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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 - Caenogastropoda - Ptenoglossa - Family: Janthinidae

Janthinidae

 

Genus: Janthina

 
Janthina exigua (Lamarck, 1822)
Height 23mm, Width 21mm, Strong and widely spaced growth ridges Violet Snail
Pelagic. Commonly washed ashore on west coast beaches [ACFM]
Janthina globosa Swainson, 1826
Height 32mm, Width 26mm, Violet Snail
Pelagic. Occasionally washed ashore on Northland east coast beaches [A]
Janthina janthina (Linnaeus, 1758) (= violacea Röding)
Height 38mm, Width 40mm, Violet Snail
World wide. Pelagic [ACFM]
Janthina umbilicata d'Orbigny, 1840
Height 16mm, Width 15mm, Fine and closely spaced growth ridges
Pelagic. Kermadec Islands and Northern NZ [K.A]

Genus: Recluzia

 
Recluzia rollandiana Petit de la Saussaye, 1853
Height 37mm, Width 26mm
Washed ashore Northland to Bay of Plenty [K.A]