''Cronia'' 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 nom ...

of sea snails, marine 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 e ...

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 ...

Muricidae Muricidae is a large and varied taxonomic family of small to large predatory sea snails, marine gastropod mollusks, commonly known as murex snails or rock snails. With about 1,600 living species, the Muricidae represent almost 10% of the Neoga ...

, the murex snails or rock snails.

Description

The shell is ovate. The

spire A spire is a tall, slender, pointed structure on top of a roof of a building or tower, especially at the summit of church steeples. A spire may have a square, circular, or polygonal plan, with a roughly conical or pyramidal shape. Spires a ...

is acuminated. 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 moderate. The inner

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 callous at the upper part. 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 wo ...

is straight and simple anteriorly.

Species

Species within the genus ''Cronia'' include: * '' Cronia amygdala'' (Kiener, 1835) * '' Cronia aurantiaca'' (Hombron & Jacquinot, 1853) * '' Cronia avellana'' (Reeve, 1846) * † '' Cronia tengawaica'' Laws, 1933 ;Species inquirendum: * '' Cronia obockensis'' (Jousseaume, 1888) ;Species brought into synonymy: * ''Cronia amygdata'' ic synonym of ''Cronia amygdala'' (Kiener, 1835) (misspelling) * ''Cronia avenacea'' (Lesson, 1842): synonym of '' Usilla avenacea'' (Lesson, 1842) * ''Cronia contracta'' (Reeve, 1846): synonym of '' Ergalatax contracta'' (Reeve, 1846) * ''Cronia coronata'' (A. Adams, 1853): synonym of '' Pinaxia coronata'' A. Adams, 1853 * ''Cronia crassulnata'' (Hedley, 1915): synonym of '' Ergalatax crassulnata'' (Hedley, 1915) * ''Cronia fiscella'' (Gmelin, 1791): synonym of ''Muricodrupa fiscellum'' (Gmelin, 1791): synonym of '' Murichorda fiscellum'' (Gmelin, 1791) * ''Cronia heptagonalis'' (Reeve, 1846): synonym of '' Ergalatax heptagonalis'' (Reeve, 1846) (synonym) * ''Cronia iostoma'' (A. Adams, 1853): synonym of ''Murex iostoma'' A. Adams, 1853: synonym of '' Spinidrupa euracantha'' (A. Adams, 1853) (synonym) * ''Cronia konkanensis'' (Melvill, 1893): synonym of '' Semiricinula konkanensis'' (Melvill, 1893) * ''Cronia latiaxidea'' (G. B. Sowerby III, 1894): synonym of ''

Lataxiena fimbriata ''Lataxiena fimbriata'' is a species of sea snail, a marine gastropod mollusc in the family Muricidae, the murex snails or rock snails. Description Distribution The type species was found in the Makassar Strait Makassar Strait is a str ...

'' (Hinds, 1844) (synonym) * ''Cronia margariticola'' (Broderip in Broderip & Sowerby, 1833): synonym of '' Drupella margariticola'' (Broderip, 1833) * ''Cronia marginatra'' (Blainville, 1832): synonym of '' Neothais marginatra'' (Blainville, 1832) * ''Cronia martensi'' (Dall, 1923): synonym of '' Ergalatax junionae'' Houart, 2008 * ''Cronia muricina'' (Blainville, 1832): synonym of '' Semiricinula muricina'' (Blainville, 1832) * ''Cronia ochrostoma'' (Blainville, 1832): synonym of '' Pascula ochrostoma'' (Blainville, 1832) * ''Cronia ozenneana'' (Crosse, 1861): synonym of '' Pascula ozenneana'' (Crosse, 1861) * ''Cronia pseudamygdala'' (Hedley, 1903): synonym of ''Cronia aurantiaca'' (Hombron & Jacquinot, 1848) * ''Cronia spinosa'' (Adams H. & A., 1853): synonym of '' Morula spinosa'' (H. Adams & A. Adams, 1853) * ''Cronia subnodulosa'' (Melvill, 1893): synonym of '' Orania subnodulosa'' (Melvill, 1893) * ''Cronia tosana'' (Pilsbry, 1904): synonym of '' Usilla tosana'' (Pilsbry, 1904)

References

External links

Adams H. & Adams A. (1853-1858). The genera of Recent Mollusca; arranged according to their organization. London, van Voorst. Vol. 1: xl + 484 pp.; vol. 2: 661 pp.; vol. 3: 138 pls

Claremont M., Houart R., Williams S.T. & Reid D.G. (2013). A molecular phylogenetic framework for the Ergalataxinae (Neogastropoda: Muricidae). Journal of Molluscan Studies. 79(1): 19-29
Ergalataxinae {{Ergalataxinae-stub