Wallace Line connected islands on the west (Sumatra, Java, etc.) with the Asian continent and with similar wildlife, and islands on the east such as New Guinea were connected to Australia and were characterised by the presence of marsupials. Wallace used his extensive travel in the region to propose a line to the east of Bali since "all the islands eastward of Borneo and Java formed part of an Australian or Pacific Continent, from which they were separated." The name 'Wallace's Line' was first used by Thomas Huxley in an 1868 paper to the Zoological Society of London, but showed the line
Blakiston's Line and spiders, Hatta’s line (Soya line): for reptiles, amphibians and freshwater invertebrates, Hachisuka’s line for birds and Miyake’s line for insects. There has been speculation about why Blakiston was the person who discovered this faunal boundary line and no one before him had done so. Andrew Davis, who has been a professor at Hokkaido University for four years, argued that this may have been because of his unusual position in Japanese society as a European"." Blakiston spent much time researching bird species in Japan. At that time, Japanese ornithology was at its infancy. In 1886 Leonhard Stejneger remarked: "Our knowledge