Text-book of comparative anatomy . FIG. 16.— Vorticella microstoma, after Stein (from Clauss Text-book of Zoology), a, Dividinglongitudinally ; N, nucleus ; 6, after complete division one part severs itself after having formeda ring of cilia behind ; w, oral ciliary organ ; c, vorticellas in conjugation; A, the adhering bud-likeindividuals. PROTOZOA 11 Order 4. Peritricha. Body globular or cylindrical, only partially ciliated, either near the mouth in aspiral, or in a belt. VorticcUa (Fig. 16), Carchesium, Epistylis, Trichodina, Strom-liidium, Tintinnus, Ophrydium. N. FIG. 17.—Podophrya gemmip
Text-book of comparative anatomy . FIG. 16.— Vorticella microstoma, after Stein (from Clauss Text-book of Zoology), a, Dividinglongitudinally ; N, nucleus ; 6, after complete division one part severs itself after having formeda ring of cilia behind ; w, oral ciliary organ ; c, vorticellas in conjugation; A, the adhering bud-likeindividuals. PROTOZOA 11 Order 4. Peritricha. Body globular or cylindrical, only partially ciliated, either near the mouth in aspiral, or in a belt. VorticcUa (Fig. 16), Carchesium, Epistylis, Trichodina, Strom-liidium, Tintinnus, Ophrydium. N. FIG. 17.—Podophrya gemmipara, after R. Hertwig (from Clauss Zoology); a, with protrudedsuctorial tentacles and capturing processes, with two contractile vacuoles; b, with buds intowhich processes of the branched nucleus N enter ; c, one of the buds broken loose. CLASS VI. Suctoria (Acineta). Ciliated only in swarm-spore stage. With suctorial tentacles, by means of whichthey penetrate the bodies of Infusoria (principally) and suck in their by gemmation. Acineta, Podophrya (Fig. 17), Dendrocomctcs. CLASS VII. Catallacta. Single genus and species : Mago-sphccra ylunula (Fig. 18), foundswimming freely in the sea on thecoast of Norway. A globular colonyof pear-shaped cells, the stems ofwhich meet at the centre of thesphere ; the outer surface of thecells provided with cilia. Reproduction: the colony dis-solves into single cells, which sinkto the bottom, become first amoeboid,then encysted, and make a newcolony within the capsule by meansof successive division ; th
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectanatomycomparative
