Saccamoeba limna
From Martin Mrva, 2007

 

Saccamoeba limna Bovee, 1972

Diagnosis: In locomotion body usually broadest at its anterior end, with hyaline cap often obliterated. Uroid formed as a hyaline bulbus with short nonadhesive filaments. Body monopodial during changes of direction of locomotion. Vesicular nucleus, with central nucleolus. Cytoplasm finely granular with many very small bipyramidal crystals.

Dimensions: Length of the locomotive form 75–101 µm, breadth 25– 35 µm, L/B 2.14–4.04; nucleus about 10 µm in diameter.

Ecology: freshwater semi-permanent ponds with decaying vegetation in Florida (USA), freshwater aquarium in Bratislava (Slovakia).

Remarks: Differs from all Saccamoeba species by hyaline uroidal knob. Similar in dimensions and L/B ratio with S. lucens, but differs in high number of small crystals which are bipyramidal.

Recent posts

Difflugia bicruris

Difflugia bicruris, after Gauthier-Lièvre et Thomas, 1958 Difflugia bicruris  Gauthier-Lièvre et Thomas, 1958 Diagnosis: Test elongate ovoid, in cross section circular, with almost parallel sides;

Read More »

Difflugia congolensis

Difflugia congolensis, after Gauthier-Lièvre et Thomas, 1958 Difflugia congolensis  Gauthier-Lièvre et Thomas, 1958 Diagnosis: Test elongate pyriform, acuminate, with a spine of variable size and

Read More »

Difflugia key ovoid

Difflugia Ovoid Group Key characters: Test ovoid, in cross section rounded. Pseudostome circular. 1 Test with collar or short neck 2 1′ Test without collar

Read More »