. Text-book of zoology for junior students. Zoology. 38 INVEUTEBKATE ANIMALS. of cilia. There is a thii'd smuller group—tlie Suctoria—in which the body is furnished with contractile tentacle like filaments, which end in little discs, and are used as sncking-tubes. It will not be necessary to do more than mention the Suctorial Infusoria here ; but the two groujjs of the Ciliata and Flarjellata require more detailed Fi^. 17.—Ciliati;il and Infusoria. A, Bursaria Iruncatella, enlarged 50 tiiiii-s. B, NyrJolhenis conU/ormis, enlarged 130 times. C, AmpMlepiiis anser, enlarge
. Text-book of zoology for junior students. Zoology. 38 INVEUTEBKATE ANIMALS. of cilia. There is a thii'd smuller group—tlie Suctoria—in which the body is furnished with contractile tentacle like filaments, which end in little discs, and are used as sncking-tubes. It will not be necessary to do more than mention the Suctorial Infusoria here ; but the two groujjs of the Ciliata and Flarjellata require more detailed Fi^. 17.—Ciliati;il and Infusoria. A, Bursaria Iruncatella, enlarged 50 tiiiii-s. B, NyrJolhenis conU/ormis, enlarged 130 times. C, AmpMlepiiis anser, enlarged 120 times. D, CenUimn tripos, enlarged 250 times, with its carapace and single Ilagellum. E, Monosiga angustata, enlarged 2-')00 times : n Nuelens; c vesicle; / Flagellmii; m Membranous collar surrounding the liase of the flagelluui, (After, or copied froui, Saville Kent.) The CUiated Infusoria may be defined as Protozoa which are -pro- vided with a month, and iixiin/tij a short gullet and a distinct anus. Their consist of soft scmi-tluid protoplasm {''endoplasm ") (H- closfxl hy a more or less external layer ('';); and the surface is partly or leholly corered with vihratimj cilia. They lire mostly simiJe free-swimming organisms ; but they some- times form colonies by budding, and are to some solid object ill thoii'adult As tyjjes of these two sections of the In- fusoria, we may take rcs;icci;ve'y I'arameecium and 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 Nicholson, Henry Alleyne, 1844-1899. New York, American Book Co
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectzoology, bookyear1885
