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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 - 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.]