| Reference no. | Description | year | Name used | Page |
|---|---|---|---|---|
| 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 | Cylichna atahualpa | --> |
| 867 | Camacho-García, Y., T.M. Gosliner and Á. Valdés. 2005 Field Guide to the sea slugs of the tropical Eastern Pacific. California Academy of Sciences. 129 pp. | 2005 | Cylichna atahualpa | 56 |