Iraqi army Captain Mohammad al-Jaad said at least another 200 people were wounded in the bombings in separate Yazidi neighbourhoods in the town of Kahtaniya, west of Mosul.”
http://www.radionz.co.nz/news/latest/200708150900/at_least_175_killed_in_iraq_bombings
Multiple sources are being cited in the various reports. We may never know the exact death toll. It’s likely that many of the bodies are not intact. And the Muslim custom is to bury their dead immediately, so many of the bodies may not be taken to a morgue to be counted.