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Taxonomy
Family: Subfamily:
CHAROPIDAE: THERASIINAE
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)
> Therasiinae (Subfamily)
> Phacussa (Genus)
> helmsi (Species)
Genus Synonyms:
=Flammulina (Phacussa) Hutton, 1883
=Phelussa Iredale, 1915
Synonymised Names:
=Phacussa helmsi var. maculata Hutton, 1884
=Zonites helmsii Hutton, 1882
Images: Phacussa helmsi (Hutton, 1882)
Miller Peaks area, NW of Te Anau, Murchison Mountains, Fiordland, NZ. 11.3mm. Reproduced courtesy of Dave Roscoe
Miller Peaks area, NW of Te Anau, Murchison Mountains, Fiordland, NZ. 11.3mm. Reproduced courtesy of Dave Roscoe
Miller Peaks area, NW of Te Anau, Murchison Mountains, Fiordland, NZ. 11.3mm. Reproduced courtesy of Dave Roscoe
Poison Bay, S of Milford Sound, Fiordland, NZ. 8.0mm. Reproduced courtesy of Dave Roscoe
Poison Bay, S of Milford Sound, Fiordland, NZ. 8.0mm. Reproduced courtesy of Dave Roscoe
Poison Bay, S of Milford Sound, Fiordland, NZ. 8.0mm. Reproduced courtesy of Dave Roscoe
Taxonomy
Family: Subfamily:
CHAROPIDAE: THERASIINAE
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)
> Therasiinae (Subfamily)
> Phacussa (Genus)
> helmsi (Species)
Genus Synonyms:
=Flammulina (Phacussa) Hutton, 1883
=Phelussa Iredale, 1915
Synonymised Names:
=Phacussa helmsi var. maculata Hutton, 1884
=Zonites helmsii Hutton, 1882
Details: Phacussa helmsi (Hutton, 1882)
Size/Grows to:
Width 9.5mm, Height 6mm
Distribution:
South Island. Greymouth
Geographical Range:
L.S.
Notes:
Land, Native - Endemic
Distribution Map
 
References and Publications
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.315)
  • Hutton, F.W. 1882 Descriptions of new land shells, New Zealand Journal of Science, 1(6) (p.281) 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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