In brook and bayou; or, Life in the still waters (1897) (14576779497)
Identifier: inbrookbayouorli00bayl (find matches)
Title: In brook and bayou; or, Life in the still waters
Year: 1897 (1890s)
Authors: Bayliss, Clara Kern, 1848-
Subjects: Zoology
Publisher: New York, D. Appleton and company
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress
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his hat and has to crawl out andlie around unclothed till he can make another(Chart I, Fig. 5) ! III. THE SUN ANIMALCULE. (Actinophrys sol.) If you blow soap bubbles from the end ofa tube into the air, blowing carefully with fre-quent pauses, you may make, not a single bub-ble, but a ball of small bubbles. Now, if you can imagine that out from thisglobe of bubbles, radiating in all directions, arespines as colorless as the bubbles themselves,and that every moment or two a large bubblebursts and then forms itself again, you willknow how the Actinophrys sol looks. It is called the sun animalcule because therays from the ball make it look like the oldpictures of the sun. You can find it in jouv jardiniere and every-where in fresh water, where other microscopicanimals live, but its favorite residence is onsphagnum or bog moss. 20 IN BROOK AND BAYOU. A large one is hr of an incli in diameter. 65 0 It is very quiet and well behaved. It has agently gliding or floating motion, and moves in
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Fig. 6.—1, Pulsating vacuole; 2, food in food-vacuole. a circular course when it moves at all. But itremains in one place for long periods of time. It can travel, but seldom does. It can eat,but seldom does. It can withdraw its rays,and flatten itself like an amoeba, but seldomdoes. Although it remains so quiet that one hasfull opportunity for observing it, little is knownof its life history. It is beautiful and nothingmore ; and so it lives, and nothing more, re- RHIZOPODS. 21 minding one of the question tlie page put toBrutuss wife : What shaU I do ? Run to the Capitol, and nothingmore ?And so return, and nothing more ? But beauty to be really interesting must becoupled witli energy and vivacity, and the sunanimalcule has little of either. Yet it is fond of society, and is often seenclosely associated with others, their spines in-terlaced, the animacules piled in a heap, some-times to the number of fifteen in one colony. The actinophrys multiplies by division, andthe colonies are
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Actinophrys solActinophrys sol ist eine Spezies (Art) eukaryotischer Einzeller (Protisten), die man früher als Heliozoa klassifizierte. Da die Heliozoa heute allgemein nicht mehr als monophyletisch gelten, existiert diese Bezeichnung nun nur noch als informeller Name . In der modernen Taxonomie gilt die Familie Actinophryidae meistens in die Klade der Actinophryida, die von einigen Taxonomen im Rang einer Ordnung gesehen wird. Diese Actinophryida werden als Mitglieder der Raphidophyceae zu den Stramenopilen gestellt. Andere Taxonomien gruppieren die Familie Actinophryidae letztlich ebenfalls zu den Chromista, wenn auch über andere Zwischenstufen oder lassen diese gleich ganz offen. .. weiterlesen