Recent fieldwork and review of existing collections containing Chiloglanis specimens from the lower Malagarasi and Luiche rivers in western Tanzania has revealed three new species that are readily distinguished from described congeners by external features. Two of the species, Chiloglanis igamba sp. nov., and Chiloglanis orthodontus sp. nov. are restricted to the Malagarasi basin. The third species, Chiloglanis kazumbei sp. nov., is more broadly distributed in both the Malagarasi and adjacent Luiche basin. A key to all described species within these two basins is presented, along with comments on the distribution and validity of nominal Chiloglanis species examined during this study. mm SL, 13 females ALC (6 measured for Table 1), 29.3-3.6 mm SL, 2 undetermined gender C&S; same collection data as holotype. -CU 95220, 41 ALC, 26.0-61.7 mm SL; same collection data as AMNH 251401. -MRAC 2010-006-P-1-5, 5 ALC, 30.8-56.8 mm SL; same collection data as AMNH 251401. -SAIAB 87163, 5 ALC, 30.9-56.2 mm SL; same collection data as AMNH 251401. Non-type specimens. same collection data as AMNH 251402. -CU 95222, 4 ALC, 33.7-58.1 mm SL; same collection data as AMNH 251403. -CU 95223, 3 ALC, 29.0-51.8 mm SL; same collection data as AMNH 251404. -CU 95224, 22 ALC, 22.8-47.3 mm SL; same collection data as AMNH 251405. -CU 95225, 4 ALC, 29.5-55.1 mm SL; same collection data as AMNH 251406. -CU 95226, 35 ALC, 25.3-62.7 mm SL; same collection data as AMNH 251407. -CU 95227, 4 ALC, 25.7-36.0 mm SL; same collection data as AMNH 251408. -MRAC P 94068.0002-0006, 1 male ALC, 4 female ALC; Tanzania, Kigoma Region, Malagarasi River at the rapids near Uvinza salt mine, 5° 06' S, 30° 22' E; L. De Vos, 21 October 1994.Diagnosis. Chiloglanis igamba is a sexually dimorphic species in which the caudal fin of adult males is relatively truncate, but with the middlemost rays moderately elongated (Figs. 2
