world of amoeboid organisms

Menu

Hyalosphenia penardi Lauterborn, 1908

Diagnose: shell transparent, colorless, yellow or brown, elliptical with a strongly curved, nearly semi-circular pseudostome; fundus broadly rounded; surface without structure; plasma usually partly filling the shell, with some epipodia; shell strongly compressed, especially towards the aperture; nucleus globular with granules? (see drawing).

Dimensions: L 180 µm, B 70 µm.

Ecology: this species has been found in the Upper Rhine in Germany, between diatoms. Food: mainly diatoms.

Hyalosphenia penardi
Recent posts

Quadrulella scutellata

Quadrulella scutellata, after Wailes, 1912 Quadrulella scutellata  Wailes, 1912 Diagnosis: Test moderately large, hyaline, pyriform, compressed; composed of small siliceous, rectangular plates arranged in irregular

Read More »

Mrabella plicata

M. plicata, after Hoogenraad and De Groot, 1940 Mrabella plicata (Hoogenraad and De Groot, 1940) Diagnosis: Test made of small square plates, between which some

Read More »

Quadrulella alata

Q. alata, after Gauthier-Lièvre, 1957 Quadrulella alata  Gauthier-Lièvre, 1957 Diagnosis: In frontal view, the test is lageniform, with a broadly rounded fundus (subcircular or ovoid)

Read More »

Quadrulella acuminata

Quadrulella acuminata, after Van Oye, 1958 Quadrulella acuminata  Van Oye, 1958 Diagnosis: Test rather pyriform with a stretched base with converging sides, very slightly concave

Read More »