Wurm (1972) lists Kulumani (L37) as a member of the Karna Subgroup of the Dieric Group, along with Karendala, Kungadutji L16, Bidia, Marulta L33 and Karuwali L35. Breen (1971) says the name Kulumali (L37) was unknown to his informants, who suggested that it might really be Kulumani, the name of a corroboree.
The only material which refers to Kulumali is Birdsell (1973), which contains no linguistic information. Based on the information available, Gulumali is unlikely to be a language name.
Near and east of Windorah chiefly on Kyabra Creek (Tindale 1974). ... an area between the Cheviot Range and Kyabra Creek (Oates 1975:173).
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Speaker numbers were measured differently across the censuses and various other sources listed in AUSTLANG. You are encouraged to refer to the sources.
Speaker numbers for ‘NILS 2004’ and ‘2005 estimate’ come from 'Table F.3: Numbers of speakers of Australian Indigenous languages (various surveys)' in 'Appendix F NILS endangerment and absolute number results' in McConvell, Marmion and McNicol 2005, pages 198-230 (PDF, 2.5MB).