Species Images
From Tom Bowling Bay, Far North. 16mm
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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
E =
Endemic
I =
Introduced

Janthina umbilicata d'Orbigny, 1840

Classification:Gastropoda - Caenogastropoda - Ptenoglossa
Family:EPITONIIDAE
Size/Grows to:Height 16mm, Width 15mm
Distribution:Pelagic. Kermadec Islands and Northern NZ
Geographical Range:K.A
Notes:
Fine and closely spaced growth ridges
References and Publications:
  • Beu, A.G. 2017: Evolution of Janthina and Recluzia (Mollusca: Gastropoda: Epitoniidae), Records of the Australian Museum, 63(3) (p.196)
  • Oliver, W.R.B. 1914: The Mollusca of the Kermadec Islands, Transactions and Proceedings of the New Zealand Institute, 47 (p.525)

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