Underside of adult female blue crab, called sook by watermen. Note also
red-tipped claws. Both design of underbody and color of claws differentiate
male blue crab from female blue crab.
Image ID: line4166, NOAA's America's Coastlines Collection
Location: Maryland, Chesapeake Bay
Photo Date: 2008 July 20
Photographer: Mary Hollinger, NOAA/NESDIS/NODC (ret.)
• High Resolution Photo Available