Periwinkle
Related Category: Zoology: Invertebrates
any of a group of marine gastropod mollusks having conical, spiral shells. Periwinkles feed on algae and seaweed.
Common Periwinkle Littorina littorea
The common periwinkle has a black to dark gray, sharply conical shell and slightly flattened tentacles, which in juveniles also have conspicuous black banding.
Marsh Periwinkle
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Periwinkles can survive in fresh water-like puddles made by rain-for several days; most marine animals cannot.
A periwinkle, like most molluscs, uses a radula (a rough tongue or band of horny teeth) to scrape diatoms and algae from rocks.
Edible periwinkle (Littorina littorea)
Periwinkles are a large family of gastropod molluscs found on the shore. The edible periwinkle is perhaps the best known species of this... More 8 Images 2 Videos ...
Periwinkle (Littorina) Body Parts - Received from Marcia in Victoria, B.C.
Little Blue Periwinkle
Little Blue Periwinkle grouped together
Little Blue Periwinkle in a line on rock
Little Broad-nosed Bat
Little Broad-nosed Bat
Little Dory, Diretmus argenteus Johnson, 1863 ...
Freshwater mussels (Anodonta californiensia), freshwater periwinkles (Oxytrema silicula), and unidentified clams and snails have been reported in the northern river otter's diet but are not important food items [4].
The partial dissection of a male specimen of the common periwinkle, Littorina littoralis, drawn in fig. 20, will serve to exhibit the disposition of viscera which prevails in the group.
You can never tell if that old whelk or periwinkle shell is home to one of these crustaceans. A hermit crab appropriates shells to protect its soft twisted abdomen from predators.
This strong-jawed turtle is well suited for eating periwinkles, mussels, and crabs. In the past, it was heavily used in soups because of its sweet meat. Today terrapins are threatened by pollution and coastal development.
The marine shelled species of gastropod include edible species such as abalone, conches, periwinkles, whelks, and numerous other sea snails which have coiled seashells.
Adult Food: Nectar from flowers including lantana, periwinkle, shepherd's needle, and wild coffee.
Habitat: Subtropical shady hammocks and neighboring open areas; gardens with ornamental cycads.
Very little is known about their diet or growth, however, stomach contents of specimens taken in Yarmouth Harbour yielded amphipods, small periwinkles, and marine worms.
What really sets this bird apart, however, is a vibrant bill of hot pink and periwinkle set off by those signature cheeks of snowy white. Like most southern ducks, this one is not dimorphic which means the males and females are equally enchanting.
Budgies are generally green in nature, but breeders have produced them in myriad colors and shades, from white to turquoise to periwinkle. You can even find budgies that have a crest or curly feathers.
Size: ...
If you want to know what a lugworm looks like, how gumboot chitons reproduce, which clams can weigh up to ten pounds, or what predator is the Sitka periwinkle's worst nightmare, you'll find these answers and more in our invertebrate species profiles.
Barnacles, limpets, whelks, algae and periwinkles can often be found on the rocks in this zone. Other animals like crabs and sea stars aren't as common in this area because it gets so little sea water.
Gastropods are the most diverse of the mollusc groups. There are between 60,000 and 80,000 species of gastropods alive today. Gastropods include limpets, top shells, periwinkles, sundial shells, sea hares, nudibranchs, snails and slugs.
One made from the periwinkle plant is used to treat many forms of childhood leukemia. Who knows what will be found next? Your interest in the rain forest now could lead you to an important scientific discovery in the future! ...
 See also: Shell, Snail, Gastropod, Limpet, Diver
  
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