. The biology of the Protozoa. Protozoa; Protozoa. M. Fig. 15 Fig. 16 Fig. —A bilaterally .symmetrical flagellate, Giardia muris Grassi. AX, axostyle; B, blepharoplast; BB, basal body; C, centriole; E, eudosome; N, nucleus; PL, parabasal body; RH, rhizoplast. (After Kofoid and Swezy.) Fig. 16.—A bilaterally sjTnmetrical ciliate from Vroleptus mobilis. A double indi\adual formed by fusion of two individuals after conjugating. With two mouths and adoral zones (a. z.); two sets of cirri (/); and two sets of macronuclei (M) and micronuclei (rn). For structure of single individual see Frontispi


. The biology of the Protozoa. Protozoa; Protozoa. M. Fig. 15 Fig. 16 Fig. —A bilaterally .symmetrical flagellate, Giardia muris Grassi. AX, axostyle; B, blepharoplast; BB, basal body; C, centriole; E, eudosome; N, nucleus; PL, parabasal body; RH, rhizoplast. (After Kofoid and Swezy.) Fig. 16.—A bilaterally sjTnmetrical ciliate from Vroleptus mobilis. A double indi\adual formed by fusion of two individuals after conjugating. With two mouths and adoral zones (a. z.); two sets of cirri (/); and two sets of macronuclei (M) and micronuclei (rn). For structure of single individual see Frontispiece. (Original.) Carchesium polypinum, Zcothamnium arhuscnda, etc.]. In the major- ity of these arboroid colonies each individual is borne on its own stem which branches from a common stalk. In some cases, how- ever, especially amongst the flagellates, each stalk bears a cluster of individuals as in Cladomonas fruticnJofsa, Anthophysa vegetans or. 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, New York, Lea & Febiger


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