world of amoeboid organisms

Menu
Pseudodifflugia spec.
Pseudodifflugia spec. with a tuft of debris on its fundus

Pseudodifflugia spec.

Diagnosis: Shell ovoid, rigid, in diameter circular or slightly compressed, organic, densely agglutinated with small mineral particles; aperture small, irregular shaped, flexible and variable in shape and size; nucleus hard to detect, because of the dense covering with xenosomes. Filopodia long, branching and anatomizing, with small veils. Living cells collect a bunch of debris around their pseudostome.

Dimensions: Length c. 64-79 µm, breadth 28-40 µm, aperture c. 3.6-6.7 µm.

Ecology: shallow freshwater pond, Crailoo, The Netherlands. Cells easily multiplied in wet mounts when kept in humidity chambers.

Remarks: Though the shell is ovoid, it occasionally bears a tuft of debris on its fundus, giving it the appearance of a pointed shell (see image below).

Ovoid shell bearing a pointed tuft of debris at its fundus.
Filopodia, branching and anastomosing
Three different shells with different irregular pseudostomes.
Pseudodifflugia with large collection of debris around its pseudostome.
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 »