Three new myxosporidian (Myxozoa : Myxosporea) parasites of freshwater fishes from Chad (Central Africa)

Examination of freshwater fishes from Chad (Central Africa) revealed the pr esence of three new species of Myxosporea. They are. Henneguya fusiformis s p. n. in Clarias anguillaris Linne, 1758 (Clariidae) characterized by a fus iform sporal body (32.0 +/- 0.83 x 6.16 +/- 0.68 mu m) and pyriform polar c apsules (5.73 +/- 0.43 x 3.5 +/- 0.5 mu m); Thelohanellus citharini sp. n. found in Citharinus citharus Geoffroy St-Hilaire, 1809 (Citharinidae) had p yriform spores (11.07 +/- 0.62 x 6.15 +/- 0.36 mu m) and elongated polar ca psules (6.57 +/- 0.49 x 3.23 +/- 0.42 mu m); Thelohanellus ndjamenaensis sp . n. described from Labeo parvus Boulenger, 1902 (Cyprinidae) had ovoid spo res (10.28 +/- 0.43 x 7.32 +/- 0.46 mu m) and pyriform polar capsules (4.21 +/- 0.4 x 3.21 +/- 0.43 mu m).