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Taxonomy
Family:
ANABATHRIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Littorinimorpha (Order)
> Truncatelloidea (Superfamily)
> Anabathridae (Family)
> Amphithalamus (Genus)
> ornatus (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:
=Amphithalamus (Notoscrobs) ornatus (Powell, 1927) accepted, alternate representation
=Notoscrobs ornatus Powell, 1927
Images: Amphithalamus ornatus (Powell, 1927)
Holotype, collected in 9-11 metres, off Mangonui Heads, Northland, NZ (MA72106). © Auckland Museum (CC-BY)
Taxonomy
Family:
ANABATHRIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Littorinimorpha (Order)
> Truncatelloidea (Superfamily)
> Anabathridae (Family)
> Amphithalamus (Genus)
> ornatus (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:
=Amphithalamus (Notoscrobs) ornatus (Powell, 1927) accepted, alternate representation
=Notoscrobs ornatus Powell, 1927
Details: Amphithalamus ornatus (Powell, 1927)
Size/Grows to:
Height 1.3mm, Width 0.8mm
Distribution:
North-eastern North Island as far south as Mayor Island, from 4-50m
Type Data:
  • 9-11 metres, off Mangonui Head, NZ, (holotype)
Notes:
Marine, Native - Endemic
View Distribution Map
References and Publications
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.104)
  • Powell, A.W.B. 1927 The genetic relationships of Australasian rissoids. Part 1. Descriptions of new recent genera and species from New Zealand and the Kermadec Islands, Transactions and Proceedings of the New Zealand Institute, 57 (p.548) Original Description

NZ Geographical Regions
Key to symbols used in Checklist.
Fw =
Freshwater
L =
Land
N =
North Island
S =
South Island
R =
Recent
Sf =
Subfossil
Fo =
Fossil
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