Abstract
Infestation of ixodid female ticks were found on African ball python(Python regius), which had been imported into Asahiyama Zoo, Hokkaido, Japan by way of the United States. These ticks were identified as Aponomma latum (Koch, 1844) . Spirochete-like bacteria were detected from unfed one of two females associated with the ball python. The subculture of the organisms resulted in failure. This is the first detection of the bacteria from the tick.