Littorina is a genus of small sea snails, marine gastropod molluscs in the family Littorinidae, the winkles or periwinkles. [ 2 ] These small snails live in the tidal zone of rocky shores.

Littorina is a classic example: in England L. neritoides lives in crevices of exposed rocks above normal high water but releases floating (pelagic) egg capsules during fortnightly high tides or storms; L. littorea, on the lower half of the shore, also has pelagic egg capsules,…

Littorina littorea is the most abundant herbivorous intertidal invertebrate on rocky shores in the Gulf of Maine. Removal experiments indicated that L. littorea did not graze significantly on the dominant alga, Chondrus crispus , when it was already established, but did affect algal succession by grazing on emphemeral algae which compete with ...

The common periwinkle or winkle (Littorina littorea) is a species of small edible whelk or sea snail, a marine gastropod mollusc that has gills and an operculum, and is classified within the family Littorinidae, the periwinkles.

Littorina littorea. Common Name. common periwinkle. Kingdom. Animalia. Location in Taxonomic Tree . Genus. Littorina. Species. Littorina littorea. Identification Numbers. TSN: 70419. Geography. Launch Interactive Map. Working with others to conserve, protect and enhance fish, wildlife, plants and their habitats for the continuing benefit of the ...

2024年10月28日 · Periwinkle (Littorina littorea) - Alikruik Taxonomy: The Periwinkle belongs to the Littorinidae family, known as sea snails. These small mollusks are well-adapted to tidal environments and are found in various parts of the world.

2009年12月15日 · This datasheet on Littorina littorea covers Identity, Overview, Distribution, Dispersal, Diagnosis, Biology & Ecology, Environmental Requirements, Natural Enemies, Impacts, Uses, Prevention/Control, Further Information.

2021年8月24日 · Common Periwinkle (Littorina littorea) Tentacles: The tentacles on their head are sensory organs that are used to see and taste. Movement: They have a strong muscular foot (which is the main part of the body that we see outside of the shell) that helps them to slide along the ground and to hold on tight to the rocks when the waves are crashing ...

The common periwinkle, Littorina littorea, is the largest, most common and widespread of the northern species. It may reach a length of 4 centimetres (1 1 / 2 inches), is usually dark gray, and has a solid spiral (turbinate) shell that readily withstands the buffeting of waves.

2003年3月1日 · With the periwinkles (genus Littorina) as a model group, I review strategies for coping with small-scale heterogeneous environments and what implications these strategies have on the evolution of these species.