''Aegista'' 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 air-breathing

land snail A land snail is any of the numerous species of snail that live on land, as opposed to the sea snails and freshwater snails. ''Land snail'' is the common name for terrestrial molluscs, terrestrial gastropod mollusks that have gastropod shell, shel ...

terrestrial Terrestrial refers to things related to land or the planet Earth, as opposed to extraterrestrial. Terrestrial may also refer to: * Terrestrial animal, an animal that lives on land opposed to living in water, or sometimes an animal that lives on o ...

pulmonate Pulmonata or pulmonates is an informal group (previously an order, and before that, a subclass) of snails and slugs characterized by the ability to breathe air, by virtue of having a pallial lung instead of a gill, or gills. The group inclu ...

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 in the family

Camaenidae Camaenidae is a Family (biology), family of air-breathing land snails, terrestrial molluscs, terrestrial pulmonate gastropod mollusks in the superfamily Helicoidea, the typical snails and their allies. This is one of the most diverse families i ...

.MolluscaBase eds. (2020). MolluscaBase. Aegista Albers, 1850. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=874976 on 7 May 2020

Anatomy

Species within this genus create and use

love darts A love dart (also known as a gypsobelum, shooting darts, or just as darts) is a sharp, calcium carbonate, calcareous or chitinous Dart (missile), dart which some hermaphroditic land snails and slugs create. Love darts are both formed and stor ...

as part of their mating behavior.

Description

The thin, conical or lenticular shell is depressed and widely umbilicated. The shell is uniform corneous. The shell is strongly sculptured. The periphery is rounded, or obtusely angulated. The rounded

body whorl The body whorl is part of the morphology (biology), morphology of the gastropod shell, shell in those gastropod mollusks that possess a coiled shell. The term is also sometimes used in a similar way to describe the shell of a cephalopod mollusk ...

is descending in front. The

peristome Peristome (from the Greek language, Greek ''peri'', meaning 'around' or 'about', and ''stoma'', 'mouth') is an anatomical feature that surrounds an opening to an organ or structure. Some plants, fungi, and shelled gastropods have peristomes. In mo ...

is slightly expanded, a little thickened within.G.W. Tryon, Manual of conchology. Second series: Pulmonata vol. II
/ref> In the past, this genus has often been used interchangeably with '' Plectotropis'' Martens, 1860.

Distribution

This genus of snails is distributed throughout from

Southeast Asia Southeast Asia is the geographical United Nations geoscheme for Asia#South-eastern Asia, southeastern region of Asia, consisting of the regions that are situated south of China, east of the Indian subcontinent, and northwest of the Mainland Au ...

to temperate

East Asia East Asia is a geocultural region of Asia. It includes China, Japan, Mongolia, North Korea, South Korea, and Taiwan, plus two special administrative regions of China, Hong Kong and Macau. The economies of Economy of China, China, Economy of Ja ...

Species

Species within the genus ''Aegista'' include: * '' Aegista accrescens'' (Heude, 1882) * '' Aegista araneaetela'' (P.M. Heude, 1885) (synonym: ''Helix araneaetela'' Heude, 1885) * '' Aegista aubryana'' (Heude, 1882) * '' Aegista awajiensis'' (Gude, 1900) * '' Aegista baphica'' (Mabille, 1888) * '' Aegista caerulea'' Kuroda & T. Habe, 1960 * '' Aegista calcicola'' (Masuda & Habe, 1989) * '' Aegista carinata'' (Gude, 1901) * '' Aegista catostoma'' (W. T. Blanford, 1869) * ''

Aegista celsa ''Aegista celsa'' is a species of air-breathing land snails, a terrestrial pulmonate gastropod in the family Camaenidae.MolluscaBase eds. (2024). MolluscaBase. (Pilsbry & Y. Hirase, 1908). Accessed through: World Register of Marine Species at: h ...

'' (Pilsbry & Y. Hirase, 1908) * '' Aegista chejuensis'' (Pilsbry & Hirase, 1908) * '' Aegista chinensis'' (R. A. Philippi, 1845) * '' Aegista chosenica'' (Pilsbry, 1927) * '' Aegista congener'' Preston, 1914 * '' Aegista coudeini'' (Bavay & Dautzenberg, 1900) * '' Aegista crassiuscula'' (E. A. Smith, 1896) * '' Aegista diversa'' Kuroda & Miyanaga, 1936 * '' Aegista diversifamilia'' C.-W. Huang, Y.-C. Lee, S.-M. Lin & W.-L. Wu, 2014 * '' Aegista fausta'' Kuroda & Habe, 1951 * '' Aegista fauveli'' (Bavay & Dautzenberg, 1900) * '' Aegista friedeliana'' (E. von Martens, 1864) * '' Aegista fulvicans'' (H. Adams, 1866) * '' Aegista furtiva'' (Heude, 1885) * '' Aegista gitaena'' (Bavay & Dautzenberg, 1908) * '' Aegista gottschei'' (Möllendorff, 1887) * '' Aegista granti'' (L. Pfeiffer, 1865) * '' Aegista hachijoensis'' (Pilsbry, 1902) * '' Aegista hakusanensis'' M. Azuma & Y. Azuma, 1982 * '' Aegista hebes'' (Pilsbry & Hirase, 1905) * '' Aegista herpestes'' (P.M. Heude, 1885) * '' Aegista hiroshifukudai'' Hirano, Kameda & Chiba, 2016 * '' Aegista huberorum'' Thach, 2023 * '' Aegista hupeana'' (Gredler, 1886) * '' Aegista impexa'' (Pilsbry & Hirase, 1905) * '' Aegista inrinensis'' (Pilsbry & Hirase, 1905) * '' Aegista intonsa'' (Pilsbry & Y. Hirase, 1902) * '' Aegista kanmuriyamensis'' M. Azuma & Y. Azuma, 1982 * '' Aegista kantori'' Thach & F. Huber, 2021 * '' Aegista kobensis'' (Schmacker & O. Boettger, 1890) (accepted > unreplaced junior homonym, based on unavailable original name; ''gotoensis'' appears to be the earliest available name) * '' Aegista kunimiensis'' M. Azuma & Y. Azuma, 1982 * '' Aegista laoyelingensis'' Zhang, 1993 * '' Aegista lasia'' (Pilsbry & Y. Hirase, 1909) * '' Aegista laurentii'' (Gredler, 1887) * '' Aegista lautsi'' (Schmacker & O. Boettger, 1890) * '' Aegista mayasana'' (M. Azuma, 1969) * '' Aegista megachila'' Möllendorff, 1899 * '' Aegista minima'' (Pilsbry, 1902) * '' Aegista mitanensis'' (Godwin-Austen, 1889) * '' Aegista nikkoensis'' Kuroda, 1982 * '' Aegista oculus'' (L. Pfeiffer, 1850) * '' Aegista oldhami'' (Benson, 1859) * '' Aegista omma'' (Pilsbry & Y. Hirase, 1904) * '' Aegista onae'' Thach & F. Huber, 2021 * '' Aegista packhaensis'' Bavay & Dautzenberg, 1909) * '' Aegista permellita'' (Heude, 1886) * '' Aegista perplexa'' (Pilsbry & Hirase, 1905) * '' Aegista phayrei'' (Theobald, 1859) * '' Aegista platyomphala'' (Möllendorff, 1885) * '' Aegista proba'' (A. Adams, 1868) * '' Aegista proxima'' (Pilsbry & Y. Hirase, 1909) * '' Aegista pseudopapuina'' (Möllendorff, 1901) * '' Aegista pseudotrochula'' (Bavay & Dautzenberg, 1909) * ''

Aegista pygmaea ''Aegista pygmaea'' is a species of air-breathing land snails, a terrestrial pulmonate gastropod in the family Camaenidae. Distribution This species occurs in Japan Japan is an island country in East Asia. Located in the Pacific Ocean o ...

'' Kuroda & Kawamoto, 1956 * '' Aegista pyramidata'' (Pilsbry, 1927) * '' Aegista serpestes'' (Heude, 1890) * '' Aegista squarrosa'' (A. Gould, 1859) * '' Aegista stenomphala'' Minato, 2003 * '' Aegista stephanieclarkae'' Thach & F. Huber, 2021 * '' Aegista subchinensis'' (Möllendorff, 1884) * '' Aegista subinflexa'' (Mabille, 1889) * '' Aegista tadai'' Minato, 1983 * '' Aegista taiwanica'' Kuroda, 1941 * '' Aegista tapeina'' (W. H. Benson, 1836) * '' Aegista tenerrima'' Möllendorff, 1899 * '' Aegista tenuissima'' (Pilsbry & Hirase, 1908) * '' Aegista tokyoensis'' Sorita, 1980 * '' Aegista tumida'' (Gude, 1901) * '' Aegista vermis'' (Reeve, 1852)

Synonyms

* ''Aegista aemula'' (Gude, 1900): synonym of '' Plectotropis aemula'' (Gude, 1900) * ''Aegista bonnieri'' (H. Fischer, 1898): synonym of '' Plectotropis bonnieri'' (H. Fischer, 1898) * ''Aegista chondroderma'' (O.F. von Möllendorff, 1900): synonym of '' Plectotropis chondroderma'' Möllendorff, 1900 * ''Aegista coeni'' Preston, 1914: synonym of '' Landouria coeni'' (Preston, 1914) (original combination) * ''Aegista conomphala'' Pilsbry & Y. Hirase, 1903: synonym of '' Plectotropis conomphala'' Pilsbry & Y. Hirase, 1903 * ''Aegista elegantissima'' (L. Pfeiffer, 1849) : synonym of ''

Plectotropis elegantissima ''Plectotropis'' is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Camaenidae.MolluscaBase eds. (2020). MolluscaBase. Plectotropis E. von Martens, 1860. Accessed through: World Register of Marine Spe ...

'' (L. Pfeiffer, 1849) * ''Aegista emma'' (L. Pfeiffer, 1863): synonym of '' Ganesella emma'' (L. Pfeiffer, 1863) (unaccepted > superseded combination) * ''Aegista gerlachi'' E.C. Von Martens, 1881: synonym of ''

Plectotropis gerlachi ''Plectotropis'' is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Camaenidae.MolluscaBase eds. (2020). MolluscaBase. Plectotropis E. von Martens, 1860. Accessed through: World Register of Marine Spe ...

'' (E. von Martens, 1881) * ''Aegista grumulus'' Godwin-Austen, 1891: synonym of '' Landouria grumulus'' (Godwin-Austen, 1891) * ''Aegista horrida'' (Pilsbry, 1900): synonym of ''

Plectotropis horrida ''Plectotropis'' is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Camaenidae.MolluscaBase eds. (2020). MolluscaBase. Plectotropis E. von Martens, 1860. Accessed through: World Register of Marine Spe ...

'' (Pilsbry, 1900) * ''Aegista inexpectata'' Kuroda & Minato, 1977: synonym of ''

Plectotropis inexpectata ''Plectotropis inexpectata'' is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Camaenidae. This species is endemic to Japan Japan is an island country in East Asia. Located in the Pacific O ...

'' (Kuroda & Minato, 1977) * ''Aegista inornata'' (H.A. Pilsbry, 1901): synonym of '' Plectotropis osbeckii'' (R. A. Philippi, 1847) * ''Aegista kiusiuensis'' (Pilsbry, 1900): synonym of '' Plectotropis kiusiuensis'' (Pilsbry, 1900) * ''Aegista lepidophora'' (Gude, 1900): synonym of '' Plectotropis lepidophora'' (Gude, 1900) * ''Aegista mackensii'' (A. Adams & Reeve, 1850) : synonym of '' Plectotropis mackensii'' (Adams & Reeve, 1850) * ''Aegista martensiana'' (H.A. Pilsbry, 1901): synonym of ''Aegista (Aegista) squarrosa squarrosa'' (A. Gould, 1859): synonym of ''Aegista squarrosa squarrosa'' (A. Gould, 1859) * ''Aegista mesasiana'' (Lindholm, 1927): synonym of '' Paedhoplita lentina'' (E. von Martens, 1885) (junior subjective synonym) * ''Aegista marginata'' (Pilsbry & Y. Hirase, 1903): synonym of '' Plectotropis marginata'' (Pilsbry & Y. Hirase, 1903) * ''Aegista mimula'' (H.A. Pilsbry, 1901): synonym of ''Aegista proba mimula'' (Pilsbry, 1900) * ''Aegista omiensis'' (Pilsbry, 1901): synonym of '' Plectotropis omiensis'' (Pilsbry, 1902) * ''Aegista pannosa'' (Pilsbry, 1902): synonym of '' Plectotropis pannosa'' (Pilsbry, 1902) * ''Aegista scepasma'' (Reeve, 1854): synonym of '' Plectotropis scepasma'' (Reeve, 1854) * ''Aegista tenella'' (L. Pfeiffer, 1862) : synonym of '' Chloritis tenella'' (L. Pfeiffer, 1862) (subsequent combination) * ''Aegista tokunoshimana'' Pilsbry & Y. Hirase, 1904: synonym of ''Aegista squarrosa tokunoshimana'' (Pilsbry & Y. Hirase, 1904) * ''Aegista trichotropis'' (L. Pfeiffer, 1850): synonym of '' Plectotropis trichotropis'' (L. Pfeiffer, 1850) * ''Aegista trochula'' (A. Adams, 1868): synonym of '' Neoaegista trochula'' (A. Adams, 1868) * ''Aegista visayana'' (Möllendorf, 1888): synonym of '' Plectotropis visayana'' (Möllendorff, 1888) * ''Aegista vulgivaga''(P.B. Schmacker & O. Böttger, 1890): synonym of '' Plectotropis vulgivaga'' (Schmacker & O. Boettger, 1890) ;Taxon inquirendum: * ''Aegista delectabilis'' (P. Ehrmann, 1900): synonym of '' Plectotropis delectabilis'' Ehrmann, 1900 (uncertain, unassessed) * ''Aegista shermani'' L. Pfeiffer, 1866 sensu Huang et al. (2014) taxon inquirendum, based on a misidentification; not '' Helix shermani'' L. Pfeiffer, 1866)

References

* List of species at

* Taxonomy at

* Bank, R. A. (2017). Classification of the Recent terrestrial Gastropoda of the World. Last update: 16 July 2017.

External links

Albers, J. C. (1850). Die Heliceen nach natürlicher Verwandtschaft systematisch geordnet. Berlin: Enslin. 262 pp.
Aegista, Camaenidae Taxonomy articles created by Polbot Gastropod genera {{Camaenidae-stub