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Janthina umbilicata d'Orbigny, 1840Species Images
From Tom Bowling Bay, Far North. 16mm
Washed up on northern beaches. 15mm
Janthina umbilicata d'Orbigny, 1840
Classification:
Mollusca (Phylum) > Gastropoda (Class) > Caenogastropoda (Subclass) > Ptenoglossa (Order) > Epitonioidea (Superfamily) > Epitoniidae (Family) > Janthina (Genus) > umbilicata (Species)
Family:
EPITONIIDAE
Size/Grows to:
Height 16mm, Width 15mm
Distribution:
Kermadec Islands and Northern NZ
Geographical Range:
KA
Notes:
Marine, Pelagic, feeds mainly on colonial cnidarians (Physalia, Velella, Porpita). Fine and closely spaced growth ridges
Distribution Map
 
References and Publications

Key to Geographical Ranges
NZ Map showing 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 approximation 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
R =
Recent
Sf =
Subfossil
Fo =
Fossil