To be honest there are many new flora and fauna found every year. Mostly in the rainforest and also because of habitat destruction, some may never be discovered or seen again. =/
The discovery of Mega-fauna is always good to hear however!
Here is a personal favorite of mine: The Albino Humpback whale:
http://www.abc.net.au/reslib/200308/r7927_18291.jpg
And another cool one: The Giant Isopod!
http://en.wikipedia.org/wiki/Giant_isopod
I have more too. I love researching strange animals!