The tomalley is the same as liver and pancreas. It is found in the carapace of the lobster and has a yellow-greeninsh color. Some may find this tasty to eat while others avoid it altogether. In reality while this is in fact edible it does contain polychlorinated biphenyls (PCBs) which could be harmful to humans in large amounts. Generally speaking the tomalley could be scraped out and consumed or used to season the dish or it could be discarded.
The coral is the roe or eggs is sometimes not eaten because of it's appearance. It is in fact very tasty but for some may be an acquired taste and sight. The roe is sometimes sold on it's own, used for a sauce for the lobster of eaten along with it. The coral or roe may be eaten or could be used to accompany the meal.
