small pygmy rattlesnake
pygmy rattlesnake found in moist areas from the Great Lakes to Mexico; feeds on mice and small amphibians
The rattlesnake Sistrurus catenatus (formerly Crotalinus catenatus) in the family Viperidae, found in three subspecies.
The name likely comes from the French Mississague, which was derived from the Ojibwe word misiza:gi: meaning "inhabitant of the great river mouth." This refers specifically to the Mississagi River in Ontario, Canada.