Physalopteridae is a family of spirurian nematodes,Railliet, A. (1893). Traité de Zoologie Médicale et Agricole. Deuxième Édition. Asselin et Houzeau, Paris which belongs to the superfamily Physalopteroidea. Like all nematodes, they have neither a circulatory nor a respiratory system.
The Physalopteridae include species which are parasitic in various vertebrates.
Systematics The family includes: Bezerra, T.N.; Decraemer, W.; Eisendle-Flöckner, U.; Holovachov, O.; Leduc, D.; Miljutin, D.; Sharma, J.; Smol, N.; Tchesunov, A.; Mokievsky, V.; Venekey, V.; Vanreusel, A. (2018). NeMys: World Database of Free-Living Marine Nematodes. Physalopteridae Railliet, 1893. Accessed through: World Register of Marine Species at: http://marinespecies.org/aphia.php?p=taxdetails&id=22839 on 2018-08-06 Subfamily Physalopterinae Railliet, 1893 Genus Physaloptera Rudolphi, 1819 Genus Abbreviata Travassos, 1920 Subfamily Proleptinae Schulz, 1927 Genus Rasheedia Moravec & Justine, 2018 Genus Heliconema Travassos, 1919 Genus Paraleptus Wu, 1927 Genus Proleptus Dujardin, 1845
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