Nice quiz! I love the idea to ask for the lesser-known varieties. I think you missed a big one in Romanian-Moldovan though. Also, you could probably through Walloon on here, with about 600k native speakers according to Wikipedia. Lastly, I'm the term "Romance Language" refers to languages descended from Vulgar Latin, and not Latin itself. In fact, what most people refer to as "Latin" today is a number of standardized registers that were spoken by the social elite and did not directly beget the Romance Languages.
Wow I can't believe I missed Romanian, I should've known that! I'll fix it, thank you! :) I thought about whether to include Latin or not, but I guess I should remove that as well. I was unsure of where to draw the line between language and dialect with some of the smaller languages too, but I tried to follow Wikipedia for consistency (thus the grouping-together of some of the languages/dialects in the quiz)
Interlingua and Esperanto are two different languages. Esperanto does have many words and concepts of Romance origin but is itself not a romance language. Interlingua on the other hand is by definition based exclusively on Romance languages and that's why I chose to include it in this quiz (although I regognize it's not a clear cut case).
Interesting quiz. I only knew about 8 of these, but I still got 17 by guessing word forms of as many regions in Italy, Spain, and France as I could think of.
Interesting, but it would be good to have a bit of leeway with the names that are in other languages. For example, accepting "provenzal" for "provençal" (I had to look up the ascii for the cedilla, since I seem to not have it in my keyboard). Pie(d)montese is another one.
http://www.jetpunk.com/user-quizzes/169478/germanic-languages
+ Gallo (spoken in eastern Brittany)
+ Lorrain (the Romance dialect in Lorraine, as opposed to the Germanic Lothringer Platt)
+ Jèrriais, Guernésiais, Sercquiais and Cotentinais
+ I've already forgotten the others I thought of! So much for remembering things.
Trouble is, of course, France alone has dozens of patois and Italy even more. I suppose you're inevitably going to have to miss some out.