Grimontia hollisae is a species of Grimontia proteobacteria (family Vibrionaceae), and is the only pathogenic species that does not grow on thiosulfate-citrate-bile salts-sucrose agar (TCBS). Based on phylogenetic evidence, the species was reclassified in 2003 from Vibrio hollisae. Grimontia hollisae is a species of Grimontia proteobacteria (family Vibrionaceae), and is the only pathogenic species that does not grow on thiosulfate-citrate-bile salts-sucrose agar (TCBS). Based on phylogenetic evidence, the species was reclassified in 2003 from Vibrio hollisae.