page_title: Bursaria (ciliate)
section_title: Description
hierarchical_section_title: Bursaria (ciliate) / Description
caption_attribution_description: English: Title: Goldfish varieties and tropical aquarium fishes; a complete guide to aquaria and related subjects Identifier: cu31924000386676 (find matches) Year: 1917 (1910s) Authors: Innes, William T. (William Thornton), 1874-1969 Subjects: Aquariums; Goldfish Publisher: Philadelphia, Innes Contributing Library: Cornell University Library Digitizing Sponsor: MSN View Book Page: Book Viewer About This Book: Catalog Entry View All Images: All Images From Book Click here to view book online to see this illustration in context in a browseable online version of this book. Text Appearing Before Image: TKOPICAL AQUARIUM FISHES 141 swim through the water by means of circlets of hairs or ciUa arising from the front of their heads, by the vibratile action of which they swim and disport themselves through the water. In fact, rotifers derive their name from the wheel-like appearance produced by the motion of the circlets of cilia while feeding and swimming. For culture water to have practical food value a single drop should contain at least half a dozen living objects that can be seen in the manner suggested. Water rich in life will show rotifers so thickly that they almost touch one another—probably two hundred in a small drop. In taking water from the culture tank to feed the fish it should be skimmed from the surface, Text Appearing After Image: Fig. 96. Common Forms of Microscopic Anim.\l Life in Freshw.\ter (Greatly magnified) 1. LoxODES, a very common form. 2. Ceratium, a very common form, especially in ponds and lakes. 3. Par.\maecium, a very common form, the slipper animalcule. 4. BuRSARiA, a very common form, one of the largest. 5. Stylonycha, a very common form, found everywhere. 6. Phacus, not so common as the above numbers. 7. Spirostomum, common everywhere. 8. Euglena, common everywhere. 9. Chilodon, common everywhere. 10. Trachelocerca, common everywhere, the swan animalcule. 11. EupoLOTES, not an aquarium in America without examples. 12. Didinium, predacous, feeds on paramaecium and others. 13. Trachelocerca, small but plentiful. 14. CoLEPS, the barrel animalcule, common. Note About Images 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.
context_page_description: Bursaria is a genus of ciliates in the class Colpodea. They are relatively large and feed on other protists in freshwater habitats.
context_section_description: The cell body of Bursaria is scoop-shaped, and can be up to 1 mm long. Their oral region is crescent-shaped, and there is a band of membranelles (compound structures composed of multiple cilia) leading into the mouth. They live in the plankton of freshwater environments and ingest other protists, including algae and other ciliates. Bursaria are the largest-sized colpodean ciliates.
caption: Bursaria sp. (no. 4) and other common aquatic protists. The oral end of the cell is shown pointing to the left.
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