world of amoeboid organisms

Menu
Cyclopyxis plana var. microstoma
Cyclopyxis plana var. microstoma  after Schönborn, 1966

Cyclopyxis plana var. microstoma Schönborn, 1966

Diagnosis: Test small, flat and yellow-brown in color, covered with single flat mineral grains. Pseudostome ventrally, circular and occupying at most 1/3 of the shell diameter.

Dimensions: Test height about 20 um, shell diameter about 45 μm.

Ecology:

Remarks: The form resembles strikingly the kind described by Bartos 1963 from Java, Cyclopyxis plana Bartos. It differs from it by the somewhat deeper intussusception of the pseudostome (5 µm) and by the much smaller pseudostome. However, as with the form described by Bartos, the invagination begins immediately on the shell edge. Bartos does not indicate any color.

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 »