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Taxonomy
Family:
MELANOPSIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> [unassigned] Caenogastropoda (Order)
> Cerithioidea (Superfamily)
> Melanopsidae (Family)
> Zemelanopsis (Genus)
> trifasciata (Species)
Genus Synonyms:
=Melanopsis strangei Reeve, 1860
=Melanopsis trifasciata Gray, 1843
=Melanopsis zelandica Gould, 1847
Synonymised Names:
=Melanopsis strangei Reeve, 1860
=Melanopsis trifasciata Gray, 1843
=Melanopsis zelandica Gould, 1847
Images: Zemelanopsis trifasciata Gray in Dieffenbach, 1843
Warkworth, Northland, NZ. 32mm
Taxonomy
Family:
MELANOPSIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> [unassigned] Caenogastropoda (Order)
> Cerithioidea (Superfamily)
> Melanopsidae (Family)
> Zemelanopsis (Genus)
> trifasciata (Species)
Genus Synonyms:
=Melanopsis strangei Reeve, 1860
=Melanopsis trifasciata Gray, 1843
=Melanopsis zelandica Gould, 1847
Synonymised Names:
=Melanopsis strangei Reeve, 1860
=Melanopsis trifasciata Gray, 1843
=Melanopsis zelandica Gould, 1847
Details: Zemelanopsis trifasciata Gray in Dieffenbach, 1843
Size/Grows to:
Height 38mm, Width 21mm
Distribution:
North and South Islands, from Spirits Bay to Dunedin
Geographical Range:
Fw.N.S.
Notes:
Brackish, Freshwater, Native - Endemic
Distribution Map
 
References and Publications
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.130)

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