. 1-728. Volume 2. Anatomidae, Larocheidae, Depressizonidae, Sutilizonidae, Temnocinclidae''. pp. 729–1291. Santa Barbara Museum of Natural History Monographs Number 7

External links

DiscoverLife

ZipCodeZoo
{{Taxonbar, from=Q7522454 Scissurellidae Extant Miocene first appearances Taxa named by Harold John Finlay