title for learn-about section on whelks & relatives in A SNAIL'S ODYSSEY
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photograph of morphs of whelks Nucella lamellosa from ThumbBay, Knight Island, Alaska, taken by Trevor Kinkaid, Department of Zoology, University of Washington, Seattle
18. Thumb Bay, Knight Island, Alaska  This morph is characterised by extreme spire length and close-set imbrications (sculpturing).  Colours are graded from brown to white.

 



 

 

 

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