Species List for Family: Triphoridae
Mollusca (Phylum) > Gastropoda (Class) > Caenogastropoda (Subclass) > Ptenoglossa (Order) > Triphoroidea (Superfamily) > Triphoridae (Family)
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Family: Triphoridae
Bouchetriphora pallida (Pease, 1870)
(=infelix Webster)
Height 8mm, Width 2mm, Marine, Sinistral
Upper and central North Island KAC- Cautor lutea (Suter, 1908)
Height 7mm, Width 2.25mm, Marine, Endemic
South Island, Stewart Island, Snares, Auckland and Bounty Islands FAnE. - Monophorus fascelinus (Suter, 1908)
Height 6mm, Marine, Endemic, Sinistral
North, South and subantarctic Islands ACFAnE. - Nototriphora aupouria (Powell, 1937)
Height 4mm, Width 1.5mm, Marine, Endemic, Sinistral
Off Three Kings Islands, Northland to Cook Strait KAE. - Sagenotriphora ampulla (Hedley, 1902)
Height 5mm, Width 1.75mm, Marine, Sinistral
North Island. Also New South Wales KAC 
Teretriphora huttoni (Suter, 1908)
Height 5mm, Width 1.5mm, Marine, Endemic, Sinistral
Southern South Islands. Stewart, Chatham, Snares and Bounty Islands FMAnE.- Metaxia duplicarinata (Powell, 1940)
Height 4mm, Marine, Endemic
Northland East Coast to Three Kings Islands AE. - Metaxia maoria Finlay, 1930
Height 4.5mm, Width 1.2mm, Marine, Endemic
Three Kings Islands to East Cape ACE. 
Metaxia solitaria Marshall, 1979
Height 5.6mm, Diameter 1.5mm, Marine, Endemic
NW of Three Kings Islands AE.
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 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