Staurodesmus phimus (Turner) Thomasson
Reference: Lenzenweger 1997
Compare with: Staurodesmus omearae and Staurodesmus pterosporus
Remarks: Specimen 2013011-002, that originate from the same sample as specimen 2013011-001, resembles var. semilunaris (Schmidle) Teiling, but this variety doesn't seem relevant.
C0667
2013011001
C0667
2013011002
2013011-001
Front view
Netherlands
2013011-002
Front view
Netherlands