MolluscaBase taxon details

Dorcasia alexandri J. E. Gray, 1838

1058311  (urn:lsid:marinespecies.org:taxname:1058311)

accepted
Species
Helix (Dorcasia) alexandri (J. E. Gray, 1838) · unaccepted > superseded combination
Helix alexandri (Gray, 1838) · unaccepted (chresonym)

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  1. Subspecies Dorcasia alexandri alexandri J. E. Gray, 1838
  2. Subspecies Dorcasia alexandri minor (O. Boettger, 1886)
  3. Subspecies Dorcasia alexandri siegmanni Honigmann, 1914
  4. Subspecies Dorcasia alexandri trivia (O. Boettger, 1910)
  5. Subspecies Dorcasia alexandri rotundata (Mousson, 1888) accepted as Dorcasia alexandri siegmanni Honigmann, 1914 (name based on junior primary homonym)
  6. Variety Dorcasia alexandri var. glabra Adensamer, 1929 accepted as Dorcasia perspectiva glabra Adensamer, 1929 (unaccepted > superseded combination)
  7. Variety Dorcasia alexandri var. minor (O. Boettger, 1886) accepted as Dorcasia alexandri minor (O. Boettger, 1886) (unaccepted > superseded rank)
  8. Variety Dorcasia alexandri var. montana Connolly, 1916 accepted as Dorcasia perspectiva montana Connolly, 1916 (unaccepted > superseded combination)
  9. Variety Dorcasia alexandri var. perspectiva Connolly, 1915 accepted as Dorcasia perspectiva Connolly, 1915 (unaccepted > superseded combination, basionym)
  10. Variety Dorcasia alexandri var. rotundata (Mousson, 1888) accepted as Dorcasia alexandri siegmanni Honigmann, 1914 (name based on junior primary homonym)
  11. Variety Dorcasia alexandri var. siegmanni Honigmann, 1914 accepted as Dorcasia alexandri siegmanni Honigmann, 1914 (unaccepted > superseded combination)
  12. Variety Dorcasia alexandri var. trivia (O. Boettger, 1910) accepted as Dorcasia alexandri trivia (O. Boettger, 1910) (unaccepted > superseded rank)
  13. Variety Dorcasia alexandri var. reflexilabris Connolly, 1939 (uncertain > taxon inquirendum, use in recent literature currently undocumented)
marine, brackish, fresh, terrestrial
Gray, J. E. (1838). Pp. 268-269, in: Alexander, J.E. <i>An expedition of discovery into the interior of Africa, through the hitherto undescribed countries of the Great Namaquas, Boschmans, and Hill Damaras</i>. Henry Colburn, London. Appendix 1 in Volume 2.
page(s): 268 [details] 
Note Types in NHMUK.  
Type material Types in NHMUK. [details]
MolluscaBase eds. (2025). MolluscaBase. Dorcasia alexandri J. E. Gray, 1838. Accessed at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1058311 on 2025-09-10
Date
action
by
2018-02-07 06:28:42Z
created
2025-01-19 12:02:47Z
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original description Gray, J. E. (1838). Pp. 268-269, in: Alexander, J.E. <i>An expedition of discovery into the interior of Africa, through the hitherto undescribed countries of the Great Namaquas, Boschmans, and Hill Damaras</i>. Henry Colburn, London. Appendix 1 in Volume 2.
page(s): 268 [details] 

basis of record Connolly, M. (1915). Notes on South African Mollusca. <em>Annals of the South African Museum.</em> 13: 99-178, pls 2-4., available online at https://www.biodiversitylibrary.org/page/13005746
page(s): 167 [details] 

additional source Connolly, M. (1939). A monographic survey of South African non-marine Mollusca. <em>Annals of the South African Museum.</em> 33: 1-660.
page(s): 273 [details] Available for editors  PDF available [request]

additional source Bruggen, A. C. van. (1970). A contribution to the knowledge of non-marine Mollusca of South West Africa. <em>Zoologische Mededelingen.</em> 45(4): 43–73., available online at https://repository.naturalis.nl/pub/318771
page(s): 66; note: anatomy [details] 
 
 Present  Inaccurate  Introduced: alien  Containing type locality 
   

From editor or global species database
Type material Types in NHMUK. [details]
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