Abstract
The taxonomy of the Synodontis of Lake Tanganykia was investigated by examining 312 museum specimens. Morphometric, meristic, and nontraditional internal and external characters were examined, resulting in the recognition of 11 species of Synodontis from Lake Tanganyika. Ten of the species are endemic to the lake basin, and three are new to science. Synodontis grandiops n. sp. is the most similar to S. multipunctatus but is distinguished by measurements of the eye (64.2-81.0% of snout length vs. 44.9-62.0% in S. multipunctatus) and pectoral-fin ray counts (7 vs. 8 in S. multipunctatus). Synodontis lucipinnis n. sp. is most similar to S. petricola but is distinguished by the lack if an axillary pore and the presence of light-colored windows at the bases of the rayed fins. Synodontis ilebrevis n. sp. is most similar to S. polli but is distinguished by the absence of a hindgut chamber, the shortness of the gut (0.8-1.4 times TL in S. ilebrevis vs. 4.0-5.5 times TL in S. polli), and the presence of short, flattend papillae on the skin (vs. villous papillae in S. polli).
Species recognized as valid in this work include:
S. dhonti
S. grandiops n. sp.
S. granulosus
S. ilebrevis n. sp.
S. irsacae
S. lucipinnis n. sp.
S. melanostictus
S. mulitpunctatus
S. petricola
S. polli
S. tanganaicae
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