Ancula gibbosa (Risso, 1818)
| XXIX.—On the Nudibranchiate Mollusca inhabiting the estuary of the Dee Cuthbert Collingwood (1860) Annals And Magazine of Natural History 6: 196-202 | |
| VIII.—On the homology of the Buccal parts of the Mollusca Otto A L Mörch (1865) Annals And Magazine of Natural History 16: 73-79 | |
| March 6, 1877 E Hamilton (1877) Proceedings of The Zoological Society of London 1877: 159-269 | |
| Description of a new species of Nemichthys (Nemichthys avocetta), from Puget Sound David S Jordan and Charles H Gilbert (1881) Proceedings of the United States National Museum 3: 409-410 | |
| V.—Revision of British Mollusca A M Norman (1890) Annals And Magazine of Natural History 6: 60-91 | |
| Northern and Arctic Invertebrates in the collection of the Swedish State Museum (Riksmuseum) III. Opisthobranchl and Pteropoda Nils Odhner (1907) Swenska wetenskaps academiens handlingar 41(4): 1-118 | |
| Lost of British nudibranchiate mollusca (1923) Proceedings of The Malacological Society of London 15: 195-233 |