Microworld

world of amoeboid organisms

Menu
Microcorycia aculeata
from Penard (1902)

Microcorycia aculeata  (Greeff, 1888) Cockerell, 1911

Diagnosis: Upper test part rigid, dome-shaped with a crown-like corona of 6 to 15 strong, big thorns and a wide base. The thorns are brown, hard, smooth and mostly apiculate, but in some cases bi-acuminate, according to Bartos (1940) differently big and high as well as often multiply acuminate and hollow at the base.

Dimensions: Greeff (1888): no dim.; Penard (1902): 140 µm; Bartos (1954): 100-160 µm; Gomes e Souza 105 x 90 µm (pers. comm. 2019).

Ecology: M. aculeata populates predominantly moss, also sphagnum. Other biotopes or habitats have been stated less frequently. Penard (1902) indicates swamp. Varga (1962) found it in forest litter (L layer), Todorov (1998) in soil, and Balik (1986) in rendzina soil. It has also been found in limnetic biotopes. Lansac-Toha & al (2001) state generally inland bodies of water besides moss and sphagnum. It also occurs in plankton (Godeanu & Ionescu 1973, Godeanu 1977) and on reed (Godeanu 1977). Maria Beatriz Gomes e Souza found it in mosses on a tree in Itabirito, Minas Gerais, Brasil in 2019 (pers. comm.).

Remarks: Greeff (1888) gave no substantial information on the cell body. Penard (1902) referred to the fact that this species does not differ in the constituency of cytoplasm, pseudopodia as well in its entire physiology from M. flava. However, the nucleus has a centrally located nucleolus.

(all from Badewitz, 2004)

Microcorycia aculeata
Microcorycia aculeata
M. aculeata, Brasil 2019 – Photomicrograph Maria Beatriz Gomes e Souza
Microcorycia aculeata
Microcorycia aculeata
M. aculeata, Brasil 2019 – Photomicrograph Maria Beatriz Gomes e Souza
Microcorycia aculeata
Location of M. aculeata, Brasil 2019 – Photomicrograph Maria Beatriz Gomes e Souza
Recent posts

Penardochlamys arcelloides

P. arcelloides – after Penard, 1904 Penardochlamys arcelloides  (Penard, 1904) Deflandre, 1953 Diagnosis: Colorless or very slightly yellowish envelope, bag or cauldron-shaped, very thin, chitinous,

Read More »

Reticulomyxa hannae

R. hannae, plasmodium – photomicrograph Steffen Clauss Reticulomyxa hannae Völcker and Clauß, 2020 Diagnosis: Trophozoites surrounded by a very thin mucous envelope, with slowly moving plasmodia, variable

Read More »

Velamentofex saxonensis

V. saxonensis, feeding (photomicrograph Steffen Clauss) Velamentofex saxonensis Völcker and Clauß, 2020 Diagnosis: Trophozoites ovoid, 30-95 μm, granuloreticulopodia up to 1000 μm long. with a hyaline, thin

Read More »

Velamentofex tyrolensis

V. tyrolensis (photomicrograph Steffen Clauss) Velamentofex tyrolensis Völcker and Clauß, 2020 Diagnosis: Trophozoites ovoid, 98-125 μm, with reticulopodia up to 300 μm long, with a hyaline,

Read More »

Velamentofex berolinensis

V. berolinensis Velamentofex berolinensis Völcker and Clauß, 2020 Diagnosis: Trophozoites ovoid, 50-300 µm, with a hyaline, extremely flexible, membranous test. Nuclei numerous, 11.6-16.2 µm in diameter,

Read More »

Lieberkuehniidae

 Lieberkuehniidae  Siemensma, Holzmann, Apothéloz-Perret-Gentil, Clauß, Voelcker, Bettighofer, Khanipour Roshan, Walden, Dumack and Pawlowski, 2020 Diagnosis: Multinucleate organic-walled monothalamous foraminifera. Test very flexible, elongated to broadly

Read More »