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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: Olividae



Genus: Amalda (Baryspira)

Amalda (Baryspira) australis (G.B.Sowerby I, 1830)
Height 40mm, Width 18mm, Olive
North Island and northern part of South Island. From low tide, in sand [ACE.]
Amalda (Baryspira) bathamae (Dell, 1956) (=bathami Dell)
Height 25mm, Width 13mm
Off eastern Otago, South Island [FE.]
Amalda (Baryspira) depressa (G.B.Sowerby II, 1859)
Height 20mm, Width 12mm
North Island and northern part of South Island [ACE.]
Amalda (Baryspira) mucronata (G.B.Sowerby I, 1830)
Height 55mm, Width 24mm, Olive
North Island and northern part of South Island [ACE.]
Kermadec Islands. Dead specimens washed up on beaches, and to 274 metres [K.AE.]
Fiordland [FE.]

Genus: Amalda (Gracilispira)

Height 9.2mm, Width 4.2mm
Southern South Island, Auckland and Chatham Islands. Trawled 350-600 metres [FMAnE.]
Height 17mm, Width 8mm
NE North Island, shallow [AE.]
Amalda (Gracilispira) novaezelandiae (G.B.Sowerby II, 1859)
Height 15mm, Width 6mm
North Island and north part of South Island [ACME.]