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Release 40.00 went live 14th January, 2017 - 1st post-catastrophe!

Calliostoma ligatum

(Gould, A.A., 1849) Western Ribbed/Western Ridged/Costate/Blue Top Shell Shell size 15 - 33 mm Alaska - S California, USA
Taxonomic Information
open bookPage/Plate
Proc. Boston Soc. Nat. Hist.Vol. 3, p 91
Suprag. Class. Trochacean GastropodsFig. 68D
Encyclopedia of Marine Gastropodsp 40/10
Collector's guide to Seashells of the Worldp 38/18
Compendium of Seashellsp 37/1.2
Audubon - Field Guide to North American ShellsPl. 255; 376
Intertidal Univalves of British Columbiap 29
cameraImage Acknowledgments
1 Smithsonian National Museum of Natural History
2 Daniel Pellegrini
3 Russell Webb
4 Olivier Caro
5 Peter Egerton
6 @ Sharpe Shells
7 Lowtide Shells