# Threeline Mudsnail (*Ilyanassa trivittata*) The Threeline Mudsnail is a small, slimy creature that lives in muddy waters. It has a special shell with three lines that help it blend in with its home. - **Category:** [Invertebrate](https://www.snappit.app/explore/categories/invertebrate) - **Rarity:** Common - **Danger:** 1/5 · Very low - **Snaps:** 3 - **Habitat:** Wetlands ![Threeline Mudsnail](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Tritia_trivittata_001.jpg&width=800) Photo: Naturalis Biodiversity Center, CC0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Tritia_trivittata_001.jpg) ## Appearance The Threeline Mudsnail has a small, conical shell, typically grayish to pale brown, often adorned with three faint darker spiral lines. Its distinctive pointed spire and smooth surface help it blend into muddy seafloors and identify it from other mudsnails. ## Taxonomy - **Kingdom:** Animalia - **Phylum:** Mollusca - **Class:** Gastropoda - **Order:** Neogastropoda - **Family:** Nassariidae - **Genus:** Ilyanassa ## Interesting facts - Even though they live in mud, their shells often host tiny algae or other creatures! - If a predator approaches, they can quickly pull their whole body inside their sturdy shell! - These snails are excellent underwater vacuum cleaners, tidying up the seafloor! - They lay their eggs in tiny capsules that look like miniature bumpy beads. ## Special abilities - **Scent Detective:** Threeline Mudsnail can detect food from a distance because it has powerful chemoreceptors that help them find decaying matter in murky water. - **Shell Fortress:** Threeline Mudsnail has a hard, spiral shell that helps them retreat completely inside for protection from predators and strong currents. - **Sticky Foot:** Threeline Mudsnail can cling tightly to surfaces because it has a strong muscular foot that helps them navigate diverse underwater terrains. - **Rapid Scavenger:** Threeline Mudsnail can rapidly consume decaying organisms because it has a specialized radula that helps them efficiently process detritus. ## Measurements & details - **Size:** 10-20 mm - **Lifespan:** 730-1095 days - **Leg Count:** 1 ## Diet & Feeding These tiny scavengers clean up the ocean floor by eating dead plants and animals. - **Primary Foods:** dead fish, decaying algae, marine detritus, small invertebrates, carrion - **Foraging Method:** Foraging ## Ecological connections - **Eaten by:** [Blue Crab](https://www.snappit.app/explore/blue-crab) (*Callinectes sapidus*) — A common food source for many bottom-dwelling crabs. - **Eaten by:** Oyster Toadfish (*Opsanus tau*) — Opportunistic fish prey on mudsnails found on the seafloor. - **Eats:** [Eelgrass](https://www.snappit.app/explore/eelgrass) (*Zostera marina*) — Consumes decaying plant matter from seagrass beds. - **Eats:** Hard Clam (*Mercenaria mercenaria*) — Acts as a scavenger on dead bivalves. ## Traits - [Solitary](https://www.snappit.app/explore/traits/solitary): Solitary animals live alone for most of their lives, only interacting with others for mating or parental care. - [Camouflaged](https://www.snappit.app/explore/traits/camouflaged): Camouflaged describes organisms that possess coloring or patterns that allow them to blend into their environment. - [Filter Feeder](https://www.snappit.app/explore/traits/filter-feeder): Filter feeders obtain nutrients by straining suspended food particles and small organisms from water. - [Herbivorous](https://www.snappit.app/explore/traits/herbivorous): This trait characterizes organisms whose diet consists entirely or primarily of plant material. - [Decomposer](https://www.snappit.app/explore/traits/decomposer): Describes organisms that break down dead organic material, recycling nutrients back into the ecosystem. - [Wetland](https://www.snappit.app/explore/traits/wetland): This habitat trait identifies species found in wetlands, which are areas of land saturated with water, either permanently or seasonally, including marshes, swamps, and bogs. - [Freshwater](https://www.snappit.app/explore/traits/freshwater): Freshwater habitats include non-saline aquatic environments such as rivers, lakes, ponds, and wetlands, vital for numerous species. - [Keystone Species](https://www.snappit.app/explore/traits/keystone-species): Describes a species whose presence and role have a disproportionately large effect on its environment. - [Miniature](https://www.snappit.app/explore/traits/miniature): Pertaining to species that are significantly smaller than typical or average for their kind. - [Aquatic](https://www.snappit.app/explore/traits/aquatic): Aquatic habitats encompass environments where organisms live predominantly in water, including oceans, rivers, lakes, and wetlands. ## Collections - [Insects](https://www.snappit.app/explore/collections/insects) ## Safety **Danger:** 1/5 · Very low Always wash your hands after touching snails, as they can carry germs. ## Frequently Asked Questions ### How to identify Threeline Mudsnail? Compare body symmetry, shells, segments, legs, tentacles and how the animal moves. Invertebrates span many unrelated groups, so start with body structure. Invertebrate Identifier: upload a photo and compare the visible details. ### How big is Threeline Mudsnail? 10-20 mm ### How long does Threeline Mudsnail live? 730-1095 days ### What does Threeline Mudsnail eat? These tiny scavengers clean up the ocean floor by eating dead plants and animals. ### Where is Threeline Mudsnail usually found? Wetlands ### How does Threeline Mudsnail hunt? Foraging ### How many legs does Threeline Mudsnail have? 1 ## Where to spot - [Ocean Drive Historic District](https://www.snappit.app/guides/places/ocean-drive-historic-district) — US · Historic District - [Nantucket Historic District](https://www.snappit.app/guides/places/nantucket-historic-district) — Massachusetts, US · Historic District - [Old Saybrook South Green](https://www.snappit.app/guides/places/old-saybrook-south-green) — Connecticut, US · Historic District - [Maria Mitchell Aquarium](https://www.snappit.app/guides/places/maria-mitchell-aquarium) — Massachusetts, US · Zoo [View all places to see Threeline Mudsnail](https://www.snappit.app/guides/where-to-see/threeline-mudsnail) ## 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: [Threeline Mudsnail: Facts & Places to See — Snappit](https://www.snappit.app/explore/threeline-mudsnail)