Rachis is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Cerastidae.[2]
| Rachis | |
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| Shell of Rachis venusta (syntype at MNHN, Paris) | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Heterobranchia |
| Order: | Stylommatophora |
| Infraorder: | Pupilloidei |
| Superfamily: | Pupilloidea |
| Family: | Cerastidae |
| Genus: | Rachis Albers, 1850[1] |
| Type species | |
| Bulimus pallens Jonas, 1843
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| Synonyms[2] | |
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This genus is also spelled as “Rhachis”as a synonym.[3] Rachis is a Latinised version of rhachis (a midrib or ridge) or rhachos (a thorn or thorn bush), both of which are Greek nouns of feminine gender.[2]
Species edit
- Rachis ambongoensis Fischer-Piette, 1964
- Rachis aurea (Heude, 1890)
- Rachis badiola (Morelet, 1881)
- Rachis bewsheri (Morelet, 1877)
- Rachis catenata (E. von Martens, 1860)
- Rachis comorensis (Morelet, 1881)
- Rachis cunctatoris van Bruggen, 1975
- Rachis electrina (Morelet, 1864)
- Rachis elongatula Bourguignat, 1890
- Rachis fagotiana (Ancey, 1885)
- Rachis genalensis Kobelt, 1910
- Rachis gracillima F. Haas, 1936
- Rachis humbloti (Morelet, 1888) (accepted > unreplaced junior homonym)
- Rachis ingenua (Morelet, 1864)
- Rachis jejuna (Melvill & Ponsonby, 1893)[4]
- Rachis nigrilineata (Reeve, 1849)
- Rachis obeliscus C. R. Boettger, 1913
- Rachis pachistoma Bourguignat, 1890
- Rachis punctata (Anton, 1838)[5]
- Rachis stahlbergi C. R. Boettger, 1913
- Rachis tulearensis Fischer-Piette, 1964[6]
- Rachis venusta (Morelet, 1861)
- Rachis zonulata (L. Pfeiffer, 1846)
- Synonyms
- Rachis aldabrae (E. von Martens, 1898): synonym of Rhachistia aldabrae (E. von Martens, 1898) (unaccepted combination)
- Rachis badiolus: synonym of Rachis badiola (Morelet, 1881) (incorrect grammatical agreement of specific epithet)
- Rachis bidwilli (Cox, 1868): synonym of Rhachistia histrio (L. Pfeiffer, 1855)
- Rachis bloyeti Bourguignat, 1890: synonym of Rhachidina braunsii (E. von Martens, 1869): synonym of Rhachistia braunsii (E. von Martens, 1869) (junior synonym)
- Rachis boehmi (E. von Martens, 1895): synonym of Rhachistia boehmi (E. von Martens, 1895)
- Rachis braunsii (E. von Martens, 1869): synonym of Rhachistia braunsii (E. von Martens, 1869) (superseded combination)
- Rachis burnayi (Dohrn, 1866): synonym of Gittenedouardia burnayi (Dohrn, 1866)
- Rachis burtoi (Bourguignat, 1890): synonym of Rachis punctata (Anton, 1838) (junior synonym)
- Rachis chalcedonica (Gredler, 1887): synonym of Mirus chalcedonicus (Gredler, 1887) (unaccepted combination)
- Rachis dohrni (Greeff, 1882): synonym of Aporachis dohrni (Greeff, 1882)
- Rachis eminula (Morelet, 1848): synonym of Gittenedouardia eminula (Morelet, 1848)
- Rachis erlangeri Kobelt, 1910: synonym of Rhachistia erlangeri (Kobelt, 1910) (unaccepted combination)
- Rachis fagotianus: synonym of Rachis fagotiana (Ancey, 1885) (incorrect grammatical agreement of specific epithet)
- Rachis hieroglyphicus Preston, 1910: synonym of Rachis hieroglyphica Preston, 1910 (incorrect grammatical agreement of specific epithet)
- Rachis hispida (Greeff, 1882): synonym of Aporachis hispida (Greeff, 1882)
- Rachis ingenuus: synonym of Rachis ingenua (Morelet, 1864) (incorrect grammatical agreement of specific epithet)
- Rachis jouberti Bourguignat, 1890: synonym of Rhachidina braunsii var. succincta (E. von Martens, 1879): synonym of Rhachistia braunsii (E. von Martens, 1869)
- Rachis libbahensis (Tomlin, 1910): synonym of Zebrinops libbahensis (Tomlin, 1910)
- Rachis moluensis Kobelt, 1910: synonym of Rhachistia moluensis (Kobelt, 1910)
- Rachis nigrilineatus (Reeve, 1849): synonym of Rachis nigrilineata (Reeve, 1849) (incorrect grammatical agreement of specific epithet)
- Rachis onychinus (Heude, 1885): synonym of Sinorachis onychinus (Heude, 1885) (unaccepted combination
- Rachis petersi (Pfeiffer, 1855):[7] synonym of Pleurorhachis petersi (L. Pfeiffer, 1855) (superseded combination)
- Rachis punctatus (Anton, 1838): synonym of Rachis punctata (Anton, 1838) (incorrect grammatical agreement of specific epithet)
- Rachis rorkorensis Kobelt, 1910: synonym of Rhachistia rorkorensis (Kobelt, 1910)
- Rachis succincta (E. von Martens, 1879): synonym of Rhachistia braunsii (E. von Martens, 1869) (junior synonym)
- Rachis turricula Preston, 1911: synonym of Gittenedouardia turricula (Preston, 1911) (original combination)
- Rachis venustus (Morelet, 1861): synonym of Rachis venusta (Morelet, 1861) (incorrect grammatical agreement of specific epithet)
- Rachis vesiculatus (Benson, 1859): synonym of Rhachistia vesiculata (Benson, 1859) (incorrect grammatical agreement of specific epithet)
- Rachis vicinus Preston, 1910: synonym of Rhachistia chiradzuluensis (E.A. Smith, 1899) (junior synonym)
- Rachis virginea Preston, 1911: synonym of Rhachistia chiradzuluensis var. virginea (Preston, 1911) (original combination)
References edit
- ^ Albers, J. C. (1850). Die Heliceen, nach natürlicher Verwandtschaft systematisch geordnet. Berlin: Th. Chr. Fr. Enslin.
- ^ a b c MolluscaBase eds. (2022). MolluscaBase. Rachis Albers, 1850. Accessed through: World Register of Marine Species at: https://marinespecies.org/aphia.php?p=taxdetails&id=995163 on 2022-03-31
- ^ "WMDSB-Cerastidae". Cerastidae.
- ^ Melvill, J. C. & Ponsonby, J. H. (1893). Descriptions of twenty new species of terrestrial and fluviatile Mollusca from South Africa. Annals and Magazine of Natural History, 12(68), 103–112.
- ^ Anton, H. E. (1839). Verzeichniss der Conchylien welche sien in der Sammlung. Halle: Eduard Anton.
- ^ "WMDSB-Cerastidae". Rhachis tulearensis.
- ^ Pfeiffer, L. (1855). Description of thirty-eight new species of Helicea, from the collection of H. Cuming, Esq. Proceedings of the Zoological Society of London, 23, 91–101.
- Bank, R. A. (2017). Classification of the Recent terrestrial Gastropoda of the World. Last update: July 16, 2017
External links edit
Media related to Rachis at Wikimedia Commons- Albers, J. C. (1850). Die Heliceen nach natürlicher Verwandtschaft systematisch geordnet. Berlin: Enslin. 262 pp.
- Bourguignat, J.-R. (1890). Mollusques de l'Afrique équatoriale de Moguedouchou à Bagamoyo et de Bagamoyo au Tanganika. 1-229, pls 1-8. Book dated 1889, publication date 1890
