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Mollusca (Phylum) > Gastropoda (Class) > Heterobranchia (Subclass) > Stylommatophora (Order) > Punctoidea (Superfamily) > Charopidae (Family) > Therasiinae (Subfamily) > Thalassohelix (Genus)
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  • Thalassohelix antipoda (Hombron & Jacquinot, 1841)
    Width 7mm, Height 4mm, Land, Endemic
    Auckland Islands L.E.
  • Thalassohelix chathamensis (Suter, 1909)
    Width 7mm, Height 4.5mm, Land, Endemic
    Chatham Islands L.E.
  • Thalassohelix igniflua (Reeve, 1852)
    Width 15.5mm, Height 8.8mm, Land, South Island, Endemic
    Southern half of South Island L.S.E.
  • Thalassohelix laingi (Suter, 1905)
    Width 16.8mm, Height 9mm, Land, South Island, Endemic
    South Island. Southland L.S.E.
  • Thalassohelix propinqua (Hutton, 1883)
    Width 6mm, Height 4mm, Land, North Island, South Island, Endemic
    North and South Island L.N.S.E.
  • Thalassohelix pygmaea Suter, 1913
    Land, South Island, Endemic
    South Island L.S.E.
  • Thalassohelix zelandiae (Gray in Dieffenbach, 1843)
    Width 11mm, Height 8.3mm, Land, North Island, South Island, Endemic
    North, South and Chatham Islands L.N.S.E.
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 approxomation 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