Quick Search
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 =
Bivalvia - Protobranchia - Nuculida - Family: Nuculidae

Nuculidae: Nuculinae


Genus: Austronucula

Height 1.7mm, Width 2.2mm, Thickness 1mm
Tasman Sea, off West Nelson [CE.]
Austronucula schencki Powell, 1939
Height 1.0mm, Width 1.15mm
Stewart Island and Snares Islands, also recently recorded from the Chatham Islands [FMAnE.]

Genus: Linucula

Linucula hartvigiana (Dohrn, 1864)
Height 7mm, Width 8mm, Thickness 5.8mm
Throughout NZ, Chathams, Auckland and Campbell Islands [ACFMAnE.]
Linucula recens Dell, 1956
Height 3.5mm, Width 4mm, Thickness 2mm
Off North, South Islands to Otago, Tasman Sea and Chatham Rise [ACFME.]

Genus: Nucula

Nucula certisinus Finlay, 1930
Height 1.6mm, Width 1.8mm
Doubtless Bay, Northland [AE.]
Nucula nitidula A.Adams, 1856
Height 8mm, Width 8mm, Thickness 4.5mm
Throughout NZ. Stewart, Snares and Chatham Islands [ACFMAnE.]
Nucula nitidulaformis Powell, 1971
Height 4.5mm, Width 4.8mm, Thickness 2.9mm
Bay of Plenty. North Island [A]
Nucula rossiana Finlay, 1930
Height 5mm, Width 5.8mm
Fiordland, Stewart, Auckland, Campbell and Antipodes Islands. Under stones at low tide to around 35 metres [FMAnE.]

Genus: Nucula (Lamellinucula)

Height 1.8mm, Width 2mm
South Island, Fiordland to Otago, Stewart, Snares and Chatham Islands [FME.]

Genus: Pronucula

Pronucula bollonsi Powell, 1955
Height 2mm, Width 2.3mm
Off Auckland Islands, 10-180 metres [AnE.]
Kermadec Islands [K.]
Pronucula maoria Powell, 1937
Height 1.5mm, Width 1.8mm, Thickness 1.1mm
Off Three Kings Islands [AE.]
Pronucula mesembrina Hedley, 1916
Height 1.7mm, Width 2.2mm
Macquarie Island [AnE.]
Pronucula tenuis Powell, 1927
Height 1mm, Width 1.5mm, Thickness 0.8mm
North and South Island, South West Otago. Off Snares and Antipodes Islands [ACFAnE.]

Genus: Varinucula

Varinucula gallinacea (Finlay, 1930)
Height 8.7mm, Width 9.8mm, Thickness 4mm
North, South and Chatham Islands [ACFME.]

Nuculidae: Nuculominae


Genus: Ennucula

Ennucula strangei (A.Adams, 1856)
Height 11mm, Width 13mm
North, South, Stewart Islands and Chatham Rise [ACFME.]
Height 4.8mm, Width 5.6mm
East Cape to Chatham Rise. Cook Strait and Challenger Plateau [CME.]