world of amoeboid organisms

Menu
Sphenoderia fissirostris
Sphenoderia fissirostris
S. fissirostris

Sphenoderia fissirostris Penard, 1890

Diagnosis: Test ovoid, composed of four, usually transverse rows of large oval scales and a number of smaller scales at the fundus and near the pseudostome; the slit-shaped collar is covered with very small scales, which are hardly visible with lightmicroscopy.

Dimensions: Cash (1915): 28-45 µm long, 20-30 µm wide; pseudostome 8-16 µm; nucleus spherical 10-12 µm in diam. Hoogenraad & De Groot (1940): 28-34 µm; my measurements: 39-54 µm.

Ecology: in wet Sphagnum and other mosses.

Sphenoderia fissirostris
Sphenoderia fissirostris
S. fissirostris, right: lateral view
Recent posts

Cyclopyxis kahli crucigenia

C. kahli var. crucigenia, after Stepanek, 1963 Cyclopyxis kahli var. crucigenia  Stepanek, 1963 Diagnosis:  This variety differs from the type by a small and highly

Read More »

Cyclopyxis eurystoma stenostoma

C. eurystoma var. stenostoma, after Decloitre, 1949. Cyclopyxis eurystoma var. stenostoma  Decloitre, 1949 Diagnosis:  This variety differs from the type by a small and highly

Read More »

Cyclopyxis eurystoma sinuosa

C. eurystoma var. sinuosa, after Decloitre, 1970 Cyclopyxis eurystoma var. sinuosa  Decloitre, 1970 Diagnosis:  The general aspect is that of the type species. To distinguish

Read More »

Cyclopyxis puteus microstoma

C. puteus var. golemanskyi, after Chardez, 1964 Cyclopyxis puteus var. golemanskyi  Chardez, 1964 Diagnosis:  Test hemispherical, similar to the type species, but of much smaller

Read More »

Cyclopyxis thomasi

Cyclopyxis thomasi – after Stepanek, 1963 Cyclopyxis thomasi Stepanek, 1963 Diagnosis: The test is similar to the test of Cyclopyxis kahli, but it is slightly lower.

Read More »

Cyclopyxis pirata

Cyclopyxis pirata – after Decloitre, 1969 Cyclopyxis pirata Decloitre, 1969 Diagnosis: The test is always covered with square plates (probably from Quadrulella) on both the dorsal

Read More »