world of amoeboid organisms

Menu
Clathrulina elegans
Limnofila spec., with a spine scale of Belonocystis tubifera

Genus Limnofila Cavalier-Smith and Bass, 2009

Diagnosis: trophic phase a small, often globular cell; cilia if present generally not visible in the light microscope; with branched regularly granular and very slender, exceedingly thin thread-like filopodia. Bacterivorous. Freshwater.

Type spe­cies Limnofila borokensis Cavalier-Smith and Brass, 2009.

Remarks: ultrastructurally studied species (borokensis and mylnikovi) have flat mitochondrial cristae, bundles of 2€”6 microtubules supporting the filopodia, complex concentric-structured extrusomes, two ciliary stubs with transverse plate at the base of the transitional region but no 9+2 axonemes, no obvious paranuclear microbody, no prominent centrosome (unlike Heliomonadida), and no large granules in the distal centriolar matrix. Nuclear division closed pleuromitosis with extranuclear spindle.

Limnofila mylnikovi Cavalier-Smith and Bass, 2009

Diagnosis: cell body 5-6.6 µm, branched filopodia 1-4 x body length; unlike L. borokensis lacks swimming biflagellate stage or mobile lobopodia-driven amoeboid stage and cysts in cultures; single contractile vacuole; forms cell clusters in rows.

Limnofila
Limnofila
Limnofila
Dividing cell
Clathrulina elegans
Recent posts

Alabasta longicollis

Alabasta longicollis, after Penard, 1890 Alabasta longicollis  (Penard, 1890) Diagnosis: Test pyriform, very elongated (3 times as long as wide), transparent, very little compressed, embedded

Read More »

Alabasta kivuense

Alabasta kivuense, after Gauthier-Lièvre and Thomas, 1961 Alabasta kivuense  Gauthier-Lièvre and Thomas, 1961 Diagnosis: In frontal view, the test is finger-shaped with subparallel sides, the

Read More »

Paulinella micropora

Paulinella micropora, – from Lhee et al., 2017 Paulinella micropora Lhee, Yang, Kim, Andersen & Yoon, 2017 Diagnosis: Test elongate, with five columns of scales,

Read More »

Quadrulella tubulata

Quadrulella tubulata, after Gauthier-Lièvre, 1953 Quadrulella tubulata  Gauthier-Lièvre, 1953 Diagnosis: Shell almost lageniform, compressed, with rounded fundus and more or less irregularly arranged, commonly small,

Read More »

Quadrulella elongata

Quadrulella elongata, after Van Oye, 1952 Quadrulella elongata  Van Oye, 1952 Diagnosis: Test elongated with long neck and square plates, without any pores. Pseudosome slightly

Read More »

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 »