Ushi-oni (lit. "cow devil") is a malevolent sea monster with the head of a bull and the body of a giant spider or crab. It is most often encountered in the coastal waters of western Japan, particularly in Shimane prefecture, where it is feared for its vicious attacks on fishermen
Nuribotoke is an animated corpse with darkened skin and dangling eyeballs. They are portrayed as similar in appearance to the Buddha but with largely bloated stomachs and occasionally having a catfish’s tail. They are believed to have revived due to poor care of the household shrine. However due to interpretations that they possess a tail, it may be that the corpse is controlled by another being. It will act like a messenger of the Buddha but give out false prophecies to fool worshipers.
In japanese mythology Jorōgumo (絡新婦) is a 400 years old demonic spider that can change its appearance into that of a seductive woman. Generally, in all mythologies the most evil and deadly demons are depicted as women.
Natsume Yuujinchou ~~ Remember the touching story of the yokai in the abandoned school building and the girl who loved him? This may be the classic ayakashi that he was based upon :: SciFi and Fantasy Art Yokai: Karakasa-obake by Richard Svensson
The art of Takato Yamamoto has a beautiful, yet horrifying take on ukiyo-e. This one, titled "Night of the Scarlet Moon" is fairly tame compared to some of the rest. The original was sold for 9000 dollars.