Quick Search
To Advanced Search
Taxonomy
Family: Subfamily:
PHOLADIDAE: MARTESIINAE
Full Classification:
Mollusca (Phylum)
> Bivalvia (Class)
> Autobranchia (Subclass)
> Heteroconchia (Infraclass)
> Euhetrodonta (Subterclass)
> Imparidentia (Superorder)
> Myida (Order)
> Pholadoidea (Superfamily)
> Pholadidae (Family)
> Martesiinae (Subfamily)
> Pholadidea (Genus)
> tridens (Species)
Synonymised Names:
=Talona tridens Gray, 1843 (original combination)
Images: Pholadidea tridens (Gray, 1843)
Leigh, Northland. Dead around rocks at low tide. 27mm
Living in soft mudstone at low tide, Cissy Bay, Marlborough Sounds, NZ. 20-25mm
Lives boring into soft rock in the intertidal zone, north Auckland, NZ. 18mm
Taxonomy
Family: Subfamily:
PHOLADIDAE: MARTESIINAE
Full Classification:
Mollusca (Phylum)
> Bivalvia (Class)
> Autobranchia (Subclass)
> Heteroconchia (Infraclass)
> Euhetrodonta (Subterclass)
> Imparidentia (Superorder)
> Myida (Order)
> Pholadoidea (Superfamily)
> Pholadidae (Family)
> Martesiinae (Subfamily)
> Pholadidea (Genus)
> tridens (Species)
Synonymised Names:
=Talona tridens Gray, 1843 (original combination)
Details: Pholadidea tridens (Gray, 1843)
Size/Grows to:
Length 30mm, Height 14mm
Distribution:
North Island, northern and far southern South Island, and Chatham Islands. Intertidal and immediate sublittoral
Geographical Range:
ACM
Notes:
Marine, Native - Endemic
Distribution Map
 
References and Publications
  • Stevenson, A.G. Nov/2004 Collecting Rock Borers in New Zealand, Cookia, 16 (p.27)
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.429)
  • Gray, J.E. 1843 Catalogue of the species of Mollusca and their shells, which have hitherto been recorded as found at New Zealand, with the description of some lately discovered species, Travels in New Zealand; with contributions to the geography, geology, botany, and natural history of that country, 2 (p.254) 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
Recently Viewed