Progress in Littorinid and Muricid Biology : Proceedings of the Second European Meeting on Littorinid Biology, Tjärnö Marine Biological Laboratory, Sweden, July 4-8, 1988

Littoral gastropods of the families Littorinidae and Muricidae are well studied compared to most marine taxa, yet there remain many basic problems concerning their taxonomy, ecology and evolutionary biology. In other words, we know these snails well enough to realize just how little we really know about them. This awareness prompted the First European Meeting on Littorinid Biology held at the British Museum in London on 26th November 1986, and the discussion continued through the Second Meeting on Littorinid Biology, held at the Tjarno Marine Biological Laboratory, Sweden, from 4th to 8th July 1988. During the Tjiirno meeting, it was agreed to have a third meeting at Dale, Pembroke shire, U.K. in 1990. Twenty-two people attended the Tjarno meeting, and a further ten contributed as co-authors to the papers that were presented. These covered research in progress in a broad range of topics, and geo­ graphical areas. Unfortunately, Cesare Sacchi and Domenico Voltolina, as well as Elisabeth Boulding were not able to attend the meeting in person, but their contributions were ably presented by David Reid and Richard Palmer, respectively. We also regret that one of us, C.E., and several of our Russian colleagues, did not have the opportunity to come. Front Matter....Pages i-xii A cladistic phylogeny of the genus Littorina (Gastropoda): implications for evolution of reproductive strategies and for classification....Pages 1-19 Distribution of the species of rough periwinkle ( Littorina ) in Great Britain....Pages 21-27 Estimating the phylogeny in mollusc Littorina saxatilis (Olivi) from enzyme data: methodological considerations....Pages 29-40 Are the opposing selection pressures on exposed and protected shores sufficient to maintain genetic differentiation between gastropod populations with high intermigration rates?....Pages 41-52 Biochemical genetic variation in the genus Littorina (Prosobranchia: Mollusca)....Pages 53-69 Littorina neglecta Bean, a morphological form within the variable species Littorina saxatilis (Olivi)?....Pages 71-87 Genetic variation within Littorina saxatilis (Olivi) and Littorina neglecta Bean: Is L. neglecta a good species ?....Pages 89-97 Rapid colonization of Belgian breakwaters by the direct developer, Littorina saxatilis (Olivi) (Prosobranchia, Mollusca)....Pages 99-108 Hybridisation in the Littorina saxatilis species complex (Prosobranchia : Mollusca)....Pages 109-116 Scraping a living: a review of littorinid grazing....Pages 117-138 Littorina mariae — a factor structuring low shore communities?....Pages 139-146 Field observations on the feeding habits of Littorina scutulata Gould and L. sitkana Philippi (Gastropoda, Prosobranchia) of southern Vancouver Island (British Columbia, Canada)....Pages 147-154 Effect of crab effluent and scent of damaged conspecifics on feeding, growth, and shell morphology of the Atlantic dogwhelk Nucella lapillus (L.)....Pages 155-182 The relationship between flat periwinkle life histories and digenean infections....Pages 183-190 Feeding behaviour in Littorina littorea : a study of the effects of ingestive conditioning and previous dietary history on food preference and rates of consumption....Pages 191-198 Shell microstructure and mineralogy of the Littorinidae: ecological and evolutionary significance....Pages 199-215 Differences in shell properties between morphs of Littoraria pallescens ....Pages 217-221 Adaptive and non-adaptive variation in two species of rough periwinkle ( Littorina ) on British shores....Pages 223-231 Distribution, abundance and shell morphology of Littorina saxatilis (Olivi) and Littorina arcana Hannaford Ellis at Robin Hood’s Bay, North Yorkshire....Pages 233-240 Thermal tolerance, evaporative water loss, air-water oxygen consumption and zonation of intertidal prosobranchs: a new synthesis....Pages 241-260 Mate discrimination in Littorina littorea (L.) and L. saxatilis (Olivi) (Mollusca: Prosobranchia)....Pages 261-270 Epilogue....Pages 271-273 Back Matter....Pages 275-285