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Taxonomy
Family:
ANABATHRIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Littorinimorpha (Order)
> Truncatelloidea (Superfamily)
> Anabathridae (Family)
> Pisinna (Genus)
> asymmetrica (Species)
Genus Synonyms:
=Estea Iredale, 1915
=Estea (Microestea) Ponder, 1965
=Feldestea Iredale, 1955
=Hagenmulleria Bourguignat, 1881
=Microestea Ponder, 1965
=Nodulestea Iredale, 1955
=Pisanna Monterosato, 1878 (misspelling)
Synonymised Names:
=Estea asymmetrica Laws, 1941
Images: Pisinna asymmetrica (Laws, 1941)
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Taxonomy
Family:
ANABATHRIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Littorinimorpha (Order)
> Truncatelloidea (Superfamily)
> Anabathridae (Family)
> Pisinna (Genus)
> asymmetrica (Species)
Genus Synonyms:
=Estea Iredale, 1915
=Estea (Microestea) Ponder, 1965
=Feldestea Iredale, 1955
=Hagenmulleria Bourguignat, 1881
=Microestea Ponder, 1965
=Nodulestea Iredale, 1955
=Pisanna Monterosato, 1878 (misspelling)
Synonymised Names:
=Estea asymmetrica Laws, 1941
Details: Pisinna asymmetrica (Laws, 1941)
Size/Grows to:
Height 1.95mm, Width 0.88mm
Distribution:
Off Northland to Bay of Plenty
Geographical Range:
AR.Fo.
Notes:
Marine, Recent, Fossil, Native - Endemic
Distribution Map
 
References and Publications
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.100)
  • Laws, C.R. 1941 The molluscan faunule at Pakaurangi Point, Kaipara. No. 2, Transactions and Proceedings of the Royal Society of New Zealand, 71 (p.140) Original Description

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