Advances in Littorinid Biology

Resource allocation, demography and the radiation of life histories in rough periwinkles (Gastropoda).- TBT effects on the female genital system of Littorina littorea: a possible indicator of tributyltin pollution.- Comparison of imposex response in three Prosobranch species.- Validation of a planimetric procedure to quantify stress in Littorina littorea (Gastropoda: Mollusca): is it independent of the reproductive cycle?.- Fine structure of the cephalic sensory organ in veliger larvae of Littorina littorea (L.) Mesogastropoda, Littorinidae).- Egg capsule morphology of five Hong Kong rocky shore littorinids.- Shape variation in the rough periwinkle Littorina saxatilis on the west and south coasts of Britain.- Microgeographical variation in shell strength in the flat periwinkles Littorina obtusata and Littorina mariae.- Lack of metabolic temperature compensation in the intertidal gastropods, Littorina saxatilis (Olivi) and L. obtusata (L.).- Effects of ambient temperature and of temperature acclimation on nitrogen excretion and differential catabolism of protein and nonprotein resources in the intertidal snails, Littorina saxatilis (Olivi) and L. obtusata (L.).- Environmentally-induced variation in uric acid concentration and xanthine dehydrogenase activity in Littorina saxatilis (Olivi) and L. arcana Hannaford Ellis.- Crystalline calcium in littorinid mucus trails.- Allozyme comparison of four littorinid species morphologically similar to Littorina sitkana.- The relationship between position on shore and shell ornamentation in two size-dependent morphotypes of Littorina striata, with an estimate of evaporative water loss in these morphotypes and in Melarhaphe neritoides.- Maintenance of zonation patterns in two species of flat periwinkle, Littorina obtusata and L. mariae.- Seasonal migration promoting assortative mating in Littorina brevicula on a boulder shore in Japan.- Extreme morphological diversity between populations of Littorina obtusata (L.) from Iceland and the UK.- Frequency- and density-dependent sexual selection in natural populations of Galician Littorina saxatilis Olivi.- Dispersal and population expansion in a direct developing marine snail (Littorina saxatilis) following a severe population bottleneck.- A geographically-based study of shell shape in small rough periwinkles.