Hassānīya is the variety of Arabic originally spoken by the Beni Hassān Bedouin tribes, who extended their authority over most of Mauritania and the Western Sahara between the fifteenth and seventeenth centuries. It has almost completely replaced the Berber languages spoken in this region. Though clearly a western dialect, Hassānīya is relatively distant from other North African variants of Arabic. Its geographical location exposed it to influence from Zenaga and Wolof. There are several dialects of Hassaniya. The primary differences among them are phonetic. Today Hassaniya is spoken in Algeria, Morocco, Mauritania, Mali, Niger, Senegal and the Western Sahara. Wikipedia