How can a frog be distinguished from a toad by its external structure and mode of movement?

Outwardly, toad and frog differ in long legs (in frogs they are more elongated, because they are designed for long jumps), skin (in toads it is coarser and drier, because their main habitat is land). There are also differences in caviar, in toads the eggs are connected in a chain and twisted around the stem of the plant, while in frogs the game is more like a shapeless jelly-like mass.