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Key to 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 approxomation 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
Bivalvia - Palaeoheterodonta - Unionoida - Family: Hyriidae

Hyriidae: Hyridellinae

 

Genus: Echyridella

 
Echyridella aucklandica (Gray, 1843) (=delli McMichael & Hiscock, =lucasi Suter, =websteri Simpson)
Height 47mm, Length 96mm, Freshwater Mussel
North Island. From Kaeo in the north, Auckland, Waikato to Wanganui and Lake Wairarapa. South Island, from Lake Manapouri to Lake Hauroko [FW.N.S.E.]
Echyridella menziesii (Gray, 1843) (=depauperata Hutton, =acuta Suter, =hochstetteri Dunker)
Freshwater Mussel
North and South Island [FW.N.S.E.]
Echyridella onekaka Fenwick & Marshall, 2006
Freshwater Mussel
South Island. S of Collingwood [FW.S.E.]