Nerodia floridana, the Florida green watersnake;
Lake county, Florida (01 March 2015).
My nickname for this species is The Beefcake. An old friend liked to call it The Blockhead. I think both are apt. This is an adult Florida green watersnake, a very large and quite robust species of non-venomous watersnake common throughout Florida. The largest Nerodia native to the United States, the Florida green watersnake maxes out around four and a half feet in length. Most of the ones I encounter aren’t quite that long, of course, but what they may lack in length they make up for in girth. As far as non-venomous species are concerned, this is a fairly robust and beefy species. They also sport rather heavy, block-like heads, as you can see here. Like all Nerodia watersnakes, this is a non-aggressive species.