Snails are mostly known for their speed, or lack thereof. We get it, they’re not the fastest animal on Earth. But there are plenty of other things about snails to amaze. For instance, one species of snail can grow up to a foot and a half long! Here are 16 other fascinating facts about these slow-moving creatures: The only measurable difference between snails and slugs is that the former has a shell. In reality, slug families such as Limacidae and Milacidae have internal shell plates hidden within their bodies. Smaller shells can help the creatures to be more mobile, an evolutionary advantage when it comes to chasing down prey. Slugs and snails are mollusks, putting them in the same category as oysters, clams, and mussels. Gastropods (the taxonomic class for snails and slugs) are the largest group of mollusks, comprising more than 80 percent of living mollusk species. They’re also one of the most diverse groups of animals in terms of form, habitat, and behaviors. There may be as many 150,000 species of gastropods, and they live in almost all habitats, from deep ocean trenches to deserts.

A snail’s love dart. Image Credit: Joris M. Koene and Hinrich Schulenburg via Wikipedia // CC BY 2.0 One researcher argues that the myth of Cupid’s arrow might come from the mating rituals of Helix aspersa, a garden snail. fish tank gravel 20kgSome of these snails shoot “love darts” at the object of their affections, containing mucus that increases the chances of their sperm surviving (snails are hermaphrodites, and both individuals receive sperm during mating). fish tank filter weakHowever, in earlier times, people believed that these snot rockets were gifts of calcium or were an aphrodisiac, and McGill University’s Ron Chase argues that this might the inspiration behind Cupid’s desire-inducing quiver.fish tank heater water level

Researchers from Boston Children’s Hospital and MIT have developed an adhesive that mimics the stickiness of a slug’s slime, the same gel that allows marine snails to cling to rocks in the surf. The medical glue is designed for use in repairing heart defects, and would stick to even jagged surfaces where traditional sutures might leak. So far, it’s only been tested on pig hearts. Some studies have found that snail mucus might be useful to help wounds heal, possibly by triggering an immune response that helps skin cells regenerate. Some freshwater snails do not breathe underwater through gills, but rely on a type of lung, floating to the surface each time they need to breathe. Some snails have both gills and a lung. The apple snail has a siphon, a breathing tube that it can stretch up to the water’s surface to breathe without exposing itself to predators. The giant triton, Charonia tritonis, can grow up to a foot and a half long. It’s also an aggressive predator with a keen sense of smell, and it loves to eat starfish, paralyzing them with venomous saliva.

The sea snail was considered a symbol of rebirth and joy for Mesoamericans, who believed the whirled shape of its shell represented the circle of life. Conches are very large sea snails. People have used shell trumpets as musical instruments for millennia. Shell trumpets play an important part in the mythology of ancient Greece, India, and Hawaii. In ancient Greek mythology, for instance, the sea god Triton calmed the waves with a conch-shell trumpet. Some garden snails prefer eating from the same food source as another snail, even when there is other food readily available nearby. Hélène van Zuylen, a 19th-century French socialite and writer, completed the 1898 Paris–Amsterdam–Paris trail, reportedly becoming the first woman to compete in an international car race. Her husband, the president of the Automobile Club de France, raced under the name “Escargot.” Several species of terrestrial snails have hairy shells, especially the juveniles. Scientists postulate that this might be an adaptation that improves locomotion in wet environments, since hairy snails tend to come from humid areas.

Highsmith, whose novels Strangers on a Train and The Talented Mr. Ripley were adapted into now-famous films, reportedly preferred mollusks to people. She kept around 300 snails as pets, and they appear in several of her literary works. In a biography of the writer, author Joan Schenkar quotes someone describing Highsmith as “the woman who produced snails from her handbag and encouraged them to leave sticky trails all over her host’s tabletop.” The recently discovered Angustopila dominikae may be the smallest land snail ever found, with a shell just 0.03 inches tall. If you lined 10 of them up in a row, they could all march through the eye of a needle together. Any snail shorter than 0.2 inches officially qualifies as a microgastropod.Home : Fishing : Saltwater Fishing : Recreational Regulations : Marine Life Recreational Harvest of Marine Life (Aquarium) Species Freshwater FishingSaltwater FishingLatest NewsRecreational RegulationsFederal WatersFish HandlingFull Text Rule by SpeciesGulf Reef Fish SurveyHistoryLionfishFisheries MapsReef Fish Gear RulesCommercialAngler RecognitionRulemakingArtificial ReefsFish IDTrap & DebrisOutreach and Education ProgramsSaltwater PublicationsSport Fish RestorationPersons with DisabilitiesOutfitters & Guides

Requirements for Recreational Marine Life Harvest Recreational saltwater fishing license Organisms must be landed and kept alive A continuously circulating live well, aeration or oxygenation system of adequate size to maintain these organisms in a healthy condition State regulations for marine life apply in federal waters Hand held net: a landing or dip net. A portion of the bag may be constructed of clear plastic material rather than mesh. Drop net: a small, usually circular net with weights attached along the outer edge and a single float in the center, used by a diver to enclose and concentrate tropical fish. Barrier net (fence net): a seine used beneath the surface of the water by a diver to enclose and concentrate tropical fish. The net may be made of nylon or monofilament. Slurp gun: a self-contained, handheld device that captures tropical fish by rapidly drawing seawater containing such fish into a closed chamber. Use of quinaldine is prohibited.

Use of power tools for harvest of octocorals is prohibited Bag Limit: 20 organisms per person per day; See charts below for more details. Allowable substrate: see species specifications in tables. Various closed areas exist. See regulations for Florida Keys National Marine Sanctuary, Everglades National Park, Biscayne National Park, national wildlife refuges and Florida's State Parks before collecting in these areas. Sale of recreationally caught marine life organisms is prohibited. † Some organisms have additional gear limitations.  Additional rules apply to the collection of shells containing live organisms in Lee and Manatee counties. Regulated Marine Life Species, Size Limits, and Other Restrictions: Marine Life - Fish SpeciesRemarks♦Size Limits (total length unless otherwise noted) 5 angelfish per person/per day Angelfish (Pomacanthus family) including hybrids: 1 1/2 -8" slot limit               Angelfish (Holacanthus family) except rock beauty: 1 3/4 -8" slot limit               Rock Beauty (Holacanthus tricolor): 2-5" slot limit

Except Gray Triggerfish (Balistes capriscus), Ocean Triggerfish (Canthidermis sufflamen) and unicorn filefish Maximum size limit: 2" Except reef fish** and Longtail Bass (Hemanthias leptus) Maximum size limit: 4" Maximum size limit: 12" Minimum size limit: 1 1/2" Tangs and Surgeonfish (Family Acanthuridae) Maximum size limit (fork length): 9" Wrasse/ Hogfish/ Razorfish (Family Labridae) Except Hog Snapper (Lachnolaimus maximus) Spanish Hogfish (Bodianus rufus): 2-8" slot limitCuban Hogfish (Bodianus pulchellus): 3-8" slot limit ♦Other Marine Life Fish Include: Blennies (Families Clinidae and Blenniidae) Striped Burrfish (Chilomycterus schoepfi) Moray Eels (Family Muraenidae) Snake Eels (Genera Myrichthys and Myrophis of the Family Ophichthidae) High-hat/Jackknife-fish/Spotted Drum/Cubbyu (Genus Equetus of the Family Sciaenidae) Sharpnose Puffer (Canthigaster rostrata) Reef Croakers (Odontoscion dentex)

Seahorses and Pipefish (Family Syngnathidae) *Unless otherwise noted, combined bag limit of 20 marine life fish and invertebrates per person per day, only 5 of any one species allowed. A 2-day possession limit also applies (40 total organisms, only 10 of any one species). **Such as groupers, snappers, seabass and amberjacks. Must abide by regulations for these species in Rule 68B-14 F.A.C. . Marine Life - Invertebrates Anemones (Orders Actiniaria, Zoanthidea, Corallimorpharia, and Ceriantharia) Giant anemone (Condylactis gigantea) prohibited. Corallimorphs and Zoanthids: No more than 5 single polyps of each may be landed per person per day, must be harvested with a flexible blade no wider than 2" such as a putty knife, razor blade, or paint scraper. Conch, Queen (Strombus gigas)Hard (Stony) (Order Scleractinia), Fire (Genus Millepora, Black (Order Antipatharia) Corals, Soft (Subclass Octocorallia) No more than 6 octocoral colonies per person per day or 70,000 colonies annually;

harvest of attached substrate within 1" of base is permitted; harvest closes in response to federal octocoral closures; Harvest of Venus Sea Fan (Gorgonia flabellum) and Common (Purple) Sea Fan (Gorgonia ventalina) prohibited. Areas closed to octocoral harvest in Atlantic federal waters off Florida: Atlantic federal waters north of Cape Canaveral, Stetson-Miami Terrace Coral Habitat Area of Particular Concern (CHAPC) and Pourtales Terrace CHAPC Crab, Hermit (Families Diogenidae, Paguridae, Parapaguridae, and Pylochelidae) Except Land Hermit Crabs (Family Coenobitidae) Crab, Horseshoe (Limulus polyphemus) Recreational harvest prohibited (includes rock made by sabellarid tubeworms) Except Common Octopus (Octopodus vulgaris) Harvest of Fire Coral (Family Milleporidae) prohibited Sponges (Class Demospongiae, Order Dictyoceratida) Except Sheepswool, Yellow, Grass, Glove, Finger, Wire, Reef, and Velvet Sponges; 5 sponges per harvester per day in any combination;

harvest of substrate within 1" of base permitted north and west of the southernmost point of Egmont Key, no substrate allowed south of Egmont Key Harvest of Bahama Starfish (Oreaster reticulatus) prohibited Except Sand Dollars & Sea Biscuits (Order Clypeasteroidea); harvest of Longspine Urchin (Diadema antillarum) prohibited ♦Other Marine Life Invertebrates Include: Decorator (Furcate Spider) Crab (Stenocionops furcatus) False Arrow Crab (Metoporhaphis calcarata) Nimble Spray (Urchin) Crab (Percnon gibbesi) Spotted Porcelain Crab (Porcellana sayana) Yellowline Arrow Crab (Stenorhynchus seticornis) Upside-down Jellyfish (Genus Cassiopea) Nudibranchs/Sea Slugs (Subclass Opisthobranchia) Sea Cucumbers (Class Holothuroidea) Sea Lilies (Class Crinoidea) Cleaner/Peppermint Shrimp (Genera Periclimenesor Lysmata) Coral Shrimp (Genus Stenopus) Snapping Shrimp (Family Alpheidae) Featherduster Worms/Calcareous Tube Worms (Families Sabellidae and Serpulidae).