The US dollar traded at the lower 78 yen level early Monday in Tokyo. At 9 a.m., the dollar was quoted at 78.30-32 yen compared with 78.33-43 yen in New York and 78.45-47 yen in Tokyo at 5 p.m. Friday. The euro fetched 1.2574-2579 dollar and 98.45-48 yen against 1. 2573-2583 dollar and 98.35-45 yen in New York and 1.2512-2514 dollar and 98.16-20 yen in Tokyo late Friday afternoon.