The upper Malagarazi (uM) Basin is situated in Southeastern Burundi and Northwestern Tanzania, and partially covered by the Malagarazi Nature Reserve (MNR). A checklist of fishes from the uM, in Burundi, is presented based on a literature review, a re-examination of historical collections, and a
![The uM Basin is partially covered by the Malagarazi Nature Reserve (MNR: Burundi), the latter largely corresponding to the Muyovozi Marshland complex of Burundi [3,6] (Figure 1). Furthermore, the middle Malagarazi (mM) Basin corresponds to the central stretch of the Malagarazi Basin, consisting mainly of floodplains, and extends downstream to the last rapid region below the Igamba Falls, i.e., near the village of Kasagwe (Tanzania), being at about 800 m of altitude (Figure 1). The mM Basin is partially cove](/sites/bi/files/styles/large/public/2026-07/LISTE.jpg?itok=C2C9uvd- "An Updated Checklist of the Fishes from the Upper Malagarazi (Lake Tanganyika Basin) in Burundi: Implications for an under Implementation Malagarazi Nature Reserve")