Zootaxa 3063: 1–21 (2011) www.mapress.com/zootaxa/
Copyright © 2011 · Magnolia Press

ISSN 1175-5326 (print edition) ZOOTAXA
ISSN 1175-5334 (online edition)

Three new species of African suckermouth catfishes, genus Chiloglanis (Siluriformes: Mochokidae), from the lower Malagarasi and Luiche rivers of western Tanzania

Authors

JOHN P. FRIEL & THOMAS R. VIGLIOTTA
Cornell University Museum of Vertebrates, 159 Sapsucker Woods Road, Ithaca, NY 14850-1923, USA. E-mail: jpf19@cornell.edu;trv2@cornell.edu



FIGURE 3. Dorsal, lateral and ventral views of Chiloglanis igamba sp. nov., holotype, CU 90576, Tanzania, Kigoma Region, Malagarasi River at Lower Igamba Falls. Photo by T.R. Vigliotta. Scale bar equals 1 cm.

Abstract

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 Malag- arasi 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.



FIGURE 4. Dorsal, lateral and ventral views of Chiloglanis kazumbei sp. nov., holotype, CU 95230, Tanzania, Kigoma Region, Malagarasi River at rapids ~6.4 km upriver from Ilagala barge crossing. Photo by T.R. Vigliotta. Scale bar equals 1 cm.



FIGURE 5. Dorsal, lateral and ventral views of Chiloglanis orthodontus sp. nov., holotype, CU 90567, Tanzania, Kigoma Region, side channel of Malagarasi River around island. Photo by T.R. Vigliotta. Scale bar equals 1 cm.

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