About Japanese demonology. Actually these are both LONG. From a book at the library of the University of California- Berkeley. I skimmed it, And it's a good find, I think, but It's far too long and heady for me to try to read this late at night. It was actually found when researching kamaitachi, but does not mention them, lol.
Tengu and Dogs, Some mention of Kitsune, including the interrelation between the mentioned
http://books.google.com/books?id=EIk0AA ... A1-PA25,M1Kitsune, including the evolution of thought on them and its effects on human affairs in japan. Also a covering of Izuna, the fox-summoning of Onmyoji and finally Inari
http://books.google.com/books?id=EIk0AA ... 1-PA155,M1