Histiobalantium or so it appears to be. The buccal cavity located about mid way of the cell with a undulating membrane is hard to track down both in books and on the PIS. However, I think this is a close match. The numerous stiff cilia and the presence of the symbionts seem to fit, along with the location of the buccal cavity, shape and general appearance of the organism, and membrane structure. If indeed this is Histiobalantium, then I am afraid I will have to stick my nose in the air and say that my image looks much better than what is pictured on the Protist Server.
Histiobalantium
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Zeiss Axiostar Plus 40X/0.65 CP Achromat
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Stitch and Processing: Photo Impact 6
Histiobalantium
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I tried a 100% crop to see if I could drag out any more detail but the sharpness of the image seemed to fail and looked, well sort of soft. I had never heard of this genus before either but I did not want to post as "unidentified." That's the less informative and easy way out but then there are sometimes when an organism such as this or maybe others, just plain refuse to be found in the annuls of science. There are numerous amounts of these things in the sample which I took from a very small, about 3 foot wide 6 inch deep, stream of slow moving water. The area has copious amounts of decaying hardwood tree leaves, left over from the autumn leaf drop. There were also "gobs" of frog eggs in the tiny pools of the stream. With the leaves not out on the trees as of yet, the late winter sun warmed the water quite nicely, being that it is shallow with a dark muddy and sandy bottom.
Thanks guys!
Thanks guys!
Ken, do you have the book or PDF of that book Tom has listed in the beginning of the micro forum?? They have a good picture of your critter on page 16 & 186 (Histiobalantium natans)...if you don`t have it, you should. Very nice PDF file for $4.00.
Take Nothing but Pictures--Leave Nothing but Footprints.
Doug Breda
Doug Breda