Day 36. Thurs Nov. 17, 2011.

This week it took me forever to find any life in my tank. I searched under the microscope for a while before stumbling upon anything lively. It was more Petelomonas. I snapped another picture just for the sake of the blog (Figure 1).

Figure 1. Petalomonas (Patterson 1996, Fig. 83).

I also found more Tachyosoma. They were lively, just like the first time I saw them. I'm curious why they disappeared between lab visits. Maybe we misidentified Euplotes last time? Figure 2 is an image of Tachyosoma and Phacus triqueter, and Figure 3 is an image of Phacus triqueter alone.

Figure 2. Tachysoma (Patterson 1996, Fig. 264-265).

Figure 3. Phacus triqueter (Forest 1954, Fig. 419).

Sources:
Forest, Herman Silva. 1954. Handbook of Algae. Knoxville (TN): University of Tennessee Press. 296 p. Fig. 419. 

Patterson, D. J. 1996. Free-Living Freshwater Protozoa: A colour guide. London (England): ASM Press. 55-125 p. Fig. 83, 264, 265.