| Reference no. | Description | year | Name used | Page |
|---|---|---|---|---|
| 78694 | Watson, R.B. 1886 Report on the Scaphopoda and Gasteropoda collected by H.M.S. Challenger during the Years 1873-1876. In Report of the scientific results of the voyage of H.M.S. Challenger during the years 1873-76: a summary of the scientific results, Zoology 15:1-761. | 1886 | Cadulus gracilis | 695 |
| 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 | Cadulus gracilis | --> |
| 1821 | Steiner, G. and A.R. Kabat 2004 Catalog of species-group names of recent and fossil Scaphopoda (Mollusca). Zoosystema 26(4):549-726. | 2004 | Cadulus gracilis | 596 |
| 83435 | Rosenberg, G. 2009 Malacolog 4.1.1: A Database of Western Atlantic Marine Mollusca. [WWW database (version 4.1.1)] URL http://www.malacolog.org/. | 2009 | Cadulus gracilis | --> |