world of amoeboid organisms

Menu
Phisochila griseola
Physochila griseola, 86 µm long – Loosdrecht

 

Genus Physochila Jung, 1942

Diagnosis: shell pyriform, slightly compressed, surface with indentations and covered with siliceous exogenous plates; aperture more or less circular, with an recurved collar. Nucleus ovular.
Type species: Psysochila griseola (Wailes & Penard, 1911)

 

 

Physochila griseola (Wailes & Penard, 1911)

Diagnosis: shell pyriform or ovoid, slightly compressed, mainly of oval or polygonal plates; aperture circular, with an strongly outward curved collar.

Ecology: in Sphagnum swamps, mosses. I have found numerous shells in samples from a peat bog along the Bert Bos path in Loosdrecht, in the central part of the Netherlands, September 2012.

Dimensions: shell 70-85 µm long, mean 75 µm (Deflandre, 1926). My measurements 78-86 µm.

Remarks: If you look carefully at the picture above, you can see that the collar seems to curve inward.

Physochila griseola

Physochila griseola, 78 µm long
Physochila griseola
Physochila griseola – Austria, Tirol
Recent posts

Sphenoderia compressa

Sphenoderia compressa, after Badewitz, 2002 Sphenoderia compressa Badewitz, 2002 Diagnosis: Test ovoid, oval in cross section, hyaline, covered with relatively small, oval, rather irregularly arranged

Read More »

Tracheleuglypha elongata

T. elongata, A-C after Thomas and Gauthier-Lièvre, 1959; D after Van Oye, 1959 Tracheleuglypha elongata Van Oye, 1959 Diagnosis: Test similar to T. dentata, but

Read More »

Tracheleuglypha acolla

T. acolla, after Bonnet and Thomas, 1960 Tracheleuglypha acolla Bonnet and Thomas, 1955 Diagnosis: Test ovoid, non compressed, round in cross-section, with large oval overlapping

Read More »

Cyclopyxis kahli oblonga

C. kahli f. oblonga , after Tarnogradskii, 1959 Cyclopyxis kahli f. oblonga  (Tarnogradskii, 1959) Centropyxis kahli f. oblonga Tarnogradskii, 1959 Diagnosis:  Test with all the

Read More »

Cyclopyxis leclercqi

Cyclopyxis leclercqi – from Beyens and Chardez, 1986 Cyclopyxis leclercqi Beyens and Chardez, 1986 Diagnosis: Shell circular in apertural view, dorso-ventrally compressed with a swollen

Read More »

Haplomyxa saranae

Haplomyxa saranae Dellinger, 2014 Diagnosis: cell body from small rounded (0.1 mm) to large elongated shape (up to 3.5 x 0.3 mm), usually flat but

Read More »