Section 158
SEC. 158. When a person insured by a contract of marine insurance has a demand against others for contribution, he may claim the whole loss from the insurer, subrogating him to his own right to contribution. But no such claim can be made upon the insurer after the separation of the interests liable to contribution, nor when the insured, having the right and opportunity to enforce contribution from others, has neglected or waived the exercise of that right.