Sun worship is not unique to human societies. Evolutionary processes too seem to enjoy encountering sun-like shapes, from sea urchins to porcupine spines to radiolarians.
Bicosoecids were shown off fairly recently- but wait, there's more! One particular pond sample was rich in colonial bicosoecids whose loricas were conveniently accentuated by a touch of iron (rusting).
Here is a filose(="thin-footed) amoeba from nearby decaying leaf litter. Most likely a species of Lecythium , but these amoebae are so poorly studied it's hard to establish what's what (nor has there been hardly any molecular work done to figure out where they fit, but probably somewhere in Cercozoa (in supergroup Rhizaria), near filose scale-plated Euglyphids and other squishy-stringy (and squishy-flagellated) critters.
Last post of 2012! Hope it was a good year for you all, and that the next will be even better -- Happy New Year! Some protists sitting in champagne glasses might be relevant to our interests: Bicosoecids are non-photosynthetic relatives of brown algae.
I'm out of town right now with stunningly crappy internet, but will try to redeem myself a bit with some scheduled posts. Mostly pictures (uploaded before crappy internet).
Eerily empty exoskeletal remnants of a rotifer, a few bacteria and what might be a cyst of some parasite -- perhaps the one who led this rotifer to meet its fate.
A golden pennate diatom and a green euglenid, Phacus sp., industriously photosynthesising before the slide dries out. Perhaps unexpectedly for its appearance, the diatom can actually move, by secreting mucus to glide on through the raphe (a slit), and often quickly enough to screw up your photography.
While I work on another post, here's a nucleus of an amoeba to look at. Some amoebae tend to have large and fairly obvious nuclei, and, if the cell is thin enough, you can make out some nuclear ultrastructure!
You may be shocked to know that, on a rare occasion, yours truly does look at things that are not protists. Sometimes even finding them interesting. And often taking far too many photos.
The previous Mystery Micrograph was of the surface of Blepharisma , a characteristically pink ciliate. You can see rows of the pigment granules responsible for the unusual colour.
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