There are so many.
Those are just Gen 1-2... there are like 10 more...
This a list of ALL Pokemon with gender differences. They have pictures of both genders and a description on the differences.
Actually female and male Persian don't have gender difference
Rattata and Raticate: Female has smaller whiskers
Meganium: Male has larger antennae
Scizor: Female has larger abdomen
Ursaring: Female has longer shoulder hair
Sneasel: Female has a shorter feather
Gligar: Female has smaller stinger