Eyes bigger than stomach!

Charles Krebs · Post by **Charles Krebs** » Tue Jul 13, 2004 9:14 pm

Sometimes I see things under the microscope that just make me scratch my head and smile. I'll leave it to you more knowledgeable folks to make the ID.... but I give this critter an A for effort in the eating department. 40X with 2.5X relay lens, Canon 10D. Oblique brightfield illumination.

Ken Ramos · Post by **Ken Ramos** » Wed Jul 14, 2004 3:08 am

I can't say what it is right off hand. A couple of the other guys are real good at identification of these organisms. The Protist Info Server is what I rely on the most along with Jahns book on protozoa. This is a very good image once again. I like the clarity and the exceptionally clean backgrounds that you come up with, good job

piotr · Post by **piotr** » Thu Jul 15, 2004 1:22 pm

Absoulutely amazing pictures, Charles! I'm really glad to see you as a new group member

!

I have no idea what it is, though. Tetrahymena or Colpidium, perhaps? How long the cell is? It's seems like this guy really enjoys these diatoms

Charles Krebs · Post by **Charles Krebs** » Fri Jul 16, 2004 12:18 am

Piotr,

This guy should be about 120um (microns) in the longer dimension.

jswatts · Post by **jswatts** » Sun Jul 25, 2004 7:29 am

This could be Disematostoma. I saw a lot of Disematostoma in samples I gathered last summer from the drainage pond behind the lab where I work. They seemed to have a deinite fondness for diatoms and exhibited the same pattern of trichocysts seen in this image. These obliquely illuminated images are great!