Bosses = ending with -kin, keth, -kya, -kan and -koo; they have minions / guards and a different appearance
Named = large version of a normal mob, unique name, no guards
Check http://en.ryzomnomnom.com/wiki/Bosses_of_Atys
Named = large version of a normal mob, unique name, no guards
Check http://en.ryzomnomnom.com/wiki/Bosses_of_Atys