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Taxonomy
Family: Subfamily:
NATICIDAE: POLINICINAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Littorinimorpha (Order)
> Naticoidea (Superfamily)
> Naticidae (Family)
> Polinicinae (Subfamily)
> Polinices (Genus)
> tawhitirahia (Species)
Images: Polinices tawhitirahia Powell, 1965
From off Northland, NZ. 26mm. © rights reserved
From off Northland, NZ. 26mm. © rights reserved
In shell drift, Far North, NZ. 30mm. © rights reserved
Holotype, collected Feb 1965, 37 metres, Poor Knights Islands, Northland, NZ (MA71242). © Auckland Museum (CC-BY)
Holotype, collected Feb 1965, 37 metres, Poor Knights Islands, Northland, NZ (MA71242). © Auckland Museum (CC-BY)
Holotype, collected Feb 1965, 37 metres, Poor Knights Islands, Northland, NZ (MA71242). © Auckland Museum (CC-BY)
Taxonomy
Family: Subfamily:
NATICIDAE: POLINICINAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Littorinimorpha (Order)
> Naticoidea (Superfamily)
> Naticidae (Family)
> Polinicinae (Subfamily)
> Polinices (Genus)
> tawhitirahia (Species)
Details: Polinices tawhitirahia Powell, 1965
Size/Grows to:
Height 36mm, Width 32mm
Distribution:
North-eastern North Island as far south as Poor Knights Islands. Also Norfolk Islands, from 15-46m
Type Data:
  • 37 metres, Tawhiti Rahi Island, Poor Knights Islands, NZ, (holotype)
Notes:
Marine, Native - Non-endemic
Description:
Heavy shell with thick callus that completely fills umbilicus. Colourless periostracum, fewer protoconch whorls than Polinices putealis, and a broader first protoconch whorl
Marshall, B.A. 2001 Polinices update 2, Australasian Shell News, 112 (p.7)
View Distribution Map
References and Publications
  • Marshall, B.A. 2001 Polinices update 2, Australasian Shell News, 112 (p.7)
  • Brook, F.J., Marshall, B.A. 1998 The coastal molluscan fauna of the northern Kermadec Islands, southwest Pacific Ocean, Journal of the Royal Society of New Zealand, 28 (p.220)
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.155)
  • Powell, A.W.B. 1976 On the considerable influx of warm water molluscs that have invaded northern New Zealand waters within recent years, Records of the Auckland Institute and Museum, 13 (p.147)
  • Sep/1967 Polinices tawhitirahia, Poirieria, 4(2)
  • Powell, A.W.B. 1967 New Zealand Molluscan Systematics with Descriptions of New Species: Part 6, Records of the Auckland Institute and Museum, 6(3) (p.185)
  • Powell, A.W.B. 1965 New Zealand Molluscan Systematics with Descriptions of New Species: Part 5, Records of the Auckland Institute and Museum, 6(2) (p.163) Original Description

NZ Geographical Regions
Key to symbols used in Checklist.
Fw =
Freshwater
L =
Land
N =
North Island
S =
South Island
R =
Recent
Sf =
Subfossil
Fo =
Fossil
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