''Scrinium'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

of sea snails,

marine Marine is an adjective meaning of or pertaining to the sea or ocean. Marine or marines may refer to: Ocean * Maritime (disambiguation) * Marine art * Marine biology * Marine debris * Marine habitats * Marine life * Marine pollution Military * ...

gastropod

mollusk Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is es ...

s in the

family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...

Mitromorphidae Mitromorphidae is a monophyletic family of small to medium-sized sea snails, marine gastropod mollusks in the superfamily Conoidea.Bouchet, P. (2011). Mitromorphidae Casey, 1904. In: MolluscaBase (2018). Accessed through: World Register of Marin ...

, in the superfamily

Conoidea Conoidea is a superfamily of predatory sea snails, marine gastropod mollusks within the suborder Hypsogastropoda. This superfamily is a very large group of marine mollusks, estimated at about 340 recent valid genera and subgenera, and consider ...

the

cone snails A cone is a three-dimensional geometric shape that tapers smoothly from a flat base (frequently, though not necessarily, circular) to a point called the apex or vertex. A cone is formed by a set of line segments, half-lines, or lines ...

and their allies.Rosenberg, G.; Bouchet, P. (2012). Scrinium. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=432553 on 2012-06-29

Description

The small shell is oblong and rounded at each end. It contains only a few

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). Whorls in nature File:Photograph and axial plane flo ...

s. The low

protoconch A protoconch (meaning first or earliest or original shell) is an embryonic or larval shell which occurs in some classes of molluscs, e.g., the initial chamber of an ammonite or the larval shell of a gastropod. In older texts it is also calle ...

is dome-shaped. The colour is yellow and brown, uniform or variegated. There is no differentiation of the fasciole area. The

sculpture Sculpture is the branch of the visual arts that operates in three dimensions. Sculpture is the three-dimensional art work which is physically presented in the dimensions of height, width and depth. It is one of the plastic arts. Durable sc ...

consists of obscure radial ribs and faint spiral grooves. The

aperture In optics, an aperture is a hole or an opening through which light travels. More specifically, the aperture and focal length of an optical system determine the cone angle of a bundle of rays that come to a focus in the image plane. An ...

is rather wide and smooth within. The sinus is shallow. The outer

lip The lips are the visible body part at the mouth of many animals, including humans. Lips are soft, movable, and serve as the opening for food intake and in the articulation of sound and speech. Human lips are a tactile sensory organ, and can be ...

is simple. The

siphonal canal The siphonal canal is an anatomical feature of the shells of certain groups of sea snails within the clade Neogastropoda. Some sea marine gastropods have a soft tubular anterior extension of the mantle called a siphon through which water ...

is short and wide, with an everted margin. The

columella Lucius Junius Moderatus Columella (; Arabic: , 4 – ) was a prominent writer on agriculture in the Roman Empire. His ' in twelve volumes has been completely preserved and forms an important source on Roman agriculture, together with the ...

is concave and twisted.

Distribution

The species in this genus occur off Australia and

New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 List of islands of New Zealand, smaller islands. It is the ...

. Fossils have been found off New Zealand, age range: 37.2 to 15.9 Ma.

Species

* † ''

Scrinium blandiatum ''Scrinium blandiatum'' is an extinct species of sea snail, a marine gastropod mollusk in the family Mitromorphidae.MolluscaBase (2018). Scrinium blandiatum (Suter, 1917) †. Accessed through: World Register of Marine Species at: http://www.mar ...

'' (Suter, 1917) * ''

Scrinium brazieri ''Scrinium brazieri'' is a species of sea snail, a marine gastropod mollusk in the family Mitromorphidae.MolluscaBase (2018). Scrinium brazieri (E. A. Smith, 1892). Accessed through: World Register of Marine Species at: http://www.marinespecies. ...

'' (E. A. Smith, 1892) * † ''

Scrinium callimorphum ''Scrinium callimorphum'' is an extinct species of sea snail, a marine gastropod mollusk in the family Mitromorphidae.MolluscaBase (2018). Scrinium callimorphum (Suter, 1917) †. Accessed through: World Register of Marine Species at: http://w ...

'' (Suter, 1917) * † ''

Scrinium finlayi ''Scrinium finlayi'' is an extinct species of sea snail, a marine gastropod mollusk in the family Mitromorphidae.MolluscaBase (2018). Scrinium finlayi Powell, 1942 †. Accessed through: World Register of Marine Species at: http://www.marinespec ...

'' Powell, 1942 * ''

Scrinium furtivum ''Scrinium furtivum'' is a species of sea snail, a marine gastropod mollusk in the family Mitromorphidae.MolluscaBase (2018). Scrinium furtivum Hedley, 1922. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aph ...

'' Hedley, 1922 * ''

Scrinium gatliffi ''Scrinium gatliffi'' is a species of sea snail, a marine gastropod mollusk in the family Mitromorphidae. Description The length of the shell attains 5.25 mm, its diameter 2.25 mm. (Original description) The small, white, solid shell ...

'' (Verco, 1909) Australian Faunal Directory : ''Scrinium gatliff''i
/ref> * ''

Scrinium impendens ''Scrinium impendens'' is a species of sea snail, a marine gastropod mollusk in the family Mitromorphidae.MolluscaBase (2018). Scrinium impendens (Verco, 1909). Accessed through: World Register of Marine Species at: http://www.marinespecies.org/ ...

'' (Verco, 1909) * † ''

Scrinium limbatum ''Scrinium limbatum'' is an extinct species of sea snail, a marine gastropod mollusk in the family Mitromorphidae.MolluscaBase (2018). Scrinium limbatum Maxwell, 1992 †. Accessed through: World Register of Marine Species at: http://www.marines ...

'' Maxwell, 1992 * ''

Scrinium neozelanicum ''Scrinium neozelanicum'' is a species of sea snail, a marine gastropod mollusk in the family Mitromorphidae.MolluscaBase (2018). Scrinium neozelanicum (Suter, 1908). Accessed through: World Register of Marine Species at: http://www.marinespecie ...

'' (Suter, 1908) * † ''

Scrinium ordinatum ''Scrinium ordinatum'' is an extinct species of sea snail, a marine gastropod mollusk in the family Mitromorphidae.MolluscaBase (2018). Scrinium ordinatum (Hutton, 1877) †. Accessed through: World Register of Marine Species at: http://www.mari ...

'' (Hutton, 1877) * † ''

Scrinium stirophorum ''Scrinium stirophorum'' is an extinct species of sea snail, a marine gastropod mollusk in the family Mitromorphidae.MolluscaBase (2018). Scrinium stirophorum Suter, 1917 †. Accessed through: World Register of Marine Species at: http://www.mar ...

'' Suter, 1917 * † ''

Scrinium strongi ''Scrinium strongi'' is an extinct species of sea snail, a marine gastropod mollusk in the family Mitromorphidae.MolluscaBase (2018). Scrinium strongi Marwick, 1931 †. Accessed through: World Register of Marine Species at: http://www.marinespe ...

'' Marwick, 1931 * † ''

Scrinium thomsoni ''Scrinium thomsoni'' is an extinct species of sea snail, a marine gastropod mollusk in the family Mitromorphidae.MolluscaBase (2018). Scrinium thomsoni Powell, 1942 †. Accessed through: World Register of Marine Species at: http://www.marinesp ...

'' Powell, 1942 ; Species brought into synonymy: * ''Scrinium neozelanica'' ic: synonym of ''Scrinium neozelanicum'' (Suter, 1908) * ''Scrinium sandersonae'' Bucknill, 1928: synonym of ''

Neoguraleus sandersonae ''Neoguraleus sandersonae'' is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.Marshall, B. (2016). Neoguraleus sandersonae (Bucknill, 1927). In: MolluscaBase (2017). Accessed through: World Register of Marine Species ...

'' (Bucknill, 1928)

References

* Powell, A.W.B. 1966. ''The molluscan families Speightiidae and Turridae, an evaluation of the valid taxa, both Recent and fossil, with list of characteristic species''. Bulletin of the Auckland Institute and Museum. Auckland, New Zealand 5: 1–184, pls 1–23 * Bouchet P., Kantor Yu.I., Sysoev A. & Puillandre N. (2011) A new operational classification of the Conoidea. Journal of Molluscan Studies 77: 273-308.

External links

{{Taxonbar, from=Q7439175 Mitromorphidae Gastropod genera