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Taxonomy
Family:
TATEIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Littorinimorpha (Order)
> Truncatelloidea (Superfamily)
> Tateidae (Family)
> Opacuincola (Genus)
> caeca (Species)
Images: Opacuincola caeca Ponder, 1966
Holotype, collected 1 Aug 1964 Gorge Creek Cave, S of East Takaka, Nelson, NZ (MA71338). ~2.2mm. © Auckland Museum (CC-BY)
Collected inside Cottage Cave, East Takaka, NZ. 2.66mm
Collected inside Cottage Cave, East Takaka, NZ. 2.66mm
Taxonomy
Family:
TATEIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Littorinimorpha (Order)
> Truncatelloidea (Superfamily)
> Tateidae (Family)
> Opacuincola (Genus)
> caeca (Species)
Details: Opacuincola caeca Ponder, 1966
Size/Grows to:
Height 2.24mm, Width 1.84mm
Distribution:
East Takaka, Nelson, South Island
Geographical Range:
Fw.S.
Notes:
Freshwater, Native - Endemic, From cave streams
Distribution Map
 
References and Publications
  • Cresswell, P.L. Nov/2020 New Zealand Tateids, Cookia, 32 (p.5)
  • Haase, M. 2008 The radiation of hydrobiid gastropods in New Zealand: a revision including the description of new species based on morphology and mtDNA sequence information, Systematics and Biodiversity, 6(1) (p.118)
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.124)
  • Ponder, W.F. 1966 On a subterranean snail and a tornid from New Zealand, Journal of the Malacological Society of Australia, 10 (p.35) Original Description

Key to Geographical Ranges
NZ Map showing 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
R =
Recent
Sf =
Subfossil
Fo =
Fossil
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