Crowley distinguishes Enneewin (D64) from Nganjaywana D24, noting that they were not mutually intelligible (1976:22-23).
In his later work, Crowley links the various forms of both names as representations of the same phonological form, distorted by 'inaccuracies in the nineteenth century records'. Accordingly, he adopts the one form Nganyaywana for both languages, differentiating them with 'north' and 'south' (1997:281). Crowley says that a comparison of lexical material suggests the languages share about 65 per cent vocabulary (1997:284).
Wafer and Lissarrague (2008:213) make reference to a Crowley manuscript, 'An introduction to the New England language', which presumably presents the data on which Crowley bases his lexicostatistics. Wafer and Lissarrague (2008:201-202) select Anaiwan D24 and Northern Anaiwan (D64) as reference names and provide an in-depth discussion of their weighing of the evidence of phonological forms from the various sources.
Tingha, Wandsworth, Ollera, Black Mountain and Guyra (Crowley 1976:22).
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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).