Complex sentence: Ares was also worshipped by the Baharna of Tylos, however it is not known in the form of which Arabian god or if he was worshipped in his Greek form.
Split into simpler sentences: Ares was also worshipped by the Baharna of Tylos. It is not known if he was worshipped in the form of an Arabian god (and which one) or if he was worshipped in his Greek form.