urechidicola urechidicola urechidicola is a gram-negative, aerobic, rod-shaped and non-motile genus of bacteria from the family of flavobacteriaceae with one known species (urechidicola croceus). urechidicola croceus has been isolated from the marine spoon worm urechis unicinctus. urechidicola scientific classification domain: bacteria phylum: bacteroidota class: flavobacteria order: flavobacteriales family: flavobacteriaceae genus: urechidicolashin and yi 2020 type species urechidicola croceus species u. croceus