Its the Texas Horned Lizard, and they are now endangered due to fire ants. they were popular pets when i was a kid, but now its illegal to own one. they were called horny toads, mostly. One of their defense mechanisms is to shoot blood out of their eyes.
I carried them around in my pockets when I was a little kid, gave them rides in toy trucks, took them to bed with me and made them little pools to swim in.
I didn't know they shot blood from their eyes until I saw it on TV. I guess my horney toads were happy. Good , that was my intention.