| iso639ID iso639Name |
| 639 Root ▶ nycl NotYetClassified ▶ nycl-d NotYetClassified-d ▷ duc Duna |
| ethnologueID ethnologueName |
| duc Duna |
| glottologID glottologName |
glotto Root ▶ special Special Group ▶ isolate Isolates ▷ duna1248 Duna
|
| geoentityID geoentityName |
| oc•pac•ME•PG Papua New Guinea |