While I was exploring my snapshot world 14w30c, looking for an ocean monument, I saw many Biome glitches, either being weird or just chunk-by chunk. I have attached the photos.
MC-63839
Terrain Generation bugs
Resolved
Duplicate
0
Dem Lavas
(Unassigned)
Unconfirmed
Minecraft 14w30c
Retrieved
Appears to be a duplicate of MC-315.