There’s a bunch of rules that go along with talking about dwarves.  I couldn’t be bothered to look them up.  If I remember correctly, dwarves is the accepted spelling for the plural of dwarf, when refering to the fantasy race.  When talking about a group of people afflicted with dwarfism you use dwarfs.  I’m not sure what dwarfs like to be called.  I’ve heard “little people”, but I don’t think that’s really a step up. 

Also, I think the spelling for holbyta, in the page title, is correct.  My copy of LOTR is down a steep flight of stairs, as is my very nerdy sourcebook, and I didn’t want to go after them.  Of course now I want them right here where I can get at them easily…