Mobility in Difflugia sp.

This is my first post of 2019. When I was working on some sample collected from a nearby ditch, found this awesome creature. I find the movement interesting, so sharing with you. It is undoubtedly Difflugia sp. This organism demonstrates the movement of a large testate amoeba using finger-like pseudopods. The taxonomy of this genus is based mainly on differences in shape and size of their agglutinated shells. The species also have symbiotic association with photosynthetic Chlorella.

For the zooplankton enthusiast, I have encountered this species in freshwater sediments, between water plants
Cheers, .

Difflugia sp.
Recorded in Time lapse

8 Comments Add yours

  1. Manu Prakash says:

    Dear @Raju,

    This is possibly one of my favorite foldscope post of all times!

    Wow – just incredible. What an enigmatic creature you have under your foldscope. Let’s identify this species – will send some pings and go through my protists key tonight. The shells usually encode the exact species, so we might have some luck. Also, could you try to isolate and culture these. It would be incredible for you to share this organism with students nearby – for them to have little micro-pets to study.

    What a phenomenal way to start 2019. I am beyond excited.


    1. Raju says:

      Dear Manu Sir,
      Thank you so much for your encouragement. If possible please send me the key for identification. Sometimes it have numbers of diatoms in its shell. I have never seen this in live. This was my first encounter. Please check for another giant tonight.


      1. Manu Prakash says:

        I just can’t wait. Will upload some jets tonight.


  2. laksiyer says:

    Dear @Raju. This is one of my alltime favorite posts. The quality of the video is unbelievable. I have seen many testate amoebae but this one takes the cake. I love the video where the amoeba pulls the shell. I agree with you that this is an arcellenid perhaps Diffulgia. Congratulations. Such events are to be celebrated like the new year.

  3. laksiyer says:

    I havent stopped thinking about this beauty. I reminded me of the great microscopist Joseph Leidy. Look at some Diffulgia drawings of his.
    and also of the related rhizopods
    Some more on this pioneer.

  4. Raju says:

    @Laks sir, thank you so much for the comments. Would like to share more from the same habitat in my next posts. Is it possible to compile a database with pics on the zooplankton observed under foldscope? In both marine and fresh water habitat.

  5. laksiyer says:

    @Raju. I think we could easily do that. We could just maintain a single page with links to all the posts from one habitat. A simple table would do it and you just need to update it with links. @Manu, do you have any better ideas?

  6. Manu Prakash says:

    That’s very simple to do. I am working in installing some plugins that allow more complex ways of organizing data/videos – but a running table is a quick simple solution.


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