Inanwatan–Duriankere languages

Inanwatan–Duriankere or Inanwatan is a pair of South Bird's Head languages spoken in New Guinea:
 * Inanwatan
 * Duriankere

Noting low cognacy rates, Holton and Klamer (2018) tentatively consider Inanwatan–Duriankere, as well as Konda–Yahadian and the Nuclear South Bird's Head family to each be independent language families until further evidence can be demonstrated.