Microworld

world of amoeboid organisms

Menu
Apodera vas
Apodera vas, stacked images; from moss, Ecuador, 3000 m.

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.

Apodera vas
Apodera vas – Photo: Leonardo D. Fernández (University of Concepción, Chile)
Apodera vas
A. vas – in a slide from A.A. de Groot, Tierra del Fuego (private collection of Ferry Siemensma)
Recent posts

Centropyxis tropica

C. tropica, after Deflandre, 1929 Centropyxis tropica  Deflandre, 1929 Basionym: Centropyxis aculeata var. tropica Deflandre, 1929 Diagnosis: As for C. aculeata, but with much longer

Read More »

Centropyxis nauwercki

Centropyxis nauwercki, after Schönborn, 1975 Centropyxis nauwercki  Schönborn, 1975 Diagnosis: Shell divided by a ring groove into a highly convex, balloon-shaped fundus part and a

Read More »

Centropyxis pontifera

Centropyxis pontifera, after Bartos, 1963 Centropyxis pontifera  Bartos, 1963 Diagnosis: Test large, broadly oval, formed of a thick, solid, brownish-yellow organic matter. Test with many

Read More »

Centropyxis pyriformis

Centropyxis pyriformis, after Van Oye, 1958 Centropyxis pyriformis  Van Oye, 1958 Diagnosis: This species is distinguished from C. aculeata by its narrowed shape towards the

Read More »

Centropyxis dentistoma

Centropyxis dentistoma, after Decloitre, 1949 Centropyxis dentistoma  Decloitre, 1949 Basionym: Centropyxis aculeata var. dentistoma Decloitre, 1949 Diagnosis: Pseudostome lobed, with 4 to 7 sharp teeth,

Read More »

Centropyxis compressa

Centropyxis compressa, after Van Oye, 1948 Centropyxis compressa  Van Oye, 1948 Diagnosis: Test a little elongated and very flattened regularly, like that of Arcella discoides;

Read More »

Centropyxis lata

Centropyxis lata, after Jung, 1942 Centropyxis lata  Jung, 1942 Diagnosis: Shell coarse-scaled, covered with a mix of diatoms and detritus; pseudostome large, ventral side mostly

Read More »

Centropyxis aurita

Centropyxis aurita, after Laminger, 1973 Centropyxis aurita  Laminger, 1973 Diagnosis: In ventral view, the shell is more or less broadly ovoid in outline. Quite straight truncated

Read More »

Centropyxis grelli

Centropyxis grelli, after Laminger, 1973 Centropyxis grelli  Laminger, 1973 Diagnosis: Shell covered with relatively large mineral particles. The pseudostome outline is formed by two convex arches.

Read More »

Centropyxis adami

Centropyxis adami, after Laminger, 1971 Centropyxis adami  Laminger, 1971 Diagnosis: In ventral view, the outline of the shell is more or less elliptical, in side

Read More »