Gandalf: [counting on his fingers] Fili, Kili... Oin, Gloin... Dwalin, Balin... Bifur, Bofur, Bombur... Dori, Nori, Ori...
Bifur: [grunts something in Khazdul and slaps his elbow]
Gandalf: Yes, you're quite right, Bifur. We appear to be one dwarf short.