Changes

===Helodermatidae===

===Helodermatidae===

* Two species that are the only venomous lizards

* Two species that are the only venomous lizards

* Gila monster (Heloderma suspectum) and the Mexican beaded lizard (Heloderma horridum)

* Gila monster (''Heloderma suspectum'') and the Mexican beaded lizard (''Heloderma horridum'')

===Varanidae===

===Varanidae===