Bothriocephalidean tapeworms (Cestoda) of freshwater fish in Africa, including erection of Kirstenella n. gen. and description of Tetracampos martinae n. sp. Author Kuchta, Roman Author Burianová, Alena Author Jirkú, Miloslav Author Chambrier, Alain Author Oros, Mikuláš Author Brabec, Jan Author Scholz, Tomáš text Zootaxa 2012 2012-05-11 3309 1 35 journal article 10.11646/zootaxa.3309.1.1 53c82f0b-6ddb-4a56-8940-5a3e53bc1dc6 1175-5326 280992 Key to the freshwater bothriocephalideans from Africa In order to facilitate identification of bothriocephalidean cestodes found in the freshwater fish in Africa, a simple key based on gross morphology is provided. 1 Apical part of scolex unarmed (without hooks).............................................................. 2 - Apical part of scolex armed (with hooks)................................................................... 3 2 Scolex heart-shaped, with deep, narrow bothria; external segmentation present............. Bothriocephalus acheilognathi - Scolex elongate to lanceolate, with shallow and wide bothria; external segmentation absent....... Ichthybothrium ichthybori 3 Scolex large (> 700 μm); vitelline follicles cortical, numerous; testes numerous (> 30, usually more than 100); eggs with hard shell (capsule)........................................................................................ 4 - Scolex small (<650 μm); vitelline follicles medullary; testes few (5–20); eggs with transparent, hyaline outer envelope.... 5 4 Apical disc prominent, wider than scolex, armed with <36 large, massive hooks, up to 190 μm long; cirrus-sac small (ratio of cirrus-sac width to width of segment 5–10%)......................................... Polyonchobothrium polypteri - Apical disc weakly developed, as wide as scolex or narrower, armed with> 40 hooks shorter than 90 μm; cirrus-sac large (ratio of cirrus-sac width to width of segment 16–39%)............................................. Kirstenella gordoni 5 Small worms (< 30 mm in total length), with almost cylindrical strobila (widely oval to spherical in cross section); <than 35 small hooks (<51 μm) on apical disc.................................................... Tetracampos ciliotheca - Large worms (total length up to 190 mm ), with dorsoventrally flattened strobila;> than 36 hooks on apical disc, hooks large, up to 100 μm long.................................................................... Tetracampos martinae