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Species List for Genus: Cosa
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Mollusca (Phylum) > Bivalvia (Class) > Pteriomorphia (Subclass) > Arcida (Order) > Limopsoidea (Superfamily) > Philobryidae (Family) > Cosa (Genus)
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  • Genus: Cosa

  • Cosa costata (F. Bernard, 1896)
    Width 2.5mm, Height 3.2mm
    Marine, Endemic
    Throughout southern NZ and islands. Shallow water to about 180 metres
    CFMAnE.
  • Cosa dispar Powell, 1937
    Marine, Endemic
    Off Three Kings Islands, trawled
    AE.
  • Cosa filholi (F. Bernard, 1897)
    Width 2.6mm, Height 3.3mm
    Marine, Endemic
    North, South, Stewart and Chatham Islands
    CFMAnE.
  • Cosa laevicostata Powell, 1933
    Width 1.8mm, Height 2.3mm
    Marine, Endemic
    Far North, in shell sand
    AE.
  • Cosa serratocostata Powell, 1933
    Height 2.8mm, Width 2.3mm
    Marine, Endemic
    Off Three Kings Islands, 475 metres. Far North and Northland, in shell sand
    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