Translation of "Exoskeleton" in Japanese

Scorpions have this thin layer that coats their exoskeleton,

サソリには外骨格を 覆う薄い層がある

That's a hairy desert scorpion, and look how that whole exoskeleton just lights up.

毛のある砂漠のサソリだな 外骨格が光ってるのを 見てくれ