(Reuters) -Bank of New York Mellon Corp, Germany’s Warburg Group and Deutsche Bank will pay 60 million euros ($59.85 million) to German tax authorities over the country’s “cum-ex” tax scandal, the German lender said on Monday. “Cum-ex” refers to a scheme under which banks and investors would swiftly trade shares of companies around their dividend payout day, blurring stock ownership and allowing multiple parties to falsely reclaim tax rebates on the dividends. The payment covers tax liabilities of a fund called BC German Equity Special Fund, which was managed by a subsidiary of Warburg in 2009…