Oates and Oates (1970:221) list Balamumu (N149.1) as a Wulamba (a name given to the cultural area of N.E. Arnhem Land, called Murngin by Warner) dialect listed by Capell (1963) and recorded by Schebeck, but in her later work Oates (1975:387) deletes Balamumu (N149.1) saying it is not a language name.
Schebeck (2001:88) suspects that Balamumu (N149.1) is a 'warname' usually applied to Djapu N145.
As this appears to be a people name and not a language name, it is not included as a language heading in the Thesaurus.
Melville Bay and sorrounds, NT (Oates & Oates 1970:221).
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).