pl23_fizh2057.jpg
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https://www.noaa.gov/media/digital-library-photo/pl23fizh2057jpgDescription
Molting. the blue crab shown here has just begun to back out of its old shell.The new shell will stretch and smooth out as the crab absorbs water and willend up about 25 % larger than the former shell.
Credit
NOAA Central Library Historical Fisheries Collection
Photographer
D. W. Windley BCF
Collection
Historic Fisheries