Microworld

world of amoeboid organisms

Menu
Cornutheca saccifera, from Wailes, 1913

 
Genus Cornutheca Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell and Lara 2016

Diagnosis: Test elongated-pyriform, with a distinct neck, lateral margins tapering towards the aperture. Two lateral horns, pointing towards the posterior part of the test, either free or connected to the main part of the test by a lateral keel surrounding the posterior part of the test. Test hyaline or slightly yellowish, composed of circular to elongated shell plates probably recycled from euglyphid testate amoeba prey. Differential diagnosis. Members of this genus differ from other hyalospheniid genera in the presence of two lateral horns.

Type species: Cornutheca ansata (Leidy, 1879) Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell and Lara 2016.

Included taxa: All Nebela taxa bearing two lateral horns, such as N. ansata, N. saccifera and N. hippocrepis.

     

Recent posts

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

Velamentofex tyrolensis (photomicrograph Steffen Clauß) Family Velamentofexidae Völcker and Clauß, 2020 Diagnosis: Multinucleate organic-walled monothalamous foraminifera. Test spherical to pyriform, usually surrounded by a broad

Read More »

Claparedellus lachmannii

Claparedellus lachmannii, common shape (Riedensee) Claparedellus lachmannii  Khanipour Roshan and Clauß, 2020 Diagnosis: Multinucleate organic-walled monothalamous foraminifera. Test spherical to elongated pyriform or irregularly shaped, with a

Read More »

Claparedellus

Claparedellus lachmannii Genus Claparedellus Khanipour Roshan and Clauß, 2020 Diagnosis: Multinucleate organic-walled monothalamous foraminifera. Test spherical to elongated pyriform or irregularly shaped, with a hyaline, flexible,

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 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 »