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Taxonomy
Family:
RISSOIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Littorinimorpha (Order)
> Rissooidea (Superfamily)
> Rissoidae (Family)
> Alvania (Genus)
> pinguis (Species)
Genus Synonyms:
=Alvania (Linemera) Finlay, 1924 accepted, alternate representation
Synonymised Names:
=Alvania (Linemera) pinguis (Webster, 1906) accepted, alternate representation
=Rissoa pingue Webster, 1906
Images: Alvania pinguis (Webster, 1906)
Holotype of Rissoa pingue, collected 22 Jan 1904, E of Great Barrier Island, Hauraki Gulf, NZ (M.001756). 2mm. © Museum of New Zealand Te Papa Tongarewa (CC-BY-NC-ND)
Taxonomy
Family:
RISSOIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Littorinimorpha (Order)
> Rissooidea (Superfamily)
> Rissoidae (Family)
> Alvania (Genus)
> pinguis (Species)
Genus Synonyms:
=Alvania (Linemera) Finlay, 1924 accepted, alternate representation
Synonymised Names:
=Alvania (Linemera) pinguis (Webster, 1906) accepted, alternate representation
=Rissoa pingue Webster, 1906
Details: Alvania pinguis (Webster, 1906)
Size/Grows to:
Height 2mm, Width 1.25mm
Distribution:
Northland. Off Great Barrier Island, 200 metres
Geographical Range:
A
Notes:
Marine, Native - Endemic
Distribution Map
 
References and Publications
  • Ponder, W.F. 1985 A review of the genera of the Rissoidae (Mollusca: Mesogastropoda: Rissoacea), Records of the Australian Museum (p.45)
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.97)
  • Webster, W.H. 1906 Results of dredging on the continental shelf of New Zealand., Transactions of the New Zealand Institute, 38 (p.307) 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