Here is the clip art page it came from: that's more than a bit definitive. Cartoon Raccoon Pictures The image owner (who wasn't cited, were they?) says its a raccoon and in the direct image, its quite clearly a racoon and not a lemur. read more
Lemurs are primates, like monkeys and apes (including humans), whilst raccoons are carnivores (order Carnivora). They are NOT mustelids, as BWANA says - Mustelidae is the weasel family, which includes badgers, otters, wolverines, mink, martens and so on. read more