From what I'm able to gather there are only 3 races. Black, white and Asian. Ethnicities are all the subgroups within the respective races. White; French, German, Irish ...... Black: Nigerian, Ethiopian......Asian; Han, Yamamoto..... However, Western European countries tend to try to equate citizenship with nationality/ethnicity so it has made things complicated. One common misconception in America is that Hispanic/Latino is a race when it is actually an ethnicity. That's another random example.

Ethnic refers to national origin. Racial refers to the race of an individual. In America, especially in the south, these get blurred because they see anyone with dark skin as a "black" person. So although Indians are Asian, they are called Black and so are many Hispanics. Oriental people are considered to be of one race.