| Reference no. | Description | year | Name used | Page |
|---|---|---|---|---|
| 3677 | Tokioka, T. 1967 Pacific Tunicata of the United States National Museum. Bull. U.S. natn. Mus. 251:1-247. | 1967 | Didemnum sphaericum | --> |
| 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 | Didemnum sphaericum | --> |
| 68823 | Castro, P. and M.E. Huber 2005 Marine biology. 5th ed. 452 p. ; col. ill. Boston, McGraw-Hill. | 2005 | Didemnum sphaericum | --> |
| 99239 | Smithsonian Institution 2015 Didemnum sphaericum Tokioka, 1967. http://collections.si.edu/search/results.htm?q=Didemnum%09sphaericum [Accessed 01/23/2015]. | 2015 | Didemnum sphaericum | --> |
| 100403 | Smithsonian Institution 2015 Didemnum sphaericum Tokioka, 1967. http://collections.si.edu/search/record/nmnhinvertebratezoology_609629 [Accessed 3/5/2015]. | 2015 | Didemnum sphaericum | --> |