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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.
Kermadec Islands
Aupourian - Kaipara Harbour, north around North Cape, encompassing the Three Kings Islands and south to East Cape
Cookian - Lower North Island and the northern part of the South Island
Forsterian - Otago, Fiordland and Stewart Island
Moriorian - Chatham Islands, Pitt Island
Antipodean - Subantarctic Islands of New Zealand
FW =
L =
E =
I =
Gastropoda - Pulmonata - Basommatophora - Family: Siphonariidae



Genus: Siphonaria

Siphonaria australis Quoy & Gaimard, 1833 (=zelandica of authors, =cookiana Suter)
Length 27mm, Width 21mm, Siphon Limpet. Endemic
Throughout NZ, including Stewart, Chatham and Snares Islands [ACFME.]
Siphonaria propria Jenkins, 1983 (=cookiana of authors)
Length 13mm, Width 10mm, Siphon Limpet. Endemic
North, South, Stewart and Chatham Islands [ACFME.]
Siphonaria raoulensis Oliver, 1915
Kermadec Islands [K.E.]

Genus: Siphonaria (Benhamina)

Siphonaria (Benhamina) obliquata (G.B.Sowerby I, 1825)
Length 65mm, Width 44mm, Siphon Limpet. Endemic
Cook Strait southwards. Stewart and Auckland Islands [CFAnE.]

Genus: Siphonaria (Kerguelenella)

Length 27mm, Width 19mm, Height 9mm, Endemic. Apex varying from between the posterior fourth and the posterior margin, or even beyond
Subantarctic Islands. Auckland, Campbell and Antipodes Islands [FAnE.]
Length 16mm, Width 10mm, Height 5mm, Endemic. Apex within margin of lip
Macquarie Islands. Also Straits of Magellan, Patagonia, Falklands, South Georgia [AnE.]
Length 17mm, Width 12mm, Height 7mm, Endemic. Apex projecting beyond margin of lip
Stewart Island, Snares, Bounty Islands. On shaded rock faces near high tide level [FAnE.]

Genus: Williamia

Williamia radiata nutata (Hedley, 1908) (=kermadecensis Iredale)
Height 7mm, Width 5mm
Northland NZ and Kermadec Islands [K.A]