Under Construction

Quadrulella

Ralf Meisterfeld and Edward Mitchell
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Containing group: Lesquereusidae

Introduction

One dozen species, type species: Qua­drulella symmetrica

Characteristics

Test: pyriform or with distinct neck, some species with lateral ridge, mostly oval in cross-section, com­posed of endogenous, siliceous, quadrangular plates which are embedded in a sheet-like cement (Fig. 1).  Test colourless, transparent. Shape very similar to certain Nebela spp.. Nucleus always ovular.

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Fig. 1: Sheet-like cement of Quadrulella quadrigera. © Ralf Meisterfeld

Ecology

Habitat: Sphagnum mosses, humus rich soil. Quadrulella species avoid calcareous substrates. Feeding: herbivore.

References

Deflandre, G. 1936. Etude monographique sur le genre Nebela Leidy (Rhizopoda - Testacea). Ann. Protistol., 5:201-286.

Chardez, D. 1967. Monographie du genre Quadrulella Cockerell (Protozoa, Rhizopoda, Testacea). Bull. Rech. Sta. Agron. Gembloux N.S., 2:230-241.

Ogden, C. G. & Hedley, R. H. 1980. An Atlas of Freshwater Testate Amoebae. Oxford University Press, Oxford.

Title Illustrations
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Scientific Name Qudrulella symmetrica
Location Rothenturn, Switzerland
Identified By Ralf Meisterfeld
Copyright ©
Scientific Name Quadrulella quadrigera
Location Costa Rica
Specimen Condition Dead Specimen
Identified By Ralf Meisterfeld
Copyright ©
About This Page

This page is being developed as part of the Tree of Life Web Project Protist Diversity Workshop, co-sponsored by the Canadian Institute for Advanced Research (CIFAR) program in Integrated Microbial Biodiversity and the Tula Foundation.


Rheinisch-Westfälische Technische Hochschule Aachen, Germany

Edward Mitchell
University of Neuchâtel

Correspondence regarding this page should be directed to Ralf Meisterfeld at and Edward Mitchell at

All Rights Reserved.

Citing this page:

Meisterfeld, Ralf and Edward Mitchell. 2008. Quadrulella. Version 02 September 2008 (under construction). http://tolweb.org/Quadrulella/124526/2008.09.02 in The Tree of Life Web Project, http://tolweb.org/

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