bothriocephalideans, Kuchta, Scholz, Brabec & Bray, 2008
publication ID |
https://doi.org/ 10.11646/zootaxa.3309.1.1 |
DOI |
https://doi.org/10.5281/zenodo.6403067 |
persistent identifier |
https://treatment.plazi.org/id/038A9703-0A3E-FFBF-FF7D-75BD02E2F912 |
treatment provided by |
Plazi |
scientific name |
bothriocephalideans |
status |
|
Key to the freshwater bothriocephalideans View in CoL 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 View in CoL
- 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 View in CoL
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
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.