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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

Rhytidarex johnsoni (Powell, 1948)

Classification:Gastropoda - Pulmonata - Stylommatophora
Family:RHYTIDIDAE
Size/Grows to:Length 22mm, Height 12mm
Distribution:Three Kings Islands
Geographical Range:L.N.E.
References and Publications:
  • Powell, A.W.B. 1979: New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.347)
  • Climo, F.M. 1977: A new higher classification of New Zealand Rhytididae (Mollusca: Pulmonata), Journal of the Royal Society of New Zealand, 7(1) (p.61)
  • Powell, A.W.B. 1948: Land Mollusca of the Three Kings Islands, Records of the Auckland Institute and Museum, 3 (p.281)

Note: Localities are approximate, and represent only some of the known localities for the species.