During a survey of myxosporean parasites of freshwater fishes in Meerut, Uttar Pradesh (UP), India, spores of Henneguya chaudhuryi (Bajpai & Haldar, 1982) were found in the gill lamellae of the spotted snakehead fish Channa punctata (Bloch) (Perciformes: Channidae). This species was described lacking several characteristics in the original description, which makes challenging the accurate diagnosis. Here, we supplemented its description based on morphological, histological and molecular data. Plasmodia of H. chaudhuryi are oval, measuring 60–100 × 40–68 µm, located intralamellarly. Mature spores are elongate, measuring 10.5–13.2 × 3.6–4.2 µm, with two slightly unequal polar capsules with 6–7 filamental turns and two straight, equal caudal appendages, 10–17 µm long. Scanning electron microscopy revealed a flat surface. The 18S rDNA sequence for H. chaudhuryi did not show a close relationship with those of any other Henneguya spp., represented in the GenBank.
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The authors thank the Head, of the Department of Zoology, Chaudhary Charan Singh University, Meerut, Uttar Pradesh, India, for providing laboratory facilities. We are grateful to Ms. Györgyi Ostoros for the histological work and the drawings.
The work was supported by the grant from UGC (University Grants Commission) India, under the Post-doctoral Fellowship [(F.15-191/2012 (SA-II)] to AC; partially by the Uttar Pradesh Government, Centre of Excellence, India, to HSS, project number (No. 1486/70-4-2011-46(43)/2010) and by the grant of the Hungarian Government (research project OTKA K 100132).
Conflict of interest
The authors declare that they have no conflict of interest.
All applicable institutional, national and international guidelines for the care and use of animals were followed.
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Chaudhary, A., Molnár, K., Gupta, A. et al. Redescription of Henneguya chaudhuryi (Bajpai & Haldar, 1982) (Myxosporea: Myxobolidae), infecting the gills of the freshwater fish Channa punctata (Bloch) (Perciformes: Channidae) in India. Syst Parasitol 94, 403–411 (2017). https://doi.org/10.1007/s11230-017-9705-9
- Gill Filament
- Polar Capsule
- Gill Lamella
- Uttar Pradesh
- Caudal Process