At least I think it's a rotifer after looking at other examples in different positions. The insides look about right. I did a pond dip today at a pond on a golf course I have been sampling for years and never saw any of these before. In fact, I pond dip all over this area and have never seen one of these ANYWHERE. An ID would be appreciated.
Rotifer
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Rotifer
Michael Reese Much FRMS EMS Bethlehem, Pennsylvania, USA
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You're right, it is a bdelloid. The spine pattern looks just like illustrations of Dissotrocha aculeata, except with 2 extra near the front; I gather that's in keeping with the level of variation they show but don't know how to rule out a closely related species. There are also spines in Pleuretra, but there they are less pronounced and the body has many furrows.
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Rotifer
Thanks for the lead. As for variations, I have seen a few locally. Brachionus quadradentata from a pond just up the hill from my house is slightly different from a pond four miles away.
Mike
Mike
Michael Reese Much FRMS EMS Bethlehem, Pennsylvania, USA
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Horned rotifer
Did a Google search for "Dissotrocha photos" and came up with this:
http://rotifera.hausdernatur.at/Referen ... =Pages-asc
Looks like what I have is Dissotrocha aculeta markmani
Surprising how many variations there are.
Thanks again.
Mike
http://rotifera.hausdernatur.at/Referen ... =Pages-asc
Looks like what I have is Dissotrocha aculeta markmani
Surprising how many variations there are.
Thanks again.
Mike
Michael Reese Much FRMS EMS Bethlehem, Pennsylvania, USA