# Atlantic Ribbed Mussel (*geukensia demissa*) The Atlantic Ribbed Mussel is a cool little creature that helps clean the water by filtering out tiny particles! They have unique ribbed shells that make them look super interesting! - **Category:** [Invertebrate](https://www.snappit.app/explore/categories/invertebrate) - **Rarity:** Common - **Danger:** 0/5 · No known danger - **Snaps:** 4 - **Habitat:** They live in shallow coastal waters and estuaries along the Atlantic coast. - **Also known as:** Common Ribbed Mussel, Eastern Ribbed Mussel, Ribbed Mussel ![Atlantic Ribbed Mussel](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Nerr0310_-_Flickr_-_NOAA_Photo_Library.jpg&width=800) Photo: Joan Muller., Public domain · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Nerr0310_-_Flickr_-_NOAA_Photo_Library.jpg) ## Appearance The Atlantic Ribbed Mussel has an elongated, dark brown to purplish-black shell, often eroded with age. Its distinguishing feature is the series of prominent, concentric ribs running across its surface, giving it a corrugated texture. This ribbed texture makes it visually different from smoother mussel species. ## Taxonomy - **Kingdom:** Animalia - **Phylum:** Mollusca - **Class:** Bivalvia - **Order:** Mytilida - **Family:** Mytilidae - **Genus:** Geukensia ## Interesting facts - A single mussel can filter over a gallon of water every hour, making water sparkling clean! - Atlantic Ribbed Mussels help build living reefs, providing homes for many tiny creatures. - These mussels create their own glue-like ropes to stick firmly to marsh grass and rocks! - They are like ocean thermometers; their growth rings can tell scientists about past water temperatures. ## Special abilities - **Sticky Feet:** Atlantic Ribbed Mussel can securely anchor itself with strong byssal threads because of special glands that produce them. - **Water Purifier:** Atlantic Ribbed Mussel can filter tiny food particles from water, helping to clean its marshy habitat. - **Tide Survivor:** Atlantic Ribbed Mussel can survive many hours out of water because it can tightly close its shell. ## Measurements & details - **Length:** 10 cm - **Weight:** 20 g - **Lifespan:** 15 years ## Diet & Feeding They slurp up tiny bits of food from the water, acting like nature's vacuum cleaners! - **Primary Foods:** Phytoplankton, Zooplankton larvae, Detritus, Microscopic particles - **Foraging Method:** Filter feeding ## Ecological connections - **Eaten by:** [Blue Crab](https://www.snappit.app/explore/blue-crab) (*Callinectes sapidus*) — Crabs are a common predator on these mussels. - **Eaten by:** [Herring Gull](https://www.snappit.app/explore/herring-gull) (*Larus argentatus*) — Gulls drop mussels to crack their shells open. - **Depends on:** Smooth Cordgrass (*Spartina alterniflora*) — Mussels attach to its stems for stability and height. - **Shelter:** Common Mud Crab (*Panopeus herbstii*) — Mud crabs hide among mussel clusters. ## Traits - [Social](https://www.snappit.app/explore/traits/social): Social animals live in organized groups, cooperating for survival benefits such as foraging, defense, and raising offspring. - [Filter Feeder](https://www.snappit.app/explore/traits/filter-feeder): Filter feeders obtain nutrients by straining suspended food particles and small organisms from water. - [Aquatic](https://www.snappit.app/explore/traits/aquatic): Aquatic habitats encompass environments where organisms live predominantly in water, including oceans, rivers, lakes, and wetlands. - [Marine](https://www.snappit.app/explore/traits/marine): Marine habitats encompass all saltwater environments of the Earth's oceans, supporting an immense diversity of aquatic life. ## Collections - [Invertebrates](https://www.snappit.app/explore/collections/invertebrates) ## Safety **Danger:** 0/5 · No known danger No special safety notes yet. ## Frequently Asked Questions ### How to identify Atlantic Ribbed Mussel? Compare the overall shape, opening, spiral, ribs, hinge and surface sculpture. Beach shells often lose the colors and sharp edges they had on the living animal, so shape does most of the work. Seashell Identifier: upload a photo and compare the visible details. ### How long is Atlantic Ribbed Mussel? 10 cm ### How much does Atlantic Ribbed Mussel weigh? 20 g ### How long does Atlantic Ribbed Mussel live? 15 years ### What does Atlantic Ribbed Mussel eat? They slurp up tiny bits of food from the water, acting like nature's vacuum cleaners! ### Where is Atlantic Ribbed Mussel usually found? They live in shallow coastal waters and estuaries along the Atlantic coast. ### How does Atlantic Ribbed Mussel hunt? Filter feeding ## Where to spot - [Compo–Owenoke Historic District](https://www.snappit.app/guides/places/compo-owenoke-historic-district) — US · Historic District - [Blithewold Mansion, Gardens and Arboretum](https://www.snappit.app/guides/places/blithewold-mansion-gardens-and-arboretum) — Rhode Island, US · Botanical Garden - [Bridgeport Downtown South Historic District](https://www.snappit.app/guides/places/bridgeport-downtown-south-historic-district) — Connecticut, US · Historic District - [Nantucket Historic District](https://www.snappit.app/guides/places/nantucket-historic-district) — Massachusetts, US · Historic District - [Stone Harbor Bird Sanctuary](https://www.snappit.app/guides/places/stone-harbor-bird-sanctuary) — US · Nature Reserve - [Delaware Seashore State Park](https://www.snappit.app/guides/places/delaware-seashore-state-park) — Delaware, US · State Park [View all places to see Atlantic Ribbed Mussel](https://www.snappit.app/guides/where-to-see/atlantic-ribbed-mussel) ## More Invertebrate - [Coral](https://www.snappit.app/explore/coral) - [Crab Spider](https://www.snappit.app/explore/crab-spider) (*Mecaphesa asperata*) - [Garden Spider](https://www.snappit.app/explore/garden-spider) (*Araneus diadematus*) - [Brown Recluse Spider](https://www.snappit.app/explore/brown-recluse-spider) (*Loxosceles reclusa*) --- Source: [Atlantic Ribbed Mussel: Facts & Places to See — Snappit](https://www.snappit.app/explore/atlantic-ribbed-mussel)