Sexing by skull shape?

[GrifTheGreat]

so that means mine is too small to tell at 2.1" right Grif?

Sometimes if you can get a good look at their thumb you can see where the pad is beginning to appear.

[connor111699]

There is a little bump, so it is shaped like a wide capital T but no discoloration.

[connor111699]

Like the one on the left