Trichomonas augusta from the rectum of Rana pipiens.  This silver protein technique reveals the undulating membrane to the left, the axostyle passing longitudinally through the cell, tapering to the posterior (right) tip, the sausage-shaped, dark staining parabasal body (dictyosome or Golgi) and the nucleus and nucleolus below the parabasal body.  Some of the anterior flagella can be seen.  2000x

Trichomonas augusta from the rectum of Rana pipiens. The undulating membrane (rippled structure), costa (curved structure under the undulating membrane), axostyle (rod-shaped body passing longitudinally through the cell), and sausage-shaped, dark staining parabasal body at the upper (anterior) end. The nucleus is below the parabasal body and slightly out of focus.  2000x