. An introduction to zoology [microform] : for the use of high schools. Zoology; Zoologie. matt SCHOOL j^oolooy. 25d of the nettling-organs of the Coelenterates. Two functions are discharged by the cilia ; they bring food towards the mouth, and they serve for locomotion, but the contractile ectoplasm assists in the latter function. Two contractile vacuoles are present in this genus, which discharge their contents by radial tubes. Within the diffluent endoplasm may be seen fcod-particles cir- culating, which are being subjected to its digestive action ; the nucleus is also situated there. This
![. An introduction to zoology [microform] : for the use of high schools. Zoology; Zoologie. matt SCHOOL j^oolooy. 25d of the nettling-organs of the Coelenterates. Two functions are discharged by the cilia ; they bring food towards the mouth, and they serve for locomotion, but the contractile ectoplasm assists in the latter function. Two contractile vacuoles are present in this genus, which discharge their contents by radial tubes. Within the diffluent endoplasm may be seen fcod-particles cir- culating, which are being subjected to its digestive action ; the nucleus is also situated there. This Stock Photo](https://c8.alamy.com/comp/RJ1A5J/an-introduction-to-zoology-microform-for-the-use-of-high-schools-zoology-zoologie-matt-school-joolooy-25d-of-the-nettling-organs-of-the-coelenterates-two-functions-are-discharged-by-the-cilia-they-bring-food-towards-the-mouth-and-they-serve-for-locomotion-but-the-contractile-ectoplasm-assists-in-the-latter-function-two-contractile-vacuoles-are-present-in-this-genus-which-discharge-their-contents-by-radial-tubes-within-the-diffluent-endoplasm-may-be-seen-fcod-particles-cir-culating-which-are-being-subjected-to-its-digestive-action-the-nucleus-is-also-situated-there-this-RJ1A5J.jpg)
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. An introduction to zoology [microform] : for the use of high schools. Zoology; Zoologie. matt SCHOOL j^oolooy. 25d of the nettling-organs of the Coelenterates. Two functions are discharged by the cilia ; they bring food towards the mouth, and they serve for locomotion, but the contractile ectoplasm assists in the latter function. Two contractile vacuoles are present in this genus, which discharge their contents by radial tubes. Within the diffluent endoplasm may be seen fcod-particles cir- culating, which are being subjected to its digestive action ; the nucleus is also situated there. This organ is peculiar in the cv.. Cir-^ Fg. 193.—Types of Ciliated and Suctorial Infusoria. 1, Param(BC!iim; 2, Opalina; 3, Stentor; 4, Onychmiromus; .'i, Vorticella; 6, Acineta ; c«. contractile vacuole ; »i, mouth ; i), vestibule, leatlin<!: towards mouth ; n, nucleus ; t, trichocysts ; a, anus ; /, contractile fibre in stalk ; /•, cilia of " right" border. Ciliata and presents many varieties of form (Fig. 193); it con- sists of two parts, a larger and a sraaljer (the nucleus and the micronucleus) ; both of these play an important part in the method of multiplication by fission, which is so common in tl.is group. They are also active in conjugation, a method of repro- duction which occura in other groups of Protozoa lus well as in- the Algte. 22. The trumpet-animalcule [Stfintor) may be taken as an ex- ample of another order (Heterotricha) where the cilia which. 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.. Wright, R. Ramsay (Robert Ramsay), 1852-1933. Toronto : Copp, Clark