Rotifer

Images made through a microscope. All subject types.

Moderators: rjlittlefield, ChrisR, Chris S., Pau

Olympusman
Posts: 5090
Joined: Sun Jan 15, 2012 12:31 pm

Rotifer

Post by Olympusman »

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.

Image
Michael Reese Much FRMS EMS Bethlehem, Pennsylvania, USA

actinophrys
Posts: 57
Joined: Thu Apr 24, 2014 9:22 pm
Contact:

Post by actinophrys »

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.

Olympusman
Posts: 5090
Joined: Sun Jan 15, 2012 12:31 pm

Rotifer

Post by Olympusman »

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
Michael Reese Much FRMS EMS Bethlehem, Pennsylvania, USA

Olympusman
Posts: 5090
Joined: Sun Jan 15, 2012 12:31 pm

Horned rotifer

Post by Olympusman »

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
Michael Reese Much FRMS EMS Bethlehem, Pennsylvania, USA

Post Reply Previous topicNext topic