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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 =
E =
I =
Gastropoda - Caenogastropoda - Neogastropoda - Family: Marginellidae

Marginellidae: Marginellinae


Genus: Dentimargo

Dentimargo amoena (Suter, 1908)
Height 5mm, Width 2.8mm, Endemic
Off Ahipara, Northland. Off Snares Islands [AAnE.]
Dentimargo cairoma (Brookes, 1924)
Height 4.5mm, Width 2mm, Endemic
Northland to Cook Strait, and Chatham Islands [ACME.]
Dentimargo fusula (Murdoch & Suter, 1906)
Height 7mm, Width 3mm, Endemic
Northland to Bay of Plenty. Off Poor Knights Islands [AE.]
Dentimargo fusuloides (Dell, 1956)
Height 6.3mm, Width 3mm, Endemic
Off eastern Otago, 350-550 metres [FE.]
Dentimargo hebescens (Murdoch & Suter, 1906)
Height 3.8mm, Width 2mm, Endemic
Off northland east coast [AE.]
Dentimargo lurida (Suter, 1908)
Height 3mm, Width 1.5mm, Endemic
Fiordland to Foveaux Strait and Otago. Off Chathams, Snares, Antipodes and Auckland Islands [FMAnE.]
Dentimargo stewartiana (Suter, 1908)
Height 4.5mm, Width 2.3mm, Endemic
Stewart Island. Snares, Campbell and Auckland Islands [FAnE.]
Dentimargo subamoena (Powell, 1937)
Height 4mm, Width 2.5mm, Endemic
Off Three Kings Islands [AE.]
Dentimargo subfusula (Powell, 1932)
Height 4mm, Width 2.2mm, Endemic
Off Northland east coast [ACFME.]
Dentimargo wormaldi (Powell, 1971)
Height 9mm, Width 4.2mm, Endemic
Off Northland east coast [AE.]

Genus: Mesoginella

Mesoginella aupouria (Powell, 1937)
Height 4.3mm, Width 3mm, Endemic
Off Three Kings Islands [AE.]
Mesoginella cracens (Dell, 1956)
Height 4.5mm, Width 3mm, Endemic
Off eastern Otago, 475 - 650 metres [FE.]
Mesoginella ergastula (Dell, 1953)
Height 4mm, Width 2.7mm, Endemic
Chatham Rise [ME.]
Mesoginella judithae (Dell, 1956)
Height 5.5mm, Width 3.5mm, Endemic
Chatham Islands [ME.]
Mesoginella koma Marshall, 2004 (=pygmaea of authors not G.B.Sowerby II)
Height 7mm, Width 4.8mm, Endemic
Northland to Mahia [ACE.]
Mesoginella larochei (Powell, 1932)
Length 4mm, Width 2.2mm, Endemic
North Island. Far North to Wanganui and Mahia [AE.]
Mesoginella manawatawhia (Powell, 1937)
Height 6mm, Width 3.2mm, Endemic
Off Three Kings Islands [AE.]
Height 5mm, Width 3.2mm, Endemic
Off eastern Otago, 550 metres [FE.]
Mesoginella pisinna Marshall, 2004 (=tryphenensis Ponder not Powell)
Height 5.5mm, Endemic
North Island east coast, Three Kings Islands to Mahia [ACE.]
Height 4.8mm, Width 3mm, Endemic
Off Three Kings Islands [AE.]
Mesoginella tryphenensis (Powell, 1932)
Height 3.6mm, Width 2.2mm, Endemic
Northland east coast to East Cape [AE.]
Mesoginella vailei Powell, 1932
Height 8mm, Width 5mm, Endemic
Far North, Northland [AE.]

Genus: Ovaginella

Ovaginella maoria (Powell, 1937)
Height 7mm, Width 5mm, Endemic
Off Three Kings Islands 475 metres [AE.]
Ovaginella profunda (Suter, 1909)
Height 5.5mm, Width 3.5mm, Endemic
Off eastern Otago, 180 metres [FE.]

Genus: Serrata

Serrata albescens Hutton, 1873
Height 5mm, Width 2.5mm, Endemic
Stewart Island, Foveaux Strait, Snares and Bounty Islands [FAnE.]
Serrata fasciata (G.B.Sowerby II, 1846) (=mustelina of authors not Angas)
Height 8mm, Width 4mm, Endemic
Three Kings Islands, Far North, and north-eastern North Island to Mahia Peninsula, under stones intertidally to about 22 metres [ACE.]
Serrata maoriana (Powell, 1932)
Height 10mm, Width 4.5mm, Endemic
Off Northland east coast to East Cape [AE.]
Height 3mm, Width 1.7mm, Endemic
Otago to Foveaux Strait, Snares, Auckland and Chatham Islands [FMAnE.]
Serrata plicatula (Suter, 1909)
Height 3mm, Width 1.7mm, Endemic
Auckland Islands [AnE.]
Serrata raoulica Marshall, 2004 (=sp. aff. mustelina of authors)
Kermadec Islands [K.E.]