This parasite is Macrogyrodactylus sp. a common gill monogenean of African catfishes. If you can send a higher resolution photomicrograph, and its size, it will be easier to visualize the shape of the ventral bar and marginal hooks and be able to tell the actual species. From my knowledge of its zoogeography, I would predict its either M. congolensis or M. clarii (see attached publications). I am quite interested in this parasite` and I would appreciate if you could send me some specimens. Regards Maxwell Barson (PhD) Fish Parasitologist Department of Biological Sciences University of Zimbabwe PO Box MP167 Mt Pleasant Harare Zimbabwe Tel: +263 772 734396 Email; barson(a)science.uz.ac.zw ----- Original Message ----- From: William Leschen To: sarnissa-african-aquaculture Mailing List ; sarnissa-french-aquacultureMailing List Sent: Wednesday, October 13, 2010 3:40 PM Subject: [Sarnissa] Parasite for identifition from Clarias Parasite pour identification de Clarias Parasite for identification from Clarias Parasite pour identification de Clarias Cher Will, J'ai trouvé ce trématode mongenean sur Clarias gariepinus provenant d'une pisciculture au Nigeria. Je serai reconnaissant si vous pouvez trouver quelqu'un pour l'identifier pour moi. Je vous remercie. Babatunde From: Olaosebikan Babatunde [mailto:badolax@yahoo.com] Sent: 11 October 2010 16:19 To: William Leschen Subject: Parasite for identifition Dear Will, i found this mongenean trematode on Clarias gariepinus from a fish farm in Nigeria. I will be grateful if you can found someone to identify it for me. Thank you. Babatunde ---------------------------------------------------- Babatunde Olaosebikan, Ph.D. Fisheries Ecology and Conservation Federal College of Freshwater Fisheries Technology, P.M.B. 1500, New Bussa, 913003 Niger State, Nigeria Tel: +234(0)8078108588 +234(0)8062695809 ------------------------------------------------------------------------------ The Sunday Times Scottish University of the Year 2009/2010 The University of Stirling is a charity registered in Scotland, number SC 011159. -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. ------------------------------------------------------------------------------ _______________________________________________ Sarnissa-african-aquaculture mailing list Sarnissa-african-aquaculture(a)lists.stir.ac.uk http://lists.stir.ac.uk/cgi-bin/mailman/listinfo/sarnissa-african-aquacultu… -------------- section suivante -------------- Une pièce jointe HTML a été nettoyée... URL: <http://lists.stir.ac.uk/pipermail/sarnissa-french-aquaculture/attachments/20101014/ab8c5563/attachment.htm> -------------- section suivante -------------- Une pièce jointe autre que texte a été nettoyée... Nom: Barson et al_Macrogyrodactylus Paper.pdf Type: application/pdf Taille: 158292 octets Desc: non disponible URL: <http://lists.stir.ac.uk/pipermail/sarnissa-french-aquaculture/attachments/20101014/ab8c5563/attachment.pdf> -------------- section suivante -------------- Une pièce jointe autre que texte a été nettoyée... Nom: Barson_etal_COPA_reprint.pdf Type: application/pdf Taille: 227597 octets Desc: non disponible URL: <http://lists.stir.ac.uk/pipermail/sarnissa-french-aquaculture/attachments/20101014/ab8c5563/attachment-0001.pdf>