Sorry to bump an old thread, but I was going crazy trying to find an updated Biome ID list. I couldn't find one anywhere, so I decided to generate my own. If you are looking for an updated list, I have 1.7.2 here: http://www.minecraftforum.net/topic/2768519-the-ultimate-biome-id-list/
And I may even keep it updated with 1.7.4 1.7.9 and 1.8 when it comes around. At the very least, I will publish a YouTube Tutorial on how to get this list yourself without Eclipse or any Java knowledge.
0 = Ocean
1 = Plains
2 = Desert
3 = Mountains
4 = Forest
5 = Taiga
6 = Swamp
7 = River
8 = Nether
9 = Sky
10 = Frozen Ocean
11 = Frozen River
12 = Ice Plains
13 = Ice Mountains
14 = Mushroom Island
15 = Mushroom Shore
16 = Beach
17 = Desert Hills
18 = Forest Hills
19 = Taiga Hills
20 = Mountains Edge
And I may even keep it updated with 1.7.4 1.7.9 and 1.8 when it comes around. At the very least, I will publish a YouTube Tutorial on how to get this list yourself without Eclipse or any Java knowledge.
Cheers...
MajikTom