over 60 languages in Africa (Afroasiatic: Chadic; Niger-Congo: esp. Adamawa-Ubangi, also Benue-Congo; Nilo-Saharan: Central Sudanic) and at least one in Asia (Austronesian: Sika, spoken on the island of Flores, Indonesia)
Domain
phonology
Subdomain
phoneme inventory
Keywords
labial flap
Type
rarum
Universals violated
none?
Source
Olson, Kenneth S. & John Hajek (2003). Crosslinguistic insights on the labial flap. Linguistic Typology 7: 157-186.
Once believed to be non-existent or very rare — and indeed lacking an IPA symbol.