• A highly variable species, but typically heavy-bodied with a large rounded head.
• Often mistaken for “water moccasins” which do not occur in Maryland.
• They have a back pattern of black to reddish-brown blotches which may form crossbands.
• Older individuals may appear one dark color, but close examination should reveal some blotches.
• Reddish-brown to orange-brown “half-moons” on a creamy yellow to pink belly.
• Keeled scales.
• Young are strongly patterned black on a pale gray or light brown background.

Close-up Photo of Common Watersnake
courtesy of John White