Heiban is held together by pronouns, lexical cognates, and form-meaning resemblances in the noun class systems, though with a small question mark for Warnang. The alleged noun class form/meaning correspondences to other Kordofanian groups, namely Rashad and Talodi (with Tegem), in Schadeberg 1989, Schadeberg 1981 are not convincing as conclusively genetic; As to form, there is much eclectic selection as well as irregular correspondences, and as to meaning, the methodology of finding non-cognate shared class items is highly dubious. Chance resemblance has not been excluded. The lexical evidence for a Kordofanian unity is weak in the extreme Blench 2006. It follows that the arguments presented for a Niger-Congo affiliation are not compelling either. Blench, Roger M. (2006) Kordofanian and Niger-Congo: New and Revised Lexical Evidence. Draft Manuscript. Schadeberg, Thilo. (1981) Das Kordofanische. In Bernd Heine, Thilo Schadeberg & Ekkehardt Wolff (eds.), Die Sprachen Afrikas, 117-128. Hamburg: Helmut Buske. Schadeberg, Thilo. (1989) Kordofanian. In John Bendor-Samuel (ed.), The Niger-Congo Languages: A Classification and Description of Africas Largest Language Family, 66-80. Lanham: University Press of America.