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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 =
N =
North Island
S =
South Island
E =
I =
Gastropoda - Caenogastropoda - Neogastropoda - Family: Cystiscidae

Cystiscidae: Cystiscinae


Genus: Cystiscus

Cystiscus vidae Dell, 1956
Height 2.4mm, Width 1.7mm
Off Three Kings Islands. Off eastern North Island and Queen Charlotte Sound [ACE.]

Cystiscidae: Persiculinae


Genus: Gibberula

Gibberula ficula (Murdoch & Suter, 1906)
Height 3.5mm, Width 2.2mm
Off Three Kings Islands to Foveaux Strait. From 10 to over 180 metres [ACFE.]
Gibberula hardingae (Dell, 1956)
Height 4.5mm, Width 3.2mm
Cook Strait, 110 to 150 metres [CE.]

Cystiscidae: Granulininae


Genus: Granulina

Kermadec Islands [K.]

Genus: Pugnus

Pugnus parvus Hedley, 1896
Height 1.5-2.0mm, Readily distinguished by its parallel-sided shape and spiral sculpture
Queensland to East Tasmania, Kermadec Islands [K.]