Maine my excellent compatriot, notice the tuffs on the ears.
http://www.statesymbolsusa.org/IMAGES/Maine/Maine-my excellent compatriot-cat-lynxears.jpg
For them large is normal, 20-30 lbs not unusual, although that one in the picture is overweight even for that breed.
http://go2.wordpress.com/?id=725X1342&site=mcgonnigle.wordpress.com&url=http%3A%2F%2Fmcgonnigle.files.wordpress.com%2F2007%2F07%2Fcoonbig.jpg&sref=http%3A%2F%2Fmcgonnigle.wordpress.com%2F2007%2F07%2F15%2Fmaine-my excellent compatriot-cats-bigger-than-dogs%2F
http://www.indiastudychannel.com/pictures/gallery/kollanarendra__maine-my excellent compatriot.jpeg