AUDIGGER%#,
THAT is a Western Diamondback. Strictly Hemotoxinous Venom. The snake you are thinking of is The Mojave Green Rattler. The easy way to tell the two apart is that the Mojave Green has MUCH wider White Bands than black. The Western has more black. Here is an example:
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I know because I see Mojave Greens all over when I get up around The Shiprock Mountains, and everything North of I-10 (North of Palm Springs). I had to look closely at the pic for a good while before I could see the black stripes were much too solid for a Mojave. It is close though. The easier way to tell is if the snake chases you. Most Westerns just want to get away from humans. Mojaves are VERY aggressive, and will run you down striking at you. The buzztail in that pic is so close in color to a Mojave Green, I probably would have shot it (and I don't normally kill snakes).
A Western Diamondback cannot normally kill a healthy grownup. The hemotoxinous poison destroys every red blood cell it contacts (that why your arm swells up and turns black from all the excess fluids from the burst cells. The Mojave Green has both Hemotoxinous AND Neurotoxinous Poisons. The Neurotoxin affects your CNS (Central Nervous System). Imagine the muscles in your abdomen that cause your lungs to draw in air not working. As you endure excruciating agony from all your red blood cells bursting, you all of a sudden aren't able to draw in a breath. You lay there in agony as you suffocate to death. Not a nice way to go.
Mike