Rigor mois is also known as, EXCEPT:

Rigor mois also known as death stiffening or cadaveric rigidity, is a state of stiffening of muscles, sometimes with slight shoening of fibres. Individual cell death takes place in this stage due to lack of oxygen. Cadaveric lividity is the term used for post-moem hypostasis. It is also called postmoem staining, subcutaneous hypostasis, livor mois, suggilations, vibices, or darkening of death. Ref: Essentials of Forensic Medicine and Toxicology by Narayan Reddy, 27th edition, Page 140.