I doubt Cane/Marine Toads (Bufo marinus) are illegal in Canada. They can't survive cold winters, so there's no danger there. Having said that, Canada's legislature aren't known for their good sense when it comes to amphibians - several provinces have banned some of the Phyllobates dart frogs because the are under the uninformed impression that these poisonous amphibians are poisonous in captivity - they are not - if they were, I'd be dead many times over.