Suicide attacker Foued Mohamed Aggad, 23, was reportedly identified using DNA sample provided by his mother.
A 29-year-old man has been arrested in the Paris region as part of the investigation into the November 13 attacks on the city that left 130 dead, a judicial source said.
The police raid on Tuesday is part of a vast investigation which has seen 2,700 raids conducted since the attacks by the Islamic State of Iraq and the Levant (ISIL) group, with 360 people now under house arrest.
Investigators have been trying to piece together how the group managed to organise the attacks, aimed at a concert hall, national stadium, and a string of bars and restaurants in central Paris.
France has been under a state of emergency since.
Two men are already in custody, accused of providing accommodation to Abdelhamid Abaaoud, the suspected ringleader who was killed in a major police raid in northern Paris five days after the attacks.
Eight men have been arrested in Belgium, where the attacks are thought to have been organised, and one man has been detained in Turkey on suspicion of scouting the concert hall, bars and restaurants where the attacks took place.
Six counterterrorism judges are overseeing the investigation – an unprecedented number for France.
But three of the nine attackers have yet to be identified, including two of the three suicide bombers who blew themselves up outside the Stade de France stadium, who appear to have used fake passports to sneak into Europe posing as refugees.
The other unidentified man is thought to have taken part in the gun attacks on the terraces of restaurants and bistros and died alongside Abaaoud in the shoot-out with police on November 18.
Salah Abdeslam, a 26-year-old French citizen thought to have played a key logistical role, is still on the run and subject to an international arrest warrant.