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Species List for Genus: Therasia
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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)
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  • Genus: Therasia

  • Therasia decidua (L. Pfeiffer, 1857)
    Width 9.5mm, Height 7mm
    Land, Native - Endemic
    North and South Island
    L.N.S.
  • Therasia ophelia (L. Pfeiffer, 1855)
    Width 8mm, Height 4.5mm
    Land, Native - Endemic
    North and South Island. Under stones
    L.N.S.
  • Therasia propinqua (Hutton, 1882)
    Width 6mm, Height 4mm
    Land, Native - Endemic
    North and South Island
    L.N.S.
  • Therasia thaisa Hutton, 1883
    Width 10.3mm, Height 8mm
    Land, Native - Endemic
    South and Stewart Island
    L.S.
  • Therasia traversi (E.A. Smith, 1884)
    Width 12.5mm, Height 8mm
    Land, Native - Endemic
    North and South Island
    L.N.S.
  • Therasia valeria Hutton, 1883
    Width 7.5mm, Height 4mm
    Land, Native - Endemic
    South Island. Christchurch and Dunedin
    L.S.
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