Rachis is a genus of air-breathing land snails, terrestrial pulmonate gastropod molluscs in the family Cerastidae.[2]

Rachis
Shell of Rachis venusta (syntype at MNHN, Paris)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Stylommatophora
Infraorder: Pupilloidei
Superfamily: Pupilloidea
Family: Cerastidae
Genus: Rachis
Albers, 1850[1]
Type species
Bulimus pallens
Jonas, 1843
Synonyms[2]
  • Buliminus (Rachis) Albers, 1850
  • Buliminus (Rhachis) L. Pfeiffer, 1856
  • Bulimus (Rachis) Albers, 1850 (original rank)
  • Bulimus (Rhachis) L. Pfeiffer, 1856 (superseded combination)
  • Ena (Rachisellus) Bourguignat, 1890 (junior synonym)
  • Rachis (Rachis) Albers, 1850
  • Rachisellus Bourguignat, 1890
  • Rhachis L. Pfeiffer, 1856 (invalid: unjustified emendation of Rachis Albers, 1850)

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

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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  • Rachis braunsii (E. von Martens, 1869): synonym of Rhachistia braunsii (E. von Martens, 1869) (superseded combination)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

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  1. ^ Albers, J. C. (1850). Die Heliceen, nach natürlicher Verwandtschaft systematisch geordnet. Berlin: Th. Chr. Fr. Enslin.
  2. ^ 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 31 March 2022
  3. ^ "WMDSB-Cerastidae". Cerastidae.
  4. ^ 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.
  5. ^ Anton, H. E. (1839). Verzeichniss der Conchylien welche sien in der Sammlung. Halle: Eduard Anton.
  6. ^ "WMDSB-Cerastidae". Rhachis tulearensis.
  7. ^ 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: 16 July 2017
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