Shiracuras appeared in 1972 TV series called Kamen Rider. Shiracuras (シラキュラス Shirakyurasu) is a crab louse monster of Shocker. He was destroyed by Kamen Rider #1's Rider Drop Kick.
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He can spew acid from his mouth, a giant needle for the left arm that can penetrate concrete and turn humans into vampires, and invisibility.