虽然画中的威济洛波特利手持长矛和蛇，但是这条蛇更像是一个投矛器，也就是我们所知的投射器。
Even though pictures illustrate Huitzilopochtli with a spear and a snake in his hand , the snake was most likely a spear-thrower known as an atlatl .
投矛器