Rapoisi (rapo1238-1)

Utterance-initial allophones are given for /ɣ/, but /ɣ/ is stated not to occur word-initially.

p >~ ɸ / "especially word-initially"
β >~ b / post-pause
β >~ m / post-pause; nasalization spreads rightward until it is blocked by a voiceless consonant
s·i >~ s̩ / _{p t k #} and in unstressed syllables
ɾ >~ l / post-pause or (infrequently) intervocalically
ɾ >~ n / post-pause; nasalization spreads rightward until it is blocked by a voiceless consonant
ɾ > r / (non-canonical form - i.e. alternate representation of the phoneme)
ɾ > ɻ / (non-canonical form - i.e. alternate representation of the phoneme)