At the end of the book, what are some examples for symbol of Richard Parker? The hyena? The zebra? The Oran-gutan?
You can read the book in terms of who the animals were supposed to represent. Richard Parker, the tiger is Pi. The hyena was the French cook, the zebra was the Chinese sailor who broke his leg jumping into the lifeboat and of course the Oran-gutan represents Pi's beloved mother.
It is hard to understand from your question exactly what you mean with, "what are some examples for symbol(s) of (for?) Richard Parker." I hopes this helps.