winogradskyella echinorum winogradskyella echinorum winogradskyella echinorum is a bacterium from the genus of winogradskyella which has been isolated from the sea urchin strongylocentrotus intermedius. winogradskyella echinorum scientific classification domain: bacteria phylum: bacteroidota class: flavobacteriia order: flavobacteriales family: flavobacteriaceae genus: winogradskyella species: w. echinorum binomial name winogradskyella echinorumnedashkovskaya et al. 2009 type strain kmm 6211