What was the name of the first US submarine lost to German submarines in World War 2?

Of the 52 US Navy Submarines lost during WW2, fifty were lost in the Pacific and only two were lost in the Atlantic Oceans (both by accidents). The two Atlantic US Submarines lost were the USS Dorado and USS R-12. The Submarine DORADO was sunk by friendly fire (US Aircraft) and the Submarine R-12 was sunk during a diving accident.