In Aztec mythology, Atlahua, Ahtlahua, Atlahoa, Atlavâ [1] or Atlaua [aˈtɬawa] was a water God (the blue version of Tlaloc, the Tlaloc from the South [2]), fisherman and archer. There were said to be at least four ancient Aztec temples at which he was worshiped, the tallest supposedly being over 200 feet tall (61 metres) [ citation needed]. The Aztecs prayed to him when there were deaths in water, such as when Hernando Cortez conquered Tenochtitlan (the Ancient Aztec capital on a lake, now Mexico City), and the lake was said to be "floating with heads and corpses"[ citation needed].
The original image appears in General History of the Things of New Spain by Fray Bernardino de Sahagún: The Florentine Codex. Book II: The Ceremonies. [3]