Sexing Bluetongues & Shinglebacks

Bluetongues
Sexing Bluies can be hard i normally go by head width as the males seem to have larger heads than females or at mating time when males are biting females on the neck.
Shinglebacks
Shinglebacks are a bit easier as males have large , wider heads to females
long narrow tails compared to the female wider and more fuller tail,
there cloaca opening is more wider than females.