Article
Article
Athalamida
Article By:
Hall, Richard P. University of California, Los Angeles, California.
Last reviewed:October 2019
DOI:https://doi.org/10.1036/1097-8542.058400
An order of Granuloreticulosia in which the naked amebas form branched, threadlike, interconnected pseudopodia (reticulopodia). Species are known from freshwater, salt water, and brackish water. General characteristics of the order Athalamida are difficult to select, and the order may lack the taxonomic stability to survive accumulation of more adequate information. Heterogeneity may extend even to a genus; described species of Biomyxa differ appreciably in morphology and exhibit, for example, uninucleate and multinucleate conditions in different species (although these may represent young and mature stages in life cycles). The granular cytoplasm in Biomyxa (see illus.a) shows no clear separation into ectoplasm and endoplasm. In addition to Biomyxa, the genera Arachnula (see illus.b), Gymnophrys, and Pontomyxa have been assigned to this order. See also: Ameba; Protozoa; Rhizopodea; Sarcodina
The content above is only an excerpt.
About AccessScience
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
