| 1663 | Cairns, S.D., D.R. Calder, A. Brinckmann-Voss, C.B. Castro, D.G. Fautin, P.R. Pugh, C.E. Mills, W.C. Jaap, M.N. Arai, S.H.D. Haddock and D.M. Opresko 2003 Common and Scientific Names of Aquatic Invertebrates from the United States and Canada: Cnidaria and Ctenophore, Second Edition. American Fisheries Society Special Publication, no,28. XI+115. With CD-ROM. | 2003 | Clavularia modesta | 33 | 
				
			| 833 | Ruppert, E.E., R.S. Fox and R.D. Barnes 2004 Invertebrate Zoology. A functional evolutionary approach. 7th Ed. Brooks/Cole, Thomson Learning learning, Inc. 990 p. | 2004 | Clavularia modesta | --> | 
				
			| 19 | Bisby, F.A., M.A. Ruggiero, K.L. Wilson, M. Cachuela-Palacio, S.W. Kimani, Y.R. Roskov, A. Soulier-Perkins and J. van Hertum 2005 Species 2000 & ITIS Catalogue of Life: 2005 Annual Checklist. CD-ROM; Species 2000: Reading, U.K. | 2005 | Clavularia modesta | --> | 
				
			| 110421 | Smithsonian Institution 2016 Clavularia modesta (Verrill, 1874). http://collections.si.edu/search/results.htm?q=Clavularia%09modesta [Accessed 08/08/2016]. | 2016 | Clavularia modesta | --> | 
				
			| 121228 | National General Status Working Group 2017 Standardized common names for wild species in Canada. http://www.wildspecies.ca [Accessed 07/11/2019]. | 2017 | Clavularia modesta | --> |