Reptiles

https://en.wikipedia.org/wiki/List_of_reptiles_of_North_America

• Alligator
• Crocodile
• Tortoise
• Turtle
• Slider
• Cooter
• Softshell
• Lizard
• Chameleon
• Iguana
• Chuckwalla
• Anole
• Basilisk
• Gecko
• Lacerta
• Skink
• Mabuya
• Gila Monster
• Ameiva
• Whiptail
• Racerunner
• Tegu
• Wormlizard

• Snake
• Boa
• Boa Constrictor
• Racer
• Whipsnake
• Coachwhip
• Ratsnake
• Cornsnake
• Scarletsnake
• Sandsnake
• Kingsnake
• Milksnake
• Greensnake
• Vinesnake
• Gophersnake
• Pinesnake
• Littersnake
• Groundsnake
• Lyresnake
• Watersnake
• Queensnake
• Swampsnake
• Brownsnake
• Gartersnake
• Ribbonsnake
• Earthsnake
• Nightsnake
• Rattlesnake
• Copperhead
• Diamond-backed
• Coralsnake
• Seasnake
• Threadsnake
• Python

https://en.wikipedia.org/wiki/List_of_reptiles_of_Europe (only listing ones not mentioned earlier)

• Agama
• Psammodromus
• Algyroides
• Slow-worm
• Viper
• Adder

https://en.wikipedia.org/wiki/List_of_reptiles_of_Australia (only listing ones not mentioned earlier)

• Monitor
• Goanna
• Krait

https://en.wikipedia.org/wiki/List_of_reptiles_of_South_Asia (only listing ones not mentioned earlier)

• Terrapin
• Dasia
• Lipinia
• Sandfish
• Ristella
• Snake-Eye
• Lacerta

https://en.wikipedia.org/wiki/List_of_reptiles_of_Africa (only listing ones not mentioned earlier)

• Pelusios
• Boomslang
• Mamba
• Charina
• Egg-eater

And though not reptiles, some amphibians:

• Caecilian
• Bullfrog
• Toad
• Mantella
• Poison dart frog
• Tree frog
• Frog
• Newt
• Salamander
• Hellbender
• Mudpuppy
• Amphiuma
• Siren
• Mountain Chicken
• Spadefoot
• Ensatina