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Species List for Genus: Powellisetia
Mollusca (Phylum) > Gastropoda (Class) > Caenogastropoda (Subclass) > Littorinimorpha (Order) > Rissooidea (Superfamily) > Rissoidae (Family) > Rissoinae (Subfamily) > Powellisetia (Genus)
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  • Genus: Powellisetia

  • Powellisetia australis (Watson, 1886)
    (=Ovirissa nivosa of authors not Powell)
    Height 2.5mm, Width 1.45mm, Marine
    Sub-Antarctic Islands, deep An
  • Powellisetia bilirata Ponder, 1965
    Height 1.05mm, Width 0.675mm, Marine, Endemic
    Northland AE.
  • Powellisetia cf. deserta (E.A.Smith, 1907)
    (=Eatoniella kerguelensis Tomlin)
    Marine, Endemic
    Macquarie Island. Sub-Antarctic Islands, deep AnE.
  • Powellisetia crassilabrum (Powell, 1940)
    Height 1.29mm, Width 1.09mm, Marine, Endemic
    Northland AE.
  • Powellisetia gradata (Suter, 1908)
    (=Anabathron gradatum Suter, 1908, =Notosetia fairchildi Powell, 1933)
    Height 1.65mm, Width 1.1mm, Marine, Endemic
    Off Otago, Stewart, Snares and Bounty Islands FAnE.
  • Powellisetia lineata (Smith, 1962)
    Height 1.41mm, Width 0.96mm, Marine, Endemic, Low tide in algae
    Stewart Island FE.
  • Powellisetia microstriata (Murdoch, 1905)
    Height 2.07mm, Width 1.11mm, Marine, Endemic
    Deep water off South Island, Snares and Bounty Islands FAnE.
  • Powellisetia porcellana (Suter, 1908)
    Height 1.8mm, Width 1.3mm, Marine, Endemic
    Off south of the South Island and Snares Islands FAnE.
  • Powellisetia porcellanoides (Powell, 1937)
    Height 1.35mm, Width 0.88mm, Marine, Endemic
    Off Three Kings Islands to Mayor Island, Bay of Plenty AE.
  • Powellisetia retusa (Powell, 1927)
    Height 1.8mm, Width 1.0mm, Marine, Endemic
    South of South Island, Stewart, Snares, Auckland, Bounty and Chatham Islands FMAnE.
  • Powellisetia subgradata (Powell, 1937)
    Height 1.7mm, Width 1.1mm, Marine, Endemic
    Off Three Kings Islands to Mayor Island, Bay of Plenty AE.
  • Powellisetia subtenuis (Powell, 1937)
    Height 1.2mm, Width 0.8mm, Marine, Endemic
    Throughout NZ ACFMAnE.
  • Powellisetia tenuisculpta (Powell, 1933)
    Height 1.25mm, Width 0.75mm, Marine, Endemic
    South of South Island. Stewart and Bounty Islands FAnE.
  • Powellisetia unicarinata (Powell, 1930)
    Height 1.19mm, Width 0.59mm, Marine, Endemic
    Northland to Bay of Plenty AE.
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
E =
Endemic
I =
Introduced
R =
Recent
Sf =
Subfossil
Fo =
Fossil