original description(ofTrochus (Monodonta) gallina Forbes, 1852)Forbes E. (1852 ["1850"]). On the marine Mollusca discovered during the voyages of the Herald and Pandora, by Capt. Kellett, R.N., and Lieut. Wood, R.N. <em>Proceedings of the Zoological Society of London.</em> 18: 270-274, pls 9, 11., available online athttps://www.biodiversitylibrary.org/page/12859018 page(s): 271, pl. 11 fig. 8 [details]