| 148862 | Komba (Gwama River (South) Dialect) | tâŋtâŋ | | | Southwell (1976) | straight |
| 148956 | Komba (Puleng River Dialect) | tirik tirik | | | Southwell (1976) | straight |
| 144585 | Korak | kᵒr̃ok | | | Z'graggen (1980) | straight |
| 158022 | Kovai | maiton | | | McElhanon and Voorhoeve (1970) | straight |
| 144594 | Kowaki | ɛʔɛn | | | Z'graggen (1980) | straight |
| 158032 | Kube | dindiŋa | | | McElhanon and Voorhoeve (1970) | straight |
| 158027 | Kumukio | tororogo | | | McElhanon and Voorhoeve (1970) | straight |
| 29833 | Kuni-Boazi | ndefeɑmba | | | Voorhoeve (1970) | |
| 158003 | Kutong (Sakam Dialect) | dokoŋ | | | McElhanon and Voorhoeve (1970) | straight |
| 181636 | Lemio | ʂrow | | | Z'graggen (1980) | straight |
| 157989 | Madi | pɛt | | | McElhanon and Voorhoeve (1970) | straight |
| 144588 | Maia (Pila Dialect) | dogo | | | Z'graggen (1980) | straight |
| 144589 | Maia (Saki Dialect) | dogo | | | Z'graggen (1980) | straight |
| 86221 | Mailu (Asiaoro Dialect) | ʔoroʔoroni | | | Thomson (1975) | |
| 87591 | Mailu (Baibara Dialect) | ʔoroʔoroni | | | Thomson (1975) | |
| 87043 | Mailu (Borebo Dialect) | ʔoroʔoroni | | | Thomson (1975) | |
| 88413 | Mailu (Darava Dialect) | ʔoroʔoroni | | | Thomson (1975) | |
| 88139 | Mailu (Delebai Dialect) | ʔoroʔoroni | | | Thomson (1975) | |
| 87317 | Mailu (Domara Dialect) | ʔoroʔoroni | | | Thomson (1975) | |
| 87865 | Mailu (Geagea Dialect) | ʔoroʔoroni | | | Thomson (1975) | |
| 86495 | Mailu (Ilai Dialect) | ʔoroʔoroni | | | Thomson (1975) | |
| 86769 | Mailu (Island Dialect) | ʔoroʔoroni | | | Thomson (1975) | |
| 144587 | Mala | dokodoko | | | Z'graggen (1980) | straight |
| 144583 | Malas | taŋɛn | | | Z'graggen (1980) | straight |
| 181650 | Male | tigini | | | Z'graggen (1980) | straight |
| 158011 | Mamaa | dinda | | | McElhanon and Voorhoeve (1970) | straight |
| 158016 | Ma Manda | didimɛn | | | McElhanon and Voorhoeve (1970) | straight |
| 157972 | Mandobo Atas | ndindip | | | McElhanon and Voorhoeve (1970) | straight |
| 158047 | Mape (East Dialect) | fɔretiŋ | | | McElhanon and Voorhoeve (1970) | straight |
| 158045 | Mape (Naga Dialect) | dɔndɔŋ | | | McElhanon and Voorhoeve (1970) | straight |
| 158046 | Mape (West Dialect) | fɔretiŋ | | | McElhanon and Voorhoeve (1970) | straight |
| 259785 | Maria (Maiagolo Dialect) | aˈriri | | | Dutton (1970) | straight |
| 259787 | Maria (Maranomu Dialect) | ˈbubuˈna | | | Dutton (1970) | straight |
| 157985 | Marind (Gawir Dialect) | heda | | | McElhanon and Voorhoeve (1970) | straight |
| 125798 | Matepi | korɔr̃ | | | Z'graggen (1980) | straight |
| 144591 | Mauwake | kakɛna | | | Z'graggen (1980) | straight |
| 144595 | Mawak | kingɛn | | | Z'graggen (1980) | straight |
| 125796 | Mawan | korɔr | | | Z'graggen (1980) | straight |
| 158037 | Mesem | dʌndʌǥʌtn | | | McElhanon and Voorhoeve (1970) | straight |
| 144590 | Miani | dogo | | | Z'graggen (1980) | straight |
| 158039 | Migabac | dɔndɔne | | | McElhanon and Voorhoeve (1970) | straight |
| 181634 | Migum | gun | | | Z'graggen (1980) | straight |
| 144593 | Moere | kɛŋɛn | | | Z'graggen (1980) | straight |
| 158040 | Momare | dariʔ | | | McElhanon and Voorhoeve (1970) | straight |
| 193850 | Moresada | tətə- | | | Z'graggen (1980) | straight |
| 125789 | Mosimo | tumtumu | | | Z'graggen (1980) | straight |
| 259791 | Motu | maoro | | | Dutton (1970) | straight |
| 193846 | Mum | tʉtʉ | | | Z'graggen (1980) | straight |
| 158021 | Mungkip | didimi | | | McElhanon and Voorhoeve (1970) | straight |
| 125774 | Munit | tugu | | | Z'graggen (1980) | straight |
