MolluscaBase name details
basis of record
Reid, D. G. (1989). The comparative morphology, phylogeny and evolution of the gastropod family Littorinidae. <em>Philosophical Transactions of the Royal Society B.</em> 324: 1-110., available online at https://royalsocietypublishing.org/doi/pdf/10.1098/rstb.1989.0040 [details]
additional source
Williams S.T. & Reid D.G. (2004). Speciation and diversity on tropical rocky shores: a global phylogeny of snails of the genus <i>Echinolittorina</i>. <i>Evolution 58(10)</i>: 2227–2251 [details]