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Taenia is a genus of tapeworms (a type of helminth) that includes some important parasites of livestock. Members of the genus are responsible for taeniasis and cysticercosis in humans, which are a type of helminthiasis belonging to the group of neglected tropical diseases. More than 100 species are recorded. They are morphologically characterized by a ribbon-like body composed of a series of segments called proglottids; hence the name Taenia (Greek ταίνια, tainia meaning ribbon, bandage, or stripe). The anterior end of the body is the scolex. Not all members of the genus Taenia have an armed scolex (hooks and/or spines located in the "head" region), for example, Taenia saginata has an unarmed scolex, while Taenia solium has an armed scolex. Proglottids have a central ovary, with a vitellarium (yolk gland) posterior to it. As in all cyclophyllid cestodes, a genital pore occurs on the side of the proglottid. Eggs are released when the proglottid deteriorates, so a uterine pore is unnecessary.
References
- Heptner, V. G.; Sludskij, A. A. (1992). Mlekopitajuščie Sovetskogo Soiuza. Moskva: Vysšaia Škola. Washington DC: Smithsonian Institution and the National Science Foundation. pp. 1–732. https://archive.org/stream/mammalsofsov221992gept#page/83/mode/2up.
- Sachs, R (1969). "Untersuchungen zur Artbestimmung und Differenzierung der Muskelfinnen ostafrikanischer Wildtiere" (in de). Zeitschrift für Tropenmedizin und Parasitologie 20 (1): 39–50.
- "Taeniasis". DPDx - Laboratory Identification of Parasitic Diseases of Public Health Concern. 29 November 2013. https://www.cdc.gov/dpdx/taeniasis/index.html. Retrieved 11 March 2016.
- Hoberg, E. P.; Alkire, N. L.; Queiroz, A. D.; Jones, A. (2001). "Out of Africa: origins of the Taenia tapeworms in humans". Proceedings of the Royal Society B: Biological Sciences 268 (1469): 781–787. doi:10.1098/rspb.2000.1579. PMID 11345321. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=1088669
- Hoberg, Eric P. (2006). "Phylogeny of Taenia: Species definitions and origins of human parasites". Parasitology International 55: S23–S30. doi:10.1016/j.parint.2005.11.049. PMID 16371252. https://zenodo.org/record/1259295.
