The remains were discovered two days ago and were initially thought to be those of Indian crew member Russel Rebello, Italy's ANSA news agency reported.
However, investigators said they may actually be the remains of Italian passenger Maria Grazia Tricarichi.
In January, 2012, the Costa Concordia partially sank, killing 32 people. The bodies of Rebello and Tricarichi were not found.
Notable deaths of 2014 [PHOTOS]