| 3705 | Tokioka, T. 1963 Contributions to Japanese Ascidian fauna. XX. The outline of Japanese ascidian fauna as compared with that of the Pacific Coasts of North America. Publ. Seto mar. Biol. Lab. 11:131-156. | 1963 | Rhopalaea crassa | --> | 
				
			| 1661 | Monniot, F. and C. Monniot 2001 Ascidians from the tropical western Pacific. Zoosystema 23(2):248-336. | 2001 | Rhopalaea crassa | 297-298 | 
				
			| 1743 | Kott, P. 2003 New syntheses and new species in the Australian ascidiacea. Journal of Natural History 37(13):1611-1653. | 2003 | Rhopalaea crassa | 1613-1615 | 
				
			| 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 | Rhopalaea crassa | --> | 
				
			| 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 | Rhopalaea crassa | --> | 
				
			| 1134 | Kott, P. 2005 Catalogue of Tunicata in Australian Waters. Queensland Museum, Brisbane, Australia Department of the Environment and Heritage. | 2005 | Rhopalaea crassa | 29-30 | 
				
			| 128823 | Shenkar, N. 2013 A new species of the genus Rhopalaea (Class: Ascidiacea) from the Red Sea. Zootaxa 3599:8p. | 2013 | Rhopalaea crassa | 2:tab.1 | 
				
			| 113738 | www.reeflex.net 2017 Sea Squirts (129). http://www.reeflex.net/kategorie/74.html [Accessed 04/01/2017]. | 2017 | Rhopalaea crassa | --> |