The little boys tend to be slimmer and have a longer tail. They also display a stripey pattern.
The females are generally a little rounder and the ridges on their backs are smoother.
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He is long and thin.
He has well defined display colours.
He has well defined points on his ridge on his back.
He is smaller than the females.
This is the female - Veronica
She is taller than Karl and "rounder"
She does not display well defined patterns or colours. She may show a faint line along her midline with the odd Dark spot in the line.
she has a smooth straight ridge on her back.
hope it helps.....I dont tend to go by the tail as my males are smaller than the females anyway.