analysis of intraspecific competition in an intertidal gastropod Littorina unifasciata. Australian Journal of Marine and Freshwater Research 32: 573–589 McKillup, S.C. 1981. Avoidance of the Predatory Whelk Lepsiella scobina albomarginata by Littorina cincta and Littorina unifasciata. The Veliger 24(2): 167–171 Reid, D.G. (1989) The comparative morphology, phylogeny and evolution of the gastropod family Littorinidae. Philosophical Transactions of the Royal Society of London, Series B 324: 1–110 McMahon, R.F. 1992. Microgeographic variation in the shell morphometrics of Nodilittorina unifasciata from southwestern Australia in relation to wave exposure off shore. pp. 107–117 in Grahame, J., Mill, P.J. & Reid, D.G. (eds). Proceedings of the Third International Symposium on Littorinid Biology. London : Malacological Society of London. Wilson, B. 1993. Australian Marine Shells. Prosobranch Gastropods. Kallaroo, Western Australia : Odyssey Publishing Vol. 1 408 pp. G.J. Edgar, Australian Marine Life ; Reed New Holland Publishers (1997) Reid, D.G. & Williams, S.T. (2004) The subfamily Littorininae (Gastropoda: Littorinidae) in the temperate Southern Hemisphere: the genera Nodilittorina, Austrolittorina and Afrolittorina. Records of the Australian Museum 56: 75122. External links Image of a cluster of individuals: Historical descriptions and illustrations: Gray, John Edward (1826). "Mollusca" (Part of "Appendix B: containing a list and description of the subjects of natural history collected during Captain King's survey..." in King, Phillip P. Narrative of a survey of the intertropical and western coasts of Australia.). Species 48, p. 483. p. 479 Figures 8–11. Littorinidae Gastropods described in 1826 Taxa named by John Edward Gray