Qyamancha Kemenche (Kemanche, Kamancha) is a spiked fiddle. 
It is played on the knee  with a horse-hair bow which is tightened with the hand while playing.
 The body of this Kemenche is in the shape of a parabola and it has 4 strings. 
Armenians from the Black Sea (Sev Dzov) Trebizond 
region of Historical  Armenia played another type of Kemenche . 
The shape of this Kemenche is similiar to the violin. It has only 3 strings and no fret's