Amorphus is a genus of bacteria from the order of Hyphomicrobiales.^[1][2]

• Zeevi Ben Yosef, D.; Ben-Dov, E.; Kushmaro, A. (1 December 2008). "Amorphus coralli gen. nov., sp. nov., a marine bacterium isolated from coral mucus, belonging to the order Rhizobiales". International Journal of Systematic and Evolutionary Microbiology. 58 (12): 2704–2709. doi:10.1099/ijs.0.65462-0. PMID 19060044.
• Wang, Y.-X.; Liu, J.-H.; Chen, Y.-G.; Zhang, X.-X.; Wang, Z.-G.; Chen, Y.; Tian, S.-P.; Hu, B.; Cui, X.-L. (11 September 2009). "Amorphus orientalis sp. nov., an exopolysaccharide-producing bacterium isolated from salt mine sediment". International Journal of Systematic and Evolutionary Microbiology. 60 (8): 1750–1754. doi:10.1099/ijs.0.015735-0. PMID 19749037.