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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
Gastropoda - Opisthobranchia - Architectibranchia - Family: Aplustridae

Aplustridae

 

Genus: Hydatina

 
Hydatina albocincta (Van der Hoeven, 1839)
Height 42mm, Width 36mm
Northland east coast harbours. Also Japan to northern Australia [A]
Hydatina physis (Linnaeus, 1758)
Height 50mm, Width 42mm
Worldwide in warm seas. Northland east coast [K.A]

Genus: Micromelo

 
Micromelo undata Bruguière, 1792
Kermadec Islands and Norfolk Islands [K.]