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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 =

Isoconcha integra (Hedley, 1907)

Classification:Bivalvia - Heterodonta - Veneroida
Size/Grows to:Width 6mm, Height 3.5mm
Synonyms:(=Benthoquetia Iredale,1930)
Distribution:Southern North Island, South Island and Chatham Rise. Also South Australia to New South Wales. Commensal, attached to the external surface of the holothurian Mesothuria lactea
Geographical Range:CFM
References and Publications:
  • Powell, A.W.B. 1979: New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.406)
  • Hedley, C. 1907: The results of deep-sea investigation in the Tasman Sea. II. The expedition of the “Woy Woy”. 2. Mollusca from eight hundred fathoms, thirty-five miles east of Sydney, Records of the Australian Museum, 6(5) (p.364)

Note: Localities are approximate, and represent only some of the known localities for the species.

*2 © Museum of New Zealand Te Papa Tongarewa CC BY-NC-ND