Peninsular Arabic
Peninsular Arabic, or Southern Arabic, are the varieties of Arabic spoken throughout the Arabian Peninsula. This includes the countries of Saudi Arabia, Yemen, Oman, United Arab Emirates, Kuwait, Bahrain, Qatar, Southern Iraq and the tribal people of Jordan (the native Jordanians).
South Arabia
The frontiers of South Arabia as linguistically conceived would include the historic peoples speaking the related South Arabian languages as well as neighboring dialects of Arabic, and their descendants. Anciently, there was a South Arabian language, which was borrowed by Ethiopia.