| middle Niger River (Mali, Niger, Benin, Burkina Faso, Nigeria)|
east2431 (Eastern Songhay)
koyr1240 (Koyra Chini)
Southern Songhay is the more populous branch of the Songhay languages, centered on the Niger River, including Timbuktu and the old capital of Gao. It includes Zarma (Djerma), a major language of Niger.
Southern Songhay languages Wikipedia
The languages are, approximately from upstream to downstream:Koyra Chiini
The subclassification of the Southern Songhay languages is problematic. Some researchers have provisionally classified it into Eastern and Western clades, but Heath 2005 described shortcomings of this model, and Nicolaï 1981 cautiously refrained from proposing to classify Southern Songhay into two or three divisions. The proposed western division contains Djenné Chiini and–most prominently–Koyra Chiini (KCh) (meaning "town language"), which is the local language of the historically eminent university town of Timbuktu in Mali ('Tombouctou' in French). Koyra Chiini has about 200,000 speakers. The proposed Eastern division contains the remaining Southern languages and dialects. Zarma (Djerma), the most widely spoken Songhay language with two million speakers in 1998, is a major language of southwestern Niger (downriver from and south of Mali) including in the capital city, Niamey. (In 2009, an official Malian government population estimate for the Djerma people residing in Mali is 3,300,000.) Downriver from Zarma in the country of Benin is Dendi, heavily influenced by the neighboring Bariba language of the Niger–Congo family. Upriver from Zarma is Kaado, spoken northwards up to the border with Mali. In Mali, Koyraboro Senni or Koroboro Senni (KS) (meaning "town dweller language"), with 400,000 speakers, is the language of the town of Gao, the seat of the old Songhay Empire. Koyra Chiini is spoken to its west. Humburi Senni, classified by Nicolaï 1981 as "Central Southern Songhay", is spoken in a Songhay language enclave around Hombori, south of the Niger River's great bend. Another Eastern Southern dialect was discovered in 1998 in several villages about 120 km west of Hombori: its speakers call it Tondi Songway Kiini (TSK) (meaning "mountain Songhay language"). Among the Malian Songhay languages, TSK is the only one with lexical tones, and in several ways it seems to be the most conservatively evolved member.