​ SHANGALLA, or Shankalla, a name loosely applied by Abyssinians to the non-Arab and non-Abyssinian tribes living west of Gojam in the Abyssinian-Sudan frontier lands. The principal tribes included are the Legas, Bertat, Gumus, Kadalos and Sienetjo. In some tribes Galla blood appears to predominate; others are Negroids.