English English black snake English Pantherophis obsoletus Black Rat Snakes black rat snake black rat snakes Black Rat snake English Black Rat Snake English English Black Rat Snake English black rat snake Pantherophis obsoletus Black Rat Snake English English DerrickDude / Wikimedia Commons English DerrickDude / Wikimedia Commons http://en.wikipedia.org/wiki/Pantherophis_obsoletus English black rat snake English http://en.wikipedia.org/wiki/Pantherophis_obsoletus