MolluscaBase name details
Helicostyla (Crystallopsis) extensa (O. F. Müller, 1774)
1522472 (urn:lsid:marinespecies.org:taxname:1522472)
unaccepted (unaccepted combination)
Species
(of Helix extensa O. F. Müller, 1774) Müller, O. F. (1773-1774). <i>Vermium terrestrium et fluviatilium, seu animalium infusoriorum, helminthicorum, et testaceorum, non marinorum, succincta historia</i>. <em>[Book].</em> Vol. 1: 1-136 Infusoria [1773] / Vol1 [part 2] 1-78 Helminthica 1-72 [1774] ; Vol. 2: 1-214 Testacea + index 8 pp. [1774]. Havniæ (Copenhagen) & Lipsiæ (Leipzig): Heineck & Faber., available online at https://www.biodiversitylibrary.org/item/50344
page(s): 60 [details]
page(s): 60 [details]
MolluscaBase eds. (2021). MolluscaBase. Helicostyla (Crystallopsis) extensa (O. F. Müller, 1774). Accessed at: http://www.molluscabase.org/aphia.php?p=taxdetails&id=1522472 on 2025-09-11
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(of Helix extensa O. F. Müller, 1774) Müller, O. F. (1773-1774). <i>Vermium terrestrium et fluviatilium, seu animalium infusoriorum, helminthicorum, et testaceorum, non marinorum, succincta historia</i>. <em>[Book].</em> Vol. 1: 1-136 Infusoria [1773] / Vol1 [part 2] 1-78 Helminthica 1-72 [1774] ; Vol. 2: 1-214 Testacea + index 8 pp. [1774]. Havniæ (Copenhagen) & Lipsiæ (Leipzig): Heineck & Faber., available online at https://www.biodiversitylibrary.org/item/50344
page(s): 60 [details]
basis of record Pilsbry, H. A. (1893-1895). <i>Manual of conchology, structural and systematic, with illustrations of the species</i>. Ser. 2, Pulmonata. Vol. 9: Helicidae, Vol. 7, Guide to the study of Helices. pp i-xlviii, 1-366, pls 1-71. Philadelphia, published by the Conchological Section, Academy of Natural Sciences. [pp. 1-48, pls 1-14, 16 Nov 1893; pp. 49-112, pls 15-28, 19 Mar 1894; pp. 113-160, pls 29-40, 27 Jul 1894; pp. 161-366, pls 41-71, i-xlviii, 2 Feb 1895; index 1-126, April 1895]. , available online at https://www.biodiversitylibrary.org/page/1102607
page(s): 221 [details]
page(s): 60 [details]
basis of record Pilsbry, H. A. (1893-1895). <i>Manual of conchology, structural and systematic, with illustrations of the species</i>. Ser. 2, Pulmonata. Vol. 9: Helicidae, Vol. 7, Guide to the study of Helices. pp i-xlviii, 1-366, pls 1-71. Philadelphia, published by the Conchological Section, Academy of Natural Sciences. [pp. 1-48, pls 1-14, 16 Nov 1893; pp. 49-112, pls 15-28, 19 Mar 1894; pp. 113-160, pls 29-40, 27 Jul 1894; pp. 161-366, pls 41-71, i-xlviii, 2 Feb 1895; index 1-126, April 1895]. , available online at https://www.biodiversitylibrary.org/page/1102607
page(s): 221 [details]
