Here’s a neonate Chihuahuan nightsnake, Hypsiglena jani, a mildly venomous snake with eliptical pupils that is pretty common. A few years ago these were all just nightsnakes, but were split into three separate species. So … I guess this is a lifer for me, unless you count the probable jani I found near Payson awhile back. Whatever.
Chihuahuan nightsnake