Taxon profile


Euglyphida Copeland, 1956

kingdom Rhizaria »  phylum Cercozoa »  class Imbricatea

The euglyphids are a prominent group of filose amoebae that produce shells or tests from siliceous scales, plates, and sometimes spines. These elements are created within the cell and then assembled on its surface in a more or less regular arrangement, giving the test a textured appearance. There is a single opening for the long slender pseudopods, which capture food and pull the cell across the substrate.

Euglyphids are common in soils, marshes, and other organic-rich environments, feeding on tiny organisms such as bacteria. The test is generally 30-100 μm in length, although the cell only occupies part of this space. During reproduction a second shell is formed opposite the opening, so both daughter cells remain protected. Different genera and species are distinguished primarily by the form of the test. Euglypha and Trinema are the most common.

The euglyphids are traditionally grouped with other amoebae. However, genetic studies instead place them with various amoeboid and flagellate groups, forming an assemblage called the Cercozoa. Their closest relatives are the thaumatomonads, flagellates that form similar siliceous tests.


Wikipedia contributors. Euglyphid [Internet]. Wikipedia, The Free Encyclopedia; 2008 Jan 27, 15:47 UTC [cited 2008 Mar 16]. Available from:

Included taxa

Number of records: 8

family Cyphoderiidae de Saedeleer, 1934
family Euglyphidae Wallich, 1864
family Paulinellidae De Saedeleer, 1934
family Trinematidae Hoogenraad & de Groot, 1940

Unplaced taxa

genus Ampullataria Van Oye, 1956 inc.sed.
genus Euglyphidion Bonnet, 1960 inc.sed.
genus Heteroglypha Thomas & Gauthier-Lièvre, 1959 inc.sed.
genus Matsakision Bonnet, 1967 inc.sed.

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inc.sed. incertae sedis - uncertain placement within this taxon