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Taxonomy
Family:
EATONIELLIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Littorinimorpha (Order)
> Cingulopsoidea (Superfamily)
> Eatoniellidae (Family)
> Eatoniella (Genus)
> olivacea (Species)
Genus Synonyms:
=Cerostraca W.R.B. Oliver, 1915
=Dardania Hutton, 1882
=Dardanula Iredale, 1915
=Eatonia E.A. Smith, 1875
=Eatoniella (Abscindostoma) Ponder, 1965
=Eatoniella (Albitoniella) Ponder, 1965
=Eatoniella (Albosabula) Ponder, 1965
=Eatoniella (Caveatoniella) Ponder, 1965
=Eatoniella (Cerostraca) W.R.B. Oliver, 1915
=Eatoniella (Dardaniopsis) Ponder, 1965
=Eatoniella (Dardanula) Iredale, 1915
=Eatoniella (Eatoniella) Dall, 1876
=Eatoniella (Pellax) Finlay, 1926
=Pellax Finlay, 1926
=Rissoina (Eatoniella) Dall, 1876
Synonymised Names:
=Dardania olivacea Hutton, 1882
=Dardanula olivacea (Hutton, 1882)
=Eatoniella (Dardanula) olivacea (Hutton, 1882)
=Eatoniella (Eatoniella) olivacea (Hutton, 1882) accepted, alternate representation
=Rissoia (Sabanaea) annulata (Hutton, 1884)
=Rissoia annulata (Hutton, 1884)
=Rissoina annulata Hutton, 1884
=Rissoina annulata var. minor (Suter, 1898)
=Rissoina olivacea (Hutton, 1882)
Images: Eatoniella olivacea (Hutton, 1882)
Lectotype, collected Lyttelton, NZ (M.000153). 1.8mm. © Museum of New Zealand Te Papa Tongarewa (CC-BY-NC-ND)
Taxonomy
Family:
EATONIELLIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Littorinimorpha (Order)
> Cingulopsoidea (Superfamily)
> Eatoniellidae (Family)
> Eatoniella (Genus)
> olivacea (Species)
Genus Synonyms:
=Cerostraca W.R.B. Oliver, 1915
=Dardania Hutton, 1882
=Dardanula Iredale, 1915
=Eatonia E.A. Smith, 1875
=Eatoniella (Abscindostoma) Ponder, 1965
=Eatoniella (Albitoniella) Ponder, 1965
=Eatoniella (Albosabula) Ponder, 1965
=Eatoniella (Caveatoniella) Ponder, 1965
=Eatoniella (Cerostraca) W.R.B. Oliver, 1915
=Eatoniella (Dardaniopsis) Ponder, 1965
=Eatoniella (Dardanula) Iredale, 1915
=Eatoniella (Eatoniella) Dall, 1876
=Eatoniella (Pellax) Finlay, 1926
=Pellax Finlay, 1926
=Rissoina (Eatoniella) Dall, 1876
Synonymised Names:
=Dardania olivacea Hutton, 1882
=Dardanula olivacea (Hutton, 1882)
=Eatoniella (Dardanula) olivacea (Hutton, 1882)
=Eatoniella (Eatoniella) olivacea (Hutton, 1882) accepted, alternate representation
=Rissoia (Sabanaea) annulata (Hutton, 1884)
=Rissoia annulata (Hutton, 1884)
=Rissoina annulata Hutton, 1884
=Rissoina annulata var. minor (Suter, 1898)
=Rissoina olivacea (Hutton, 1882)
Details: Eatoniella olivacea (Hutton, 1882)
Size/Grows to:
Height 1.8mm, Width 1.0mm
Distribution:
North, South, Stewart, Auckland and Chatham Islands. On Corallina and Carpophyllum algae
Geographical Range:
ACFMAn
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.92)
  • Hutton, F.W. 1882 On a new genus of the Rissoinae, Transactions and Proceedings of the New Zealand Institute, 14(147) 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