Crab Fangire is a crustacean Fangire and an antagonist in Kamen Rider Kiva.
The Crab Fangire took advantage of the Fangire Hunters' crisis to go on a feeding spree but was stopped when Keisuke Nago altered the past. The Crab Fangire was later confronted by Kiva and had his right hand snapped off by the Rider before being shattered.
OOO, Den-O, All Riders: Let's Go Kamen Riders
In the alternate timeline created by Ankh leaving a Core medal in 1973 where Shocker conquered the world, the Crab Fangire was part of the Shocker alliance of various monster races. When the timeline is partially restored and the Riders returns, Crab Fangire fought alongside Lion Fangire against Kamen Rider Kiva, but they were both defeated by Kiva.