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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 - Heterobranchia - Family: Xylodisculidae

Xylodisculidae

 

Genus: Xylodiscula

 
Xylodiscula eximia Marshall, 1988
Width 1.95mm, Height 0.95mm
Off White Island, Bay of Plenty, 1075-1100 metres. Alive on wood [AE.]
 
Xylodiscula librata Marshall, 1988
Width 1.2mm
Off White Island, 1075-1100 metres [AE.]
 
Xylodiscula osteophila Marshall, 1994
Width 1.6mm
Off Mernoo Bank, Chatham Rise. On whale skull [CE.]