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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Click to filter list on Geographical RangeGenus: Therasia
- Therasia decidua (L. Pfeiffer, 1857)
Width 9.5mm, Height 7mm
Land, Endemic
North and South Island
L.N.S.E. - Therasia ophelia (L. Pfeiffer, 1855)
Width 8mm, Height 4.5mm
Land, Endemic
North and South Island. Under stones
L.N.S.E. 
- Therasia traversi (E.A. Smith, 1884)
Width 12.5mm, Height 8mm
Land, Endemic
North and South Island
L.N.S.E.
- Therasia valeria Hutton, 1883
Width 7.5mm, Height 4mm
Land, Endemic
South Island. Christchurch and Dunedin
L.S.E.
Key to 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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