Nure-onna is a Japanese yōkai which resembles a reptilian creature with the head of a woman and the body of a snake. They are also seen as a paranormal phenomenon at sea under the name of nureyomejo.
"Nure-onna" (ぬれ女) from the Hyakkai-Zukan by Sawaki Suushi.
"Nure-onna" (濡女) from the Gazu Hyakki Yagyō by Toriyama Sekien
Rokurokubi is a type of Japanese yōkai. They look almost completely like humans with some differences. There is a type whose neck stretches and another whose head detaches and flies around freely. The
Nure-onna
…her victim's body. In other stories, a nure-onna is simply seeking solitude as she washes her hair and reacts violently to those who bother her. The rokurokubi is a close relative to the nure-onna. http://www.pinktentacle.com/2008/02/edo-period-monster-paintings-by-sawaki-suushi…
Rokurokubi from the Hokusai Manga by Katsushika Hokusai
Nukekubi, from Bakemono no e scroll, Brigham Young University.
Onna no Mōnen Mayoiaruku Koto (女の妄念迷ひ歩く事) from the Sorori Monogatari (曾呂利物語)
Wechizen no Kofuchuu Rokurokubi no Koto (ゑちぜんの国府中ろくろ首の事) from the Shokoku Hyaku Monogatari (諸国百物語)