eucocconeis eucocconeis eucocconeis is a genus of diatoms belonging to the family achnanthidiaceae. eucocconeis scientific classification domain: eukaryota clade: diaphoretickes clade: sar clade: stramenopiles phylum: gyrista subphylum: ochrophytina class: bacillariophyceae order: achnanthales family: achnanthidiaceae genus: eucocconeismeister, 1912 extant species see text the genus was first described by cleve ex f. meister in 1912. species: eucocconeis alpestris (brun) h. lange-bertalot eucocconeis aretasii (e. manguin) h. lange-bertalot eucocconeis austriaca (hustedt) h. lange-bertalot eucocconeis depressa (cleve) h. lange-bertalot eucocconeis diluviana (hustedt) h. lange-bertalot eucocconeis dorogostaisky (jasnitsky) sheshukova-poretzkaya eucocconeis flexella (kützing) meister, 1912 eucocconeis laevis (østrup) h. lange-bertalot eucocconeis lapponica hustedt, 1924 eucocconeis leptostriata h. lange-bertalot eucocconeis ninckei (p. guermeur & e. manguin) h. lange-bertalot eucocconeis onegensis wislouch & kolbe, 1916 eucocconeis poretzkyi (jasnitsky) sheshukova-poretzkaya eucocconeis quadratarea (østrup) h. lange-bertalot, 1999