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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)
> dimorphus (Species)
Genus Synonyms:
=Flammulina (Allodiscus) Pilsbry, 1892
=Gerontia (Allodiscus) Pilsbry, 1892
=Psyra Hutton, 1883
Synonymised Names:
=Helix dimorpha Reeve, 1852
=Helix dimorpha L. Pfeiffer, 1853
Images: Allodiscus dimorphus (L. Pfeiffer, 1852)
Collected 11 Jan 2006, Cashe's Bush 2, Maungaharuru Range, Hawkes Bay, NZ. 6.0mm. Reproduced courtesy of Dave Roscoe
Collected 11 Jan 2006, Cashe's Bush 2, Maungaharuru Range, Hawkes Bay, NZ. 6.0mm. Reproduced courtesy of Dave Roscoe
Collected 11 Jan 2006, Cashe's Bush 2, Maungaharuru Range, Hawkes Bay, NZ. 6.0mm. Reproduced courtesy of Dave Roscoe
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)
> dimorphus (Species)
Genus Synonyms:
=Flammulina (Allodiscus) Pilsbry, 1892
=Gerontia (Allodiscus) Pilsbry, 1892
=Psyra Hutton, 1883
Synonymised Names:
=Helix dimorpha Reeve, 1852
=Helix dimorpha L. Pfeiffer, 1853
Details: Allodiscus dimorphus (L. Pfeiffer, 1852)
Size/Grows to:
Width 9.5mm, Height 6mm
Distribution:
North Island. Northland to Wellington
Geographical Range:
L.N.
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.70)
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.319)
  • Reeve, L.A. 1852 Monograph of the genus Helix, Conchologia Iconica, or illustrations of the shells of molluscous animals, 7 Original Description

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
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