Species Images
Commonly washes up on ocean beaches. 25mm
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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 =
E =
I =

Tawera spissa (Deshayes, 1835)

Classification:Mollusca (Phylum) > Bivalvia (Class) > Heterodonta (Subclass) > Venerida (Order) > Veneroidea (Superfamily) > Veneridae (Family) > Chioninae (Subfamily) > Tawera (Genus)
Size/Grows to:Width 27mm, Height 22mm
Synonyms:(=Plurigens Finlay)
Distribution:North, South, Stewart and Chatham Islands. Common on sandy beaches
Geographical Range:[ACFM]
References and Publications:
  • Eagle, M.K. Dec/2014: Tawera spissa (Bivalvia) Predation by Astropecten polyacanthus (Asteroidea) in Northland, New Zealand, Poirieria, 38 (p.28)
  • Marshall, B.A., Spencer, H.G. 2013: Comments on some taxonomic changes affecting marine Bivalvia of the New Zealand region recently introduced in Huber's Compendium of bivalves, with some additional taxonomic changes, Molluscan Research, 33(1) (p.45)
  • Beu, A.G. 2004: Marine Mollusca of oxygen isotope stages of the last 2 million years in New Zealand. Part 1: Revised generic positions and recognition of warm-water and cool-water migrants, Journal of the Royal Society of New Zealand, 34 (p.181)
  • Cumber, R.A. Nov/1983: Colour patterns of Tawera spissa (Deshayes, 1835) (Veneridae) in the Far North, Poirieria, 13(2)
  • Powell, A.W.B. 1979: New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.424)

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