Stephen Henning wrote:
There are two in Australia also but they don't have a "Brown Snake" but
do have the Brown Tree Snake and the Slate-Brown Snake in addition to
those two snakes they have the Children's Python...

I hate to argue with someone who obviously know his way around snakes
and outbacks but...

...Olive Python...

That's almost brown.

...Speckled Brown Snake,
Peninsula Brown Snake, Ingram's Brown Snake, Ringed Brown Snake, Western
Brown Snake or Gwarder, Common or Eastern Brown Snake...

Aww, come on - there are loads.