Answer:
Xambrê River
Xaparu River
Xapuri River
Xavante River (Mato Grosso)
Xavante River (Tocantins)
Xavantinho River
Xeriuini River
Xeruã River
Xie River (Brazil)
Ximim-Ximim River
Xingu River
Xinxim River
Xipamanu River
Explanation:
This is all of them! lol
