Gastropods 

Family Littorinidae










Home > Northwest Shells & Marine Life > PNW Shells & Marine Life Photos > Gastropods >  Gastropods - Littorinidae  
Click on photo to enlarge.  Scale line in photo equals 1cm unless otherwise specified.
* Species which are commonly encountered on the beach.
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Lacuna variegata Lacuna variegata
                                                                                                 photographed subtidally
Lacuna variegata Carpenter, 1864
Variable Lacuna *















Lacuna vincta Lacuna vincta
                                                                                                               photographed intertidally
Lacuna vincta (Montagu, 1803)
Wide Lacuna













 
















Littorina scutulata
sometimes exhibits fine spiral ridges

Littorina sitkana Littorina sitkana Littorina sitkana
                                                                                                                                 photographed intertidally
Littorina sitkana Philippi, 1846
Sitka Periwinkle *




Littorina scutulata Littorina scutulata Littorina scutulata
                                                                                                                                photographed intertidally






Littorina scutulata Gould, 1849
Checkered Periwinkle *




Littorina subrotundata, barnacle ecotype Littorina subrotundata, marsh ecotype
barnacle ecotype                      salt marsh ecotype
Littorina subrotundata (Carpenter, 1864)
Salt Marsh Periwinkle



















This page last revised: 8-17-2011  
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