| Reference no. | Description | year | Name used | Page |
|---|---|---|---|---|
| 129192 | Lin, G.-Y. and Z.-Y. Qi 1985 A preliminary survey of the Cephalaspidea (Opisthobranchia) of Hong Kong and adjacent waters. pp. 109-124 In B. Morton and D. Dudgeon (eds.) The malacofauna of Hong Kong and Southern China II, Proceedings of the Second International Workshop on the Malacofauna of Hong Kong and Southern China. Hong Kong, 6-24 April 1983. Hong Kong University Press. | 1985 | Adamnestia protracta | 120 |
| 3477 | MarineSpecies.org 2050 MarineSpecies.org. http://www.marinespecies.org/index.php | 2050 | Cylichna protracta | --> |