. The biology of the protozoa. Protozoa; Protozoa. Fig. 89.—Types of ciliates. A, Perilromus i mmae; B, Kerona pediculus; C, Diophrys appendiculatus; I), Euplotes charon. (A, C, D, after Calkins; B, after Stein.) (!irri are preeminently organs of locomotion, but, unlike other motile organs of the ciliates, their stroke is not confined to one plane but may be in any direction. This gives to the Hypotrichida an extreme variety of movements unparalleled by any other group of Protozoa. Many of them walk or run on the tips of their frontal and ventral cirri (Stylonychia); others swim with a peculia

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. The biology of the protozoa. Protozoa; Protozoa. Fig. 89.—Types of ciliates. A, Perilromus i mmae; B, Kerona pediculus; C, Diophrys appendiculatus; I), Euplotes charon. (A, C, D, after Calkins; B, after Stein.) (!irri are preeminently organs of locomotion, but, unlike other motile organs of the ciliates, their stroke is not confined to one plane but may be in any direction. This gives to the Hypotrichida an extreme variety of movements unparalleled by any other group of Protozoa. Many of them walk or run on the tips of their frontal and ventral cirri (Stylonychia); others swim with a peculiar jerky. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Calkins, Gary N. (Gary Nathan), b. 1869. Philadelphia, Lea & Febiger

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