Tuscamia was an ancient Roman-Berber civitas in the province of Mauretania Caesariensis.
The town is known from late antiquity having flourished through the Vandal Kingdom and Roman Empire, and possibly through the Muslim conquest of the Maghreb.
The exact location of the ancient town is now lost to history,[1] but it was somewhere in today's Algeria.
[5][6] Today Tuscamia survives as titular see of the Roman Catholic Church[7] and the current bishop is Antônio Augusto Dias Duarte, auxiliary bishop of Rio de Janeiro.
[8] Guido Del Mestri[9] and Filippo Santoro were both long-term bishops of the diocese in the 20th century.