The Scribe is a publication written for the dispersed members of the Iraqi Jewish community, and funded by an exiled Iraqi. A lecture on "The Jews of Arabia" by Lucien Gubbey was condensed in one article.
According to the article, "Arab historians mention some 20 Jewish tribes, including two tribes of Kohanim. The Jews spoke Arabic, were organised into clans and tribes just like the Arabs, and seem to have fully assimilated the values and customs of desert society."
The article details some of these tribes.
Read it here