Leopard Frog (maybe Rana pipiens) 9/2/11 D&M MD

neat little guide to Leopard Frogs of this area
http://www.njfishandwildlife.com/ensp/pdf/leopardfrog_guide.pdf
update 4/15/15: last October, 2014, a new species of Leopard Frog was described (Rana kauffeldi):
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0108213