Descrição original: Simone, L. R. L. (2018). Convergence with naticids: phenotypic phylogenetic study on some Antarctic littorinoideans, with description of the zerotulid new genus Pseudonatica, and its presence in Brazil (Mollusca, Caenogastropoda). Journal of the Marine Biological Association of the United Kingdom. 98(6): 1365-1381., available online athttps://doi.org/10.1017/S002531541700025X page(s): 1372, figs 9-13