. The Protozoa. Protozoa. GENERAL SKETCH 37 some species in which colored masses of protoplasm 'â â chromatophores â are present, either as living parts of the cell (Mastigophora) or as commensals or symbionts, the protozoon and the plant living together for mutual benefit (Infusoria, Sarcodina). The chromatophores are colored by different substances, usually green by chlorophyl (Chloro- monadina, some Infusoria), or brown by diatomin (Chrysomonadidse and Dinoflagellidia), and have a definite shape and size for each species. Brilliantly colored patches of pigment, the so-called eye- spots or s

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. The Protozoa. Protozoa. GENERAL SKETCH 37 some species in which colored masses of protoplasm 'â â chromatophores â are present, either as living parts of the cell (Mastigophora) or as commensals or symbionts, the protozoon and the plant living together for mutual benefit (Infusoria, Sarcodina). The chromatophores are colored by different substances, usually green by chlorophyl (Chloro- monadina, some Infusoria), or brown by diatomin (Chrysomonadidse and Dinoflagellidia), and have a definite shape and size for each species. Brilliantly colored patches of pigment, the so-called eye- spots or stigmata, are frequently seen, chiefly among the Mastigoph-. 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 work.. Calkins, Gary N. (Gary Nathan), b. 1869. New York, The Macmillan company; London, Mamcillan & co. , ltd.