Identification of Mojave rattlesnakes is not always a simple task; occasionally, these snakes hybridize with western diamondbacks. They also come in many differing shades of color. The most certain identifying characteristic are the two large scales atop the snake’s head that lie in-between its supraocular scales – (the very large scales that cover
the upper portion of the snake’s eyes). Western diamondbacks usually have six or seven much smaller scales between their supraoculars.