Summary ⁶

Littoraria irrorata, common name the Marsh periwinkle, is a species of sea snail, a marine gastropod mollusk in the family Littorinidae.

Description ⁷

The marsh periwinkle, Littorina irrorata, is an abundant snail in the salt marshes of the western Atlantic. The shell is elongate conic in shape, longer than it is wide (Andrews 1994). Coloration of the shell is dull grayish white with tiny dashes of reddish brown on the ridges of the spiral. Eight to ten gradually increasing flat whorls comprise the shell, with the body whorl measuring about half of the total height. The aperture is oval with a sharp outer tip and regular grooves on the inside edge.

Sources and Credits

1. (c) Femorale, some rights reserved (CC BY-NC), http://www.femorale.com/shellphotos/photos41/82127.jpg
2. (c) Femorale, some rights reserved (CC BY-NC), http://www.femorale.com/shellphotos/photos41/82126.jpg
3. (c) Cynthia Sims Parr, Animal Diversity Web, some rights reserved (CC BY-SA), https://animaldiversity.org/collections/contributors/cynthia_parr/sept03_008/medium.jpg
4. (c) Chris Meyer, some rights reserved (CC BY-NC-SA), https://calphotos.berkeley.edu/imgs/512x768/4444_4444/0910/0676.jpeg
5. (c) Chris Meyer, some rights reserved (CC BY-NC-SA), https://calphotos.berkeley.edu/imgs/512x768/4444_4444/0910/0677.jpeg
6. (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Littorina_irrorata
7. (c) Smithsonian Marine Station at Fort Pierce, some rights reserved (CC BY-NC-SA), http://eol.org/data_objects/11527353

More Info

• iNat taxon page
• Animal Diversity Web
• Biodiversity Heritage Library
• BOLD Systems BIN search
• Global Biodiversity Information Facility (GBIF)
• SeaLifeBase
• World Register of Marine Species

Range Map

(c) Discover Life and original sources, some rights reserved (CC-BY-NC-SA)

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