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.
- Gosner, KL. 1978. A field guide to the Atlantic seashore: Invertebrates and seaweeds of the Atlantic coast from the Bay of Fundy to Cape Hatteras. Houghton Mifflin Co. Boston, MA. USA. 329 pp.
- Ruppert, EE. & RS Fox. 1988. Seashore animals of the Southeast: A guide to common shallow-water invertebrates of the southeastern Atlantic coast. University of SC Press. Columbia, SC. USA. 429 pp.
- Kaplan, EH. 1988. A field guide to southeastern and Caribbean seashores: Cape Hatteras to the Gulf coast, Florida, and the Caribbean. Houghton Mifflin Co. Boston, MA. USA. 425 pp.
- Ruppert, EE & RD Barnes. Invertebrate zoology, 6th edition. Saunders College Publishing. Orlando, FL. USA. 1056 pp.
- Abbott, RT. 1974. American seashells: the marine Mollusca of the Atlantic and Pacific coasts of North America. Van Nostrand Reinhold Co. New York, NY. USA.
- Abbott, RT & PA Morris. 1995. A field guide to shells: Atlantic and Gulf coasts and the West Indies, 4th edition. Houghton Mifflin Co. Boston, MA. USA.
- Andrews, J. 1994. A field guide to shells of the Florida coast. Gulf Publishing Co. Houston, Texas. USA. 182 pp.
- Bärlocher, F & SY Newell. 1994. Growth of the salt marsh periwinkle Littoraria irrorata on fungal and cordgrass diets. Mar. Biol. 118: 109-114.
- Bequaert, JC. 1943. The genus Littorina in the western Atlantic. Johnsonia. 1: 1-27.
- Crist, RW & WC Banta. 1983. Distribution of the marsh periwinkle Littorina irrorata (Say) in a Virginia salt marsh. Gulf Res. Rep. 7: 225-235.
- Graça, MA, Newell, SY & RT Kneib. 2000. Grazing rates of organic matter and living fungal biomass of decaying Spartina alterniflora by three species of salt-marsh invertebrates. Mar. Biol. 136: 281-289.
- Gustafson, DJ, Kilheffer, J & BR Silliman. 2006. Relative effects of Littoraria irrorata and Prokelisia marginata on Spartina alterniflora. Estuar. Coasts. 29: 639-644.
- Hamilton, PV. 1978. Intertidal distribution and long-term movements of Littorina irrorata (Mollusca: Gastropoda). Mar. Biol. 46: 49-58.
- Hutchens, JJ, Jr. & K Walters. 2006. Gastropod abundance and biomass relationships with salt marsh vegetation within ocean-dominated South Carolina, USA estuaries. J. Shellfish. Res. 25: 947-953.
- Newell, SY & F Bärlocher. Removal of fungal and total organic matter from decaying cordgrass leaves by shredder snails. J. Exp. Mar. Biol. Ecol. 171: 39-49.
- Schindler, DE, Johnson, BM, MacKay, NA, Bouwes, N & JF Kitchell. 1994. Crab: snail size-structured interactions and salt marsh predation gradients. Oecologia. 97: 49-61.
- Shirley, TC, Denoux, GJ & WB Stickle. 1978. Seasonal respiration in the marsh periwinkle, Littorina irrorata. Biol. Bull. 154: 322-334.
- Silliman, BR & MD Bertness. 2002. A trophic cascade regulates salt marsh primary production. Proc. Nat. Acad. Sci. 99: 10500-10505.
- Silliman, BR, Layman, CA, Geyer, K & JC Zieman. 2004. Predation by the black-clawed mud crab, Panopeus herbstii, in Mid-Atlantic salt marshes: further evidence for top-down control of marsh grass production. Estuaries. 27: 188-196.
- Silliman, BR, van de Koppel, Bertness, MD, Stanton, LE & LA Mendelssohn. 2005. Drought, snails, and large-scale die-off of southern US salt marshes. Science. 310: 1803-1806.
- Warren, JH. 1985. Climbing as an avoidance behavior in the salt marsh periwinkle, Littorina irrorata (Say). J. Exp. Mar. Biol. Ecol. 89: 11-28.
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