Species Images
Waipu, Northland. 25mm
orange form - Bay of Islands, on oysters. 22mm
Common on mud and sandy flats in sheltered waters
A group devouring a dead bivalve. Parengarenga Harbour, Far North
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.
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
E =
Endemic
I =
Introduced

Cominella (Cominista) glandiformis (Reeve, 1847)

Classification:Gastropoda - Caenogastropoda - Neogastropoda
Family:BUCCINULIDAE
Size/Grows to:Height 24mm, Width 13mm
Distribution:North, South, Stewart and Chatham Islands
Geographical Range:ACFM
Notes:
Mud Whelk. Endemic
References and Publications:
  • Morley, M.S. Oct/2013: In a Whorl with Cominella glandiformis, Poirieria, 37 (p.4)
  • Powell, A.W.B. 1979: New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.193)
  • Bimler, A. 1976: Effects of overcrowding on floating behaviour in the mud whelk Cominella glandiformis (Mollusca: Gastropoda), New Zealand Journal of Marine and Freshwater Research, 10(4) (p.715)

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