i always think of mine as a bendy kindjal
because of the grips studded on one side. guess they are a form of jambiya, but as i do not like yemeni or arabian jambiya, i'll have difficulty of thinking its related to one of these:
saw quite a few of them in saudi shops in al khobar and dammam over the years, always thought they were crude & overdressed....and the silver is a bi**h to keep clean. (i gather there are a few better shops in riyadh but i never got that far west)