Whiptailed Lizard
The Checkered Whiptail Lizard (Cnemidophorus tessellatus) resembles the Western Whiptail (Cnemidophorus tigris), but the scales in front of the gular fold are abruptly and conspicuously enlarged (Stebbins, 1985). It likes flatlands, canyon slopes, gullies and other open areas without vegetation where it can escape quickly by running.
Like the New Mexican Whiptail, this [particular] species is entirely female, reproducing by parthenogenesis. It has six to as many as eight stripes, including the one or two middorsal stripes.
http://www.amnh.org/Exhibition/Expedition/Treasures/Unisexual_Whiptail_Lizards/lizards.html
Animal Life