| Reference no. | Description | year | Name used | Page |
|---|---|---|---|---|
| 95344 | Harbo, R.M. 1997 Shells and shellfish of the Pacific Northwest, a field guide. Harbour Publishing, Canada, 270p. | 1997 | Tonicella undocaerulea | 106 |
| 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 | Tonicella undocaerulea | --> |
| 93817 | Lamb, A., D. Gibbs and C. Gibbs 2011 Strait of Georgia biodiversity in relation to bull kelp abundance. Pacific Fisheries Resource Conservation Council, 111p. | 2011 | Tonicella undocaerulea | 97 |
| 113765 | McDaniel, N. and D. Swanston 2013 Observations on the Gorgonian Coral Primnoa pacifica at the Knight Inlet sill, British Columbia. http://www.neilmcdaniel.com/assets/observations-on-primnoa,-may-1-13.pdf [Accessed 05/01/2017]. | 2013 | Tonicella undocaerulea | --> |
| 94906 | Pacific Northwest Shell Club 2014 Pacific Northwest marine molluscan biodiversity. Pacific Northwest Shell Club, www.PNWCS.org. http://www.bily.com/pnwsc/web-content/Northwest%20Marine%20Molluscan%20Biodiversity.html [Accessed 06/02/2014]. | 2014 | Tonicella undocaerulea | --> |
| 3477 | MarineSpecies.org 2050 MarineSpecies.org. http://www.marinespecies.org/index.php | 2050 | Tonicella undocaerulea | --> |