
Euglena "skeleton"
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Euglena "skeleton"
This appears to be the shell of an Euglena acus. The chloroplasts are empty but the eye spot is still red.


Michael Reese Much FRMS EMS Bethlehem, Pennsylvania, USA
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Nice.
Euglena acus has been moved to the genus Lepocinclis. There is a colorless sub-species: Lepocinclis acus var. hyalina Klebs 1883. The images I've seen of that guy are narrower, with larger & fewer paramylon bodies.
This might be also be a species of Khawkinea (by definition, colorless, like Astasia, but with an eyespot, like Euglena). The micro*scope website has a pic of a Khawkinea acutecaudata that looks somewhat similar to this guy, but no description is provided there. (Some species of Khawkinea have been subsumed into Euglena, lately, but I don't know about that one).

This might be also be a species of Khawkinea (by definition, colorless, like Astasia, but with an eyespot, like Euglena). The micro*scope website has a pic of a Khawkinea acutecaudata that looks somewhat similar to this guy, but no description is provided there. (Some species of Khawkinea have been subsumed into Euglena, lately, but I don't know about that one).
It Came from the Pond (Blog): http://www.itcamefromthepond.com/
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Euglena
Thanks, Bruce. My Google searches of Lepocinclus acum all had chlorophyll, but the images (as rare as they are) of Khawkinea showed colorless subjects similar to my find.
I have added your notes to my copy of "How to know the Protozoa."
I have added your notes to my copy of "How to know the Protozoa."
Michael Reese Much FRMS EMS Bethlehem, Pennsylvania, USA