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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: Costellariidae



Genus: Austromitra

Austromitra angulata (Suter, 1908)
Height 4mm, Width 2mm
North Island to Cook Strait [ACE.]
Austromitra lawsi Finlay, 1930
Height 12mm, Width 4.6mm
South Island, off Cook Strait to Taiaroa Heads, Otago, and Fiordland [CFE.]
Austromitra planata (Hutton, 1885)
Northland to Coromandel [AE.]
Austromitra rubiginosa (Hutton, 1873) (=erecta Powell)
Height 11mm, Width 4.5mm
North, South, Stewart and Chatham Islands [ACFME.]
Austromitra zafra Powell, 1952
Height 5mm, Width 2.2mm
Off Bay of Plenty, North Island [AE.]

Genus: Vexillum (Costellaria)

Length 20mm
From the Red Sea to the Tonga Islands. Kermadec Islands [K.]
Height 6.4mm
From the Red Sea and the Persian Gulf to the Society and Hawaiin Islands. Kermadec Islands [K.]
Length 17mm
Off Raoul Island, Kermadec Islands [K.]
Length 46mm
From Red Sea and the Persian Gulf to New Britain and Queensland, Australia. Kermadec Islands [K.]