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Apologies for the problems which may have been evident between 6:00, 17/5/18 and 10:15, 18/5/18 UK Time. I think that they are fixed now.

Umbonium zelandicum

Adams, A., 1854 Zealandic Button Top Shell; Wheel Shell Shell size 10 - 20 mm Ninety Mile Beach, North Island, New Zealand
Taxonomic Information
ClassGASTROPODA VETIGASTROPODA
OrderTROCHIDA
SuperFamilyTROCHOIDEA
FamilyTROCHIDAE UMBONIINAE
open bookPage/Plate
Encyclopedia of Marine Gastropodsp 37/13
Compendium of Seashellsp 43/4.3
Collector's guide to Seashells of the Worldp 40/10
cameraImage Acknowledgments
1 unattributed/auction
2 Femorale
3 Femorale
4 Guido Poppe
5 Guido Poppe
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