(Doke's proposed symbol, ⟨ψ⟩,[4] did not catch on, though it has IPA support for historical transcription, nor did Vedder's and Anders' ⟨⦀⟩.

[5] For a while Amanda Miller, who noted a lateral fricated release (as had Vedder), transcribed them ⟨ǃ𐞷⟩.

[7] The Damin ritual jargon of Australia may have had a voiced nasal retroflex click, transcribed by Hale & Nash as ⟨rn!⟩, though it's not known if it was phonemically distinct.

An example is the voiced retroflex click in the Grootfontein ǃKung (Central Juu) word for 'water', [ᶢ𝼊𐞷ú] (g‼ú).

A retroflex series claimed for Ekoka ǃKung turns out to be domed palatal clicks.