Here is the current lineup, starting on the right front and going around counterclockwise:
spiny tailed iguana and san esteban chuckwalla
western diamondback (typical)
arizona black rattlesnake
western diamondback (hypomelanistic)
sonoran sidewinder
rosy boa
western hog nose snake
kingsnake (hypomelanistic)
glossy snake
western diamondback (melanistic)
eastern diamondback
arizona mountain kingsnake
red diamond rattlensake
tiger rattlesnake
western diamondback (patternless)
speckled rattlesnake
western diamondback (albino)
brown vine snake
black tailed rattlesnake