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Apodera vas – Photo: Leonardo D. Fernández (University of Concepción, Chile)

Apodera vas (Certes, 1889) Loeblich & Tappan, 1961

Diagnosis: Shell sub-spherical or ellipsoidal, compressed, constriction between body and swollen neck which tapers from its junction with the body towards the aperture, neck. Aperture oval slightly arched. Test composed of collected or predated euglyphid idiosomes.

Dimensions: Certes (1889) 150-170 µm; Wailes (1913) 130-155 µm; Jung (1942) 108-163 µm; Hoogenraad and De Groot (1955) 117-173 µm; Zapata and Rudolph (1986) 80-90 µm; Smith and Wilkinson (2007) 90-210 µm; Zapata and Fernández (2008) 111-234 µm.

Ecology: Mosses, often Sphagnum. South America, Central America, Australia, New Zealand, Java, Mexico, Hawaii and Africa.

Remarks: Apodera vas is closely related to Padaungiella lageniformis.

References:
Zapata, J. and Fernández L., 2008. Morphology and Morphometry of Apodera vas (Certes, 1889) (Protozoa: Testacea) from Two Peatlands in Southern Chile. Acta Protozool. 47:389-395

Kosakyan, A., Gomaa, F., Lara, E. and Lahr, D.J.G., 2016. Current and future perspectives on the systematics, taxonomy and nomenclature of testate amoebae – European Journal of Protistology, 2016.

A. vas – in a slide from A.A. de Groot, Tierra del Fuego (private collection of Ferry Siemensma)
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