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Taxonomy
Family: Subfamily:
CHAROPIDAE: PHENACOHELICINAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Heterobranchia (Subclass)
> Euthyneura (Infraclass)
> Tectipleura (Subterclass)
> Eupulmonata (Superorder)
> Stylommatophora (Order)
> Helicina (Suborder)
> [unassigned] Helicina (Infraorder)
> Punctoidea (Superfamily)
> Charopidae (Family)
> Phenacohelicinae (Subfamily)
> Allodiscus (Genus)
> austrodimorphus (Species)
Genus Synonyms:
=Flammulina (Allodiscus) Pilsbry, 1892
=Gerontia (Allodiscus) Pilsbry, 1892
=Psyra Hutton, 1883
Images: Allodiscus austrodimorphus Dell, 1955
Head of Windward River, Fiordland, NZ. 5.0mm. Reproduced courtesy of iNaturalist.nz ©openlabnz (D.J.Roscoe)
Head of Windward River, Fiordland, NZ. 5.0mm. Reproduced courtesy of iNaturalist.nz ©openlabnz (D.J.Roscoe)
Head of Windward River, Fiordland, NZ. 5.0mm. Reproduced courtesy of iNaturalist.nz ©openlabnz (D.J.Roscoe)
Holotype, collected 13 March 1949, Stillwater River, Caswell Sound head, NZ (M.006149). 5.0mm. © Museum of New Zealand Te Papa Tongarewa (CC-BY-NC-ND)
Holotype, collected 13 March 1949, Stillwater River, Caswell Sound head, NZ (M.006149). 5.0mm. © Museum of New Zealand Te Papa Tongarewa (CC-BY-NC-ND)
Holotype, collected 13 March 1949, Stillwater River, Caswell Sound head, NZ (M.006149). 5.0mm. © Museum of New Zealand Te Papa Tongarewa (CC-BY-NC-ND)
Taxonomy
Family: Subfamily:
CHAROPIDAE: PHENACOHELICINAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Heterobranchia (Subclass)
> Euthyneura (Infraclass)
> Tectipleura (Subterclass)
> Eupulmonata (Superorder)
> Stylommatophora (Order)
> Helicina (Suborder)
> [unassigned] Helicina (Infraorder)
> Punctoidea (Superfamily)
> Charopidae (Family)
> Phenacohelicinae (Subfamily)
> Allodiscus (Genus)
> austrodimorphus (Species)
Genus Synonyms:
=Flammulina (Allodiscus) Pilsbry, 1892
=Gerontia (Allodiscus) Pilsbry, 1892
=Psyra Hutton, 1883
Details: Allodiscus austrodimorphus Dell, 1955
Size/Grows to:
Width 5.6mm, Height 3.6mm
Distribution:
West Coast South Island
Geographical Range:
L.S.
Notes:
Land, Native - Endemic
Distribution Map
 
References and Publications
  • Marshall, B.A., Barker, G.M. 2008 A revision of the New Zealand land snails referred to Allodiscus Pilsbry, 1892 and Pseudallodiscus Climo, 1971, with the introduction of three new genera (Mollusca: Gastropoda: Charopidae), Tuhinga: Records of the Museum of New Zealand Te Papa Tongarewa, 19 (p.110)
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.319)
  • Dell, R.K. 1955 The land Mollusca of Fiordland, south-west Otago, Transactions and Proceedings of the Royal Society of New Zealand, 82(5) (p.1137) Original Description

*98 © Museum of New Zealand Te Papa Tongarewa (CC-BY-NC-ND)

Key to Geographical Ranges
NZ Map showing Geographical Ranges
The symbols K.A.C.F.M.An. are used to indicate the geographical range of the species. They have been adopted to give an approximation of the range of each species within New Zealand.
K=
Kermadec Islands
A=
Aupourian - Kaipara Harbour, north around North Cape, encompassing the Three Kings Islands and south to East Cape
C=
Cookian - Lower North Island and the northern part of the South Island
F=
Forsterian - Otago, Fiordland and Stewart Island
M=
Moriorian - Chatham Islands, Pitt Island
An=
Antipodean - Subantarctic Islands of New Zealand
Fw =
Freshwater
L =
Land
N =
North Island
S =
South Island
R =
Recent
Sf =
Subfossil
Fo =
Fossil