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Taxonomy
Family: Subfamily:
CHAROPIDAE: CHAROPINAE
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)
> Charopinae (Subfamily)
> Cavellia (Genus)
> biconcava (Species)
Synonymised Names:
=Endodonta biconcava (L. Pfeiffer, 1853)
=Helix biconcava L. Pfeiffer, 1853
=Helix biconcava Reeve, 1852
=Cavellia infecta of authors
Images: Cavellia biconcava (L. Pfeiffer, 1853)
Ongaonga, Hawkes Bay, NZ. 4.8mm. Reproduced courtesy of iNaturalist.nz ©openlabnz (D.J.Roscoe)
Ongaonga, Hawkes Bay, NZ. 4.8mm. Reproduced courtesy of iNaturalist.nz ©openlabnz (D.J.Roscoe)
Ongaonga, Hawkes Bay, NZ. 4.8mm. Reproduced courtesy of iNaturalist.nz ©openlabnz (D.J.Roscoe)
Woodville, Wairarapa, NZ. 5.6mm. Reproduced courtesy of Dave Roscoe
Woodville, Wairarapa, NZ. 5.6mm. Reproduced courtesy of Dave Roscoe
Woodville, Wairarapa, NZ. 5.6mm. Reproduced courtesy of Dave Roscoe
Taxonomy
Family: Subfamily:
CHAROPIDAE: CHAROPINAE
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)
> Charopinae (Subfamily)
> Cavellia (Genus)
> biconcava (Species)
Synonymised Names:
=Endodonta biconcava (L. Pfeiffer, 1853)
=Helix biconcava L. Pfeiffer, 1853
=Helix biconcava Reeve, 1852
=Cavellia infecta of authors
Details: Cavellia biconcava (L. Pfeiffer, 1853)
Size/Grows to:
Width 5mm, Height 2.2mm
Distribution:
North and South Island
Geographical Range:
L.N.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.307)

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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