Species Images
Washed up in the Far North. 16mm
Recently Viewed
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 =

Psilaxis oxytropis (A.Adams, 1855)

Classification:Mollusca (Phylum) > Gastropoda (Class) > Heterobranchia (Subclass) > Architectonicoidea (Superfamily) > Architectonicidae (Family) > Psilaxis (Genus)
Size/Grows to:Height 12mm, Width 16mm
Distribution:Northland east coast to East Cape. Also central and western Pacific, New Caledonia
Geographical Range:[K.A]
Larger protoconch than Psilaxis radiatus
References and Publications:
  • Spurgeon, A.M., Burch, K.W., Carson, K., Walton, K., Plaisted, J. Nov/2017: Notes on NZ Collected Species, Cookia, 29 (p.13)
  • Brook, F.J., Marshall, B.A. 1998: The coastal molluscan fauna of the northern Kermadec Islands, southwest Pacific Ocean, Journal of the Royal Society of New Zealand, 28 (p.229)
  • Bieler, R. 1993: Architectonicidae of the Indo-Pacific (Mollusca, Gastropoda), Abhandlungen des Naturwissenschaftlichen Vereins in Hamburg (NF), 30 (p.125)
  • Powell, A.W.B. 1979: New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.248)

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