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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
Gastropoda - Vetigastropoda - Seguenziidae: Guttulinae
Seguenziidae: Guttulinae
 
Genus: Guttulamap >
Guttula galatheae Knudsen, 1964
Width 3.9mm, Height 4.2mm, Endemic
Kermadec Trench, 6660-6670 metres [K.A]
Genus: Sericogyramap >
Sericogyra metallica Marshall, 1988
Width 4.7mm, Height 4.4mm, Endemic
Eastern slope of Tasman Basin, 914-1463 metres [C]
Sericogyra periglenes Marshall, 1988
Width 6.6mm, Height 6.4mm, Endemic
Tasman Basin, alive in foraminiferal ooze, 1760-1799 metres [C]