fucophilus fucophilus fucophilus is a fucoidan-utilizing genus of bacteria from the phylum verrucomicrobiota with one known species (fucophilus fucoidanolyticus). fucophilus fucoidanolyticus has been isolated from the gut contend of a sea cucumber (stichopus japonicus). fucophilus scientific classification domain: bacteria phylum: verrucomicrobiota class: incertae sedis order: incertae sedis family: incertae sedis genus: fucophilussakai et al. 2003 species f. fucoidanolyticus