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Taxonomy
Family:
ANABATHRIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Littorinimorpha (Order)
> Truncatelloidea (Superfamily)
> Anabathridae (Family)
> Amphithalamus (Genus)
> incidatus maoria (Species)
Genus Synonyms:
=Amphitalamus Carpenter, 1864 (misspelling)
=Amphithalamus (Amphithalamus) Carpenter, 1864
=Amphithalamus (Notoscrobs) Powell, 1927
=Amphithalimus Carpenter, 1864 (misspelling)
=Amphithalmus Carpenter, 1864 (misspelling)
=Microfossa Laseron, 1950
=Notoscrobs Powell, 1927
=Notoscrobs (Microfossa) Laseron, 1950
=Obescrobs Iredale, 1955
=Rissoa (Amphithalamus) Carpenter, 1864
Synonymised Names:
=Notoscrobs (Microfossa) incidatus maoria Ponder, 1968
Images: Amphithalamus incidatus maoria (Ponder, 1968)
Holotype of Notoscrobs (Microfossa) incidata maoria, collected 13 October 1957, between Pukerua Bay & Paekakariki, N of Wellington, NZ (M.021745). ~1.5mm. © Museum of New Zealand Te Papa Tongarewa (CC-BY-NC-ND)
Taxonomy
Family:
ANABATHRIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Littorinimorpha (Order)
> Truncatelloidea (Superfamily)
> Anabathridae (Family)
> Amphithalamus (Genus)
> incidatus maoria (Species)
Genus Synonyms:
=Amphitalamus Carpenter, 1864 (misspelling)
=Amphithalamus (Amphithalamus) Carpenter, 1864
=Amphithalamus (Notoscrobs) Powell, 1927
=Amphithalimus Carpenter, 1864 (misspelling)
=Amphithalmus Carpenter, 1864 (misspelling)
=Microfossa Laseron, 1950
=Notoscrobs Powell, 1927
=Notoscrobs (Microfossa) Laseron, 1950
=Obescrobs Iredale, 1955
=Rissoa (Amphithalamus) Carpenter, 1864
Synonymised Names:
=Notoscrobs (Microfossa) incidatus maoria Ponder, 1968
Details: Amphithalamus incidatus maoria (Ponder, 1968)
Size/Grows to:
Height 1.56mm, Width 0.91mm
Distribution:
North Island
Geographical Range:
AC
Notes:
Marine, Native - Endemic
Distribution Map
 
References and Publications
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.104)
  • Ponder, W.F. 1968 Notes on New Zealand prosobranchs with descriptions of new species and subspecies, Records of the Dominion Museum, 6(9) (p.118) 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