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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)
> Therasia (Genus)
> traversi (Species)
Synonymised Names:
=Helix (Thalassia) traversi E. A. E.A. Smith, 1884
=Thalassia neozelanica f. pallidula Suter, 1892
Images: Therasia traversi (E.A. Smith, 1884)
Collected Mar 1979, Waitawhero Saddle, Kaweka Forest SE of Turangi, Central Plateau, NZ. 10.1mm. Reproduced courtesy of Dave Roscoe
Collected Mar 1979, Waitawhero Saddle, Kaweka Forest SE of Turangi, Central Plateau, NZ. 10.1mm. Reproduced courtesy of Dave Roscoe
Collected Mar 1979, Waitawhero Saddle, Kaweka Forest SE of Turangi, Central Plateau, NZ. 10.1mm. Reproduced courtesy of Dave Roscoe
Collected Feb 2004, Watako, Silverstream, Upper Hutt, Wellington, NZ. 10.8mm. Reproduced courtesy of Dave Roscoe
Collected Feb 2004, Watako, Silverstream, Upper Hutt, Wellington, NZ. 10.8mm. Reproduced courtesy of Dave Roscoe
Collected Feb 2004, Watako, Silverstream, Upper Hutt, Wellington, NZ. 10.8mm. 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)
> Therasia (Genus)
> traversi (Species)
Synonymised Names:
=Helix (Thalassia) traversi E. A. E.A. Smith, 1884
=Thalassia neozelanica f. pallidula Suter, 1892
Details: Therasia traversi (E.A. Smith, 1884)
Size/Grows to:
Width 12.5mm, Height 8mm
Distribution:
North and South Island
Geographical Range:
L.N.S.E.
Notes:
Land, Endemic
Distribution Map
 
References and Publications
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.317)
  • Smith, E.A. 1884 An account of the land and freshwater Mollusca collected during the Voyage of the 'Challenger' from December 1872 to May 1876, Proceedings of the Zoological Society of London, 52(3) (p.274) 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
E =
Endemic
I =
Introduced
R =
Recent
Sf =
Subfossil
Fo =
Fossil
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