Encyclopedia of Parasitology

2016 Edition
| Editors: Heinz Mehlhorn


Reference work entry
DOI: https://doi.org/10.1007/978-3-662-43978-4_2946


Latin: spira = winding, nucleus.

Genus of flagellates of birds and of fish. S. meleagridis is synonym to Hexamita meleagridis (6–12 μm, 6 anterior, 2 posterior flagella), Spironucleus spp. from the intestine of fish show the same morphology (Figs. 1 and 2), they parasitize in the intestine and may lead to important losses in ornamental fish cultivation. Transmission occurs via cysts with a size of 4–5 × 6–7 μm.  Diplomonadida.
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© Springer-Verlag Berlin Heidelberg 2016