He also lists Balta, a regional name for Wolaytta, as a possibly separate language.
Notes
^ abBender, M. Lionel. 2000. Comparative Morphology of the Omotic Languages. Munich: LINCOM. Classification copied in Raymond G. Gordon Jr., ed. 2005. Ethnologue: Languages of the World. 15th edition. Dallas: Summer Institute of Linguistics.
^Hayward, Richard J. 2003. 'Omotic: the "empty quarter" of Afroasiatic linguistics'. In Research in Afroasiatic Grammar II: selected papers from the fifth conference on Afroasiatic languages, Paris 2000, ed. by Jacqueline Lecarme, pp. 241-261. Amsterdam: John Benjamins.