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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)
> fallax (Species)
Genus Synonyms:
=Flammulina (Allodiscus) Pilsbry, 1892
=Gerontia (Allodiscus) Pilsbry, 1892
=Psyra Hutton, 1883
Images: Allodiscus fallax Powell, 1952
Oruru Bay, near Knuckle Point, Karikari Peninsula, NZ (MA71179). 7.25mm. © Auckland Museum (CC-BY)
Oruru Bay, near Knuckle Point, Karikari Peninsula, NZ (MA71179). 7.25mm. © Auckland Museum (CC-BY)
Oruru Bay, near Knuckle Point, Karikari Peninsula, NZ (MA71179). 7.25mm. © Auckland Museum (CC-BY)
Whatuwhiwhi, Karikari Peninsula, Northland, NZ. 7.3mm. Reproduced courtesy of iNaturalist.nz ©openlabnz (D.J.Roscoe)
Whatuwhiwhi, Karikari Peninsula, Northland, NZ. 7.3mm. Reproduced courtesy of iNaturalist.nz ©openlabnz (D.J.Roscoe)
Whatuwhiwhi, Karikari Peninsula, Northland, NZ. 7.3mm. Reproduced courtesy of iNaturalist.nz ©openlabnz (D.J.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)
> fallax (Species)
Genus Synonyms:
=Flammulina (Allodiscus) Pilsbry, 1892
=Gerontia (Allodiscus) Pilsbry, 1892
=Psyra Hutton, 1883
Details: Allodiscus fallax Powell, 1952
Size/Grows to:
Width 7.3mm, Height 4.8mm
Distribution:
North Island
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.72)
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.319)
  • Powell, A.W.B. 1952 Four new species of New Zealand land snails and the systematic position of Gerontia cordelia Hutton, Records of the Auckland Institute and Museum, 4(3) (p.163) 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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