Star Wars has never been very good with naming characters/entire species... http://www.dieselsweeties.com/ics/416/
Factoid: when the original came out, I wrote a comedy bit "Darth Nader: Interplanetary Consumer Advocate" and it forever affected how I thought of ol' Ralph. Also a Sesame Street bit with the "Wookiee Monster"... and when the latest one made "Porg" out of Star Trek's "Borg", well, I feel so assimilated...