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Difflugia tracta
Difflugia tracta, from Schönborn, 1966

Difflugia tracta  Schönborn, 1966

Diagnosis: Shell remarkably narrow and long, tubular. The sides of the shell are parallel, narrowing only slightly towards the pseudostome. Pseudostome circular. Test hyaline and filled with quartz pieces.

Dimensions: Length 210-219 µm; diameter in the upper shell part 50-52 µm.

Ecology: Freshwater. Littoral sediment of Vuolep Njakajaure (Nedre Laksjön) Sweden.

Reference: Schönborn W. 1966. Untersuchungen über die Testaceen Schwedisch-Lapplands. Ein Beitrag zur Systematik und Okologie der beschalten Rhizopoden II Limnologica. Vol.4. No.3. P.517-559.

Ferry Siemensma, created June 5, 2019; last modified January 31, 2021
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