Lackey, James B. Department of Environmental Engineering, University of Florida, Gainesville, Florida.
Last reviewed:October 2019
- Related Primary Literature
- Additional Reading
An order of the class Zoomastigophorea, superclass Mastigophora, subphylum Sarcomastigophora, in the phylum Protozoa. They are principally small, single-celled or colonial, structurally simple, colorless flagellates distinguished by having the anterior end surrounded by a thin protoplasmic collar, within which is an ingestive area for particulate matter, for example, bacteria. A single flagellum arises from the center of this collar. The genus Monosiga is single, sometimes with a stalk, sometimes free in the plankton. Desmarella is a linear colony (see illustration), and Astrosiga and Sphaerosiga are colonies radiating from a center. Proterospongia cells arise in a common jelly, the zooids being organically connected. Diploeca lives in an attached lorica. Stelexomonas and Aulomonas inhabit tubular loricae. Diplosiga has a double colony. Sportelloeca and Pleurasiga live in complex loricae. See also: Protozoa; Sarcomastigophora; Zoomastigophorea
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Contributors include more than 10,000 highly qualified scientists and 46 Nobel Prize winners.
MORE THAN 8700 articles covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 19,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information