LocationHadjer-Lamis region: N’Djamena subprefecture, Douguia, Malalie, Oulio (Walia) and other villages on Chari river.
Alternate NamesGoulfei, Goulfey, Gulfei, Kotoko-Gulfei, Malbe, Malgwe, Ngwalkwe, Sanbalbe
DialectsGoulfey, Walia, Mara, Douguia.