Crab Beastman

The Crab Beastman appeared in 1974 TV series called Kamen Rider Amazon. The Crab Beastman (カニ獣人 Kani Jūjin) is a crab monster of Geddon. He was destroyed by Kamen Rider Amazon's Big Slice.

Crab Kikkaijin
The Crab Kikkaijin (カニ奇械人 Kani Kikkaijin) appeared as part of the Revived Kaijin Corps summoned by the Great Leader of Delza Army, alongside other fallen Black Satan Kikkaijin. Unlike the other members its original destruction was never shown on screen.

Its main body looks identical to the Crab Beastman, even lacking a Black Satan belt. However, the Crab Kikkaijin had scythe and stinger arms, similar to the ones of the Bee Beastman and Mantis Beastman rather than pincer claws. After its revival, it was destroyed alongside the other revived monsters by the 6 previous Riders.

Shortly afterwards, he was revived once again as part of a new Revived Kaijin Corps. Its arms are different once again in this appearance, taking parts from the Tiger Beetle Beastman and Kikkaijin Hasamigani. They were all destroyed by the 7 Riders.

Arsenals
The Crab Beastman had pincer claws, a shell harder than iron, acidic bubbles that could reduce humans to skeletons in seconds, and swim.