Snail: Wikis

  
  
  

Encyclopedia

From Wikipedia, the free encyclopedia

Helix pomatia, a species of land snail
.Snail is a common name for almost all members of the molluscan class Gastropoda that have coiled shells in the adult stage.^ Common name: brown garden snail.
  • Raising Snails, SRB 96-05 11 January 2010 1:22 UTC www.nal.usda.gov [Source type: Academic]

^ Scofftastically the freshwater snails - Oc gao - are not at all chewy and the green banana - chuoi xanh - is almost potato like in flavour and texture.

^ If well fed and not overcrowded, those snails that hatch at the start of the season will reach adult size and form a lip at the edge of their shell by the following June.
  • Raising Snails, SRB 96-05 11 January 2010 1:22 UTC www.nal.usda.gov [Source type: Academic]

.When the word is used in a general sense, it includes sea snails, land snails and freshwater snails.^ You will have better results if you use snails of the same kind and generation.
  • Raising Snails, SRB 96-05 11 January 2010 1:22 UTC www.nal.usda.gov [Source type: Academic]

^ Two genera of North American freshwater snails: Marstonia Baker, 1926 resureected to generic status, and Floridobia , new genus (Prosobranchia, Hydrobiidae, Nymphophilinae).
  • The Freshwater Snails of Florida A Manual for Identification 11 January 2010 1:22 UTC www.flmnh.ufl.edu [Source type: FILTERED WITH BAYES]

.Otherwise snail-like creatures that lack a shell (or have only a very small one) are called slugs.^ Introduced slug and snail varieties tend to be worse pests than native species, probably due in part to the lack of natural controls.
  • Raising Snails, SRB 96-05 11 January 2010 1:22 UTC www.nal.usda.gov [Source type: Academic]

^ D. "Only one of its kind in U.S. California snail rancher turns slippery mollusk into high-flown Escargot."
  • Raising Snails, SRB 96-05 11 January 2010 1:22 UTC www.nal.usda.gov [Source type: Academic]

^ Lack of access to good soil may cause fragile shells even when the snails have well-balanced feed; the snails growth may lag far behind the growth of other snails on good soil.
  • Raising Snails, SRB 96-05 11 January 2010 1:22 UTC www.nal.usda.gov [Source type: Academic]

Snails can be found in a wide range of environments including ditches, deserts, and the abyssal depths of the sea. Although many people are familiar with terrestrial snails, land snails are in the minority. Marine snails constitute the majority of snail species, and have much greater diversity and a greater biomass. .Numerous kinds of snail can also be found in fresh waters.^ Found in fresh and brackish water along the Atlantic coast of Florida north to Maryland .
  • The Freshwater Snails of Florida A Manual for Identification 11 January 2010 1:22 UTC www.flmnh.ufl.edu [Source type: FILTERED WITH BAYES]

^ Planorbid snails are restricted to fresh water and occur worldwide, being found on all continental landmasses and many oceanic islands.
  • The Freshwater Snails of Florida A Manual for Identification 11 January 2010 1:22 UTC www.flmnh.ufl.edu [Source type: FILTERED WITH BAYES]

^ This family of fresh and brackish water snails is found in Australia, southeast Asia, southern Africa, North America and South America.
  • The Freshwater Snails of Florida A Manual for Identification 11 January 2010 1:22 UTC www.flmnh.ufl.edu [Source type: FILTERED WITH BAYES]

.Many snails are herbivorous, though a few land species and many marine species are omnivores or predatory carnivores.^ Many North American snail species were described near the turn of the century by Walker (I 918).
  • The Freshwater Snails of Florida A Manual for Identification 11 January 2010 1:22 UTC www.flmnh.ufl.edu [Source type: FILTERED WITH BAYES]

^ This species is more adaptable to different climates and conditions than many snails, and is found in woods, fields, sand dunes, and gardens.
  • Raising Snails, SRB 96-05 11 January 2010 1:22 UTC www.nal.usda.gov [Source type: Academic]

^ There are, therefore, several giant land snails in Africa, and not just one species."
  • Raising Snails, SRB 96-05 11 January 2010 1:22 UTC www.nal.usda.gov [Source type: Academic]

.Snails that respire using a lung belong to the group Pulmonata, while those with gills form a paraphyletic group; in other words, snails with gills are divided into a number of taxonomic groups that are not very closely related.^ In large numbers, up to 3,000 snails per tree, it can ravage a garden in 24 hours and a citrus or other crop in a couple of nights.
  • Raising Snails, SRB 96-05 11 January 2010 1:22 UTC www.nal.usda.gov [Source type: Academic]

^ Live field samples should be divided into two groups, one to be preserved for shells, the other to be preserved for anatomical specimens.
  • The Freshwater Snails of Florida A Manual for Identification 11 January 2010 1:22 UTC www.flmnh.ufl.edu [Source type: FILTERED WITH BAYES]

^ On the other hand, snails in groups of about 100 seem to breed better than when only a few snails are confined together.
  • Raising Snails, SRB 96-05 11 January 2010 1:22 UTC www.nal.usda.gov [Source type: Academic]

.Snails with lungs and with gills have diversified widely enough over geological time that a few species with gills can be found on land, numerous species with a lung can be found in freshwater, and a few species with a lung can be found in the sea.^ "There is no such thing as the giant African or West African snail since there are many genera containing numerous species.
  • Raising Snails, SRB 96-05 11 January 2010 1:22 UTC www.nal.usda.gov [Source type: Academic]

^ This species is more adaptable to different climates and conditions than many snails, and is found in woods, fields, sand dunes, and gardens.
  • Raising Snails, SRB 96-05 11 January 2010 1:22 UTC www.nal.usda.gov [Source type: Academic]

^ North American freshwater snails: species list, ranges and illustrations.
  • The Freshwater Snails of Florida A Manual for Identification 11 January 2010 1:22 UTC www.flmnh.ufl.edu [Source type: FILTERED WITH BAYES]

.Most snails have thousands of microscopic tooth-like structures located on a ribbon-like tongue called a radula.^ Central tooth of radula with basocones located on fore or lateral wing of tooth (Figs.
  • The Freshwater Snails of Florida A Manual for Identification 11 January 2010 1:22 UTC www.flmnh.ufl.edu [Source type: FILTERED WITH BAYES]

.The radula works like a file, ripping the food into small pieces.^ He then cut the flesh into small pieces and gave some to the class to taste.

Contents

Types of snails by habitat

Slugs

.Gastropod species which lack a conspicuous shell are commonly called slugs rather than snails, although, other than having a reduced shell or no shell at all, there are really no appreciable differences between a slug and a snail except in habitat and behavior.^ No constant difference between the two species is apparent in the shell.
  • The Freshwater Snails of Florida A Manual for Identification 11 January 2010 1:22 UTC www.flmnh.ufl.edu [Source type: FILTERED WITH BAYES]

^ Dwarfing is quite common in snail farming and is attributable mainly to rearing conditions rather than heredity factors.
  • Raising Snails, SRB 96-05 11 January 2010 1:22 UTC www.nal.usda.gov [Source type: Academic]

^ This species is more adaptable to different climates and conditions than many snails, and is found in woods, fields, sand dunes, and gardens.
  • Raising Snails, SRB 96-05 11 January 2010 1:22 UTC www.nal.usda.gov [Source type: Academic]

.A shell-less animal is much more maneuverable and compressible, and thus even quite large land slugs can take advantage of habitats or retreats with very little space, squeezing themselves into places that would be inaccessible to a similar-sized snail, such as under loose bark on trees or under stone slabs, logs or wooden boards lying on the ground.^ Considering that the depth of Stellwagen Bank is roughly 100ft in depth, it takes little to no effort for one of these animals to dive to the bottom and up, no more effort than it takes a person to walk a few steps.

^ The bodies of large snails, such as viviparids and pilids, should be pulled from the shell.
  • The Freshwater Snails of Florida A Manual for Identification 11 January 2010 1:22 UTC www.flmnh.ufl.edu [Source type: FILTERED WITH BAYES]

^ If you manipulate the environment to get more early hatchlings, the size and number of snails that mature the following year will increase.
  • Raising Snails, SRB 96-05 11 January 2010 1:22 UTC www.nal.usda.gov [Source type: Academic]

.Taxonomic families of land slugs and sea slugs occur within numerous larger taxonomic groups of shelled species.^ The shell is very similar to that of Floridobia petrifons , which is in a different species-group by virtue of the glandular pattern on the verge.
  • The Freshwater Snails of Florida A Manual for Identification 11 January 2010 1:22 UTC www.flmnh.ufl.edu [Source type: FILTERED WITH BAYES]

^ The shell characters given above for separating the families apply only to Florida species.
  • The Freshwater Snails of Florida A Manual for Identification 11 January 2010 1:22 UTC www.flmnh.ufl.edu [Source type: FILTERED WITH BAYES]

.In other words, the reduction or loss of the shell has evolved many times independently within several very different lineages of gastropods, thus the various families of slugs are very often not closely related to one another.^ Shell thin, fragile, very much depressed, less than 0.25 times as high as long.
  • The Freshwater Snails of Florida A Manual for Identification 11 January 2010 1:22 UTC www.flmnh.ufl.edu [Source type: FILTERED WITH BAYES]

^ These creatures are also extremely independent and almost never seen with another, unless: they are a mother and calf in which they are together for up to a year; they are mating, in which they still do not keep any form of relationship that lasts substantial time; or they are feeding, where one whale hear the other and went to see if they could join.

^ Something very interesting was explained to us was that they rest differently than other animals.

Snails in cuisine

Cultural depictions

Moche land snails (Scutalus sp.), 200 AD. Larco Museum Collection, Lima, Peru.
Due to its slowness, the snail has traditionally been seen as a symbol of laziness. In Judeo-Christian culture, it has often been viewed as a manifestation of the deadly sin of sloth.[1] Psalms 58:8 uses snail slime as a metaphorical punishment.
Snails were widely noted and used in divination.[1] .The Greek poet Hesiod wrote that snails signified the time to harvest by climbing the stalks, while the Aztec moon god Tecciztecatl bore a snail shell on his back.^ I had them in France, mashed with God knows what into a vivid green paste and stuffed back into the shells from which they came.
  • Garden Snail Risotto | blogjam 11 January 2010 1:22 UTC www.blogjam.com [Source type: General]

^ Roasted snail shells have been found in archaeological excavations, an indication that snails have been eaten since prehistoric times.
  • Raising Snails, SRB 96-05 11 January 2010 1:22 UTC www.nal.usda.gov [Source type: Academic]

^ The snail's shell will hit the bent-back part of the screen before he can reach up and start crawling on it.
  • Raising Snails, SRB 96-05 11 January 2010 1:22 UTC www.nal.usda.gov [Source type: Academic]

This symbolised rebirth; the snail's penchant for appearing and disappearing was analogised with the moon.[2] .More recently, Carl Jung noted that the snail was representative of the self in dreams.^ A synopsis of the classification of the freshwater Mollusca of North America north of Mexico and a catalogue of the more recently described species with notes.
  • The Freshwater Snails of Florida A Manual for Identification 11 January 2010 1:22 UTC www.flmnh.ufl.edu [Source type: FILTERED WITH BAYES]

In psychology, the soft insides are analogous to the subconscious, as the shell is the conscious.[1]
.One expert, Professor Ronald Chase of McGill University in Montreal, has suggested that the ancient myth of Cupid's arrows might be based on early observations of the love dart behavior of the land snail species Helix aspersa.^ Field observations on feeding of the land snail Helix aspersa Muller.
  • Raising Snails, SRB 96-05 11 January 2010 1:22 UTC www.nal.usda.gov [Source type: Academic]

^ Changes in the reproductive system of the snail Helix aspersa caused by mucus from the love dart.
  • Raising Snails, SRB 96-05 11 January 2010 1:22 UTC www.nal.usda.gov [Source type: Academic]

^ Elements of cold hardiness in a littoral population of the land snail Helix aspersa (Gastropoda: Pulmonata).
  • Raising Snails, SRB 96-05 11 January 2010 1:22 UTC www.nal.usda.gov [Source type: Academic]

[3]
In contemporary speech, the expression "a snail's pace" is often used to describe a slow, inefficient process.
The phrase "snail mail" is used to mean regular postal service delivery of paper messages as opposed to the delivery of E-mail or electronic mail, which is virtually instantaneous.

See also

References

  1. ^ a b c de Vries, Ad (1976). Dictionary of Symbols and Imagery. Amsterdam: North-Holland Publishing Company. p. 430. ISBN 0-7204-8021-3. 
  2. ^ Cooper, JC (1992). Symbolic and Mythological Animals. London: Aquarian Press. p. 213. ISBN 1-85538-118-4. 
  3. ^ "Lovebirds and Love Darts: The Wild World of Mating". news.nationalgeographic.com. National Geographic Society. http://news.nationalgeographic.com/news/2004/02/0212_040213_lovebirds_2.html. Retrieved 2010-02-21. 

External links


1911 encyclopedia

Up to date as of January 14, 2010

From LoveToKnow 1911

SNAIL. In England the word "snail" in popular language is associated with Gasteropods which inhabit land or fresh water, and which possess large conspicuous spiral shells; terrestrial Gasteropods, in which the shell is rudimentary and concealed, are distinguished as "slugs." In Scotland the word "slug" is absent from the vernacular vocabulary, both shell-bearing and shell-less inland molluscs being known as snails. .Marine Gasteropods are occasionally termed "sea-snails," and the compounds "pond-snails," "river-snails," "water-snails" are in common use.^ Apple snails are easy animals that do well in a common aquarium or a pond.
  • How to take care of apple snails: food, housing and breeding. 11 January 2010 1:22 UTC www.applesnail.net [Source type: FILTERED WITH BAYES]

^ The term can more widely be used to describe any of the larger snails in this family, especially from the genera Achatina and Archachatina .
  • The World of Snails - Giant African Snails 11 January 2010 1:22 UTC www.freewebs.com [Source type: General]

^ The snail can live in rivers, ponds, swamps, canals, and paddy fields.
  • Expansion of the Golden Apple Snail, Pomacea Canaliculata, and Features of Its Habitat 11 January 2010 1:22 UTC www.agnet.org [Source type: Academic]

.The commonest land-snails are those species which constitute the family Helicidae, order Pulmonata, sub-order Stylommatophora. The families Limacidae, Arionidae and Oncidiidae of the same sub-order, include nearly all the slugs.^ This is the largest land snail species on Earth.
  • The World of Snails - Giant African Snails 11 January 2010 1:22 UTC www.freewebs.com [Source type: General]

^ My species, Helix aspersa, also known as the Brown Garden Snail and European Brown Snail, is one of the most common of the 40,000 land-based snails and slugs.
  • Snail Talk 11 January 2010 1:22 UTC www.squidoo.com [Source type: FILTERED WITH BAYES]

^ I have seen snails sold as mystery snails that are all different colors and obviously multiple species.

.The Oncidiidae are entitled to the name "sea-slugs," as they are shell-less Pulmonates living on the seashore, though not actually in the sea.^ If the water they live in is very soft, they can't grow their shell and become very vulnerable to attacks and to drowning.
  • Snails 11 January 2010 1:22 UTC www.thekrib.com [Source type: Original source]

^ Surprisingly, on some occasions they actually get named correctly, for Trochus , anyway.
  • The Grazing Snails, Part I - Turbo, Trochus, Astraea, and Kin by Ronald L. Shimek, Ph.D. - Reefkeeping.com 11 January 2010 1:22 UTC reefkeeping.com [Source type: FILTERED WITH BAYES]

^ Pulmonate snails usually lay their eggs in gelatinous masses under water (the Malaysian trumpet snail though is a live-bearer).

.The term "water-snails" includes the whole of the remaining sub-order of the Pulmonata, namely, the Basommatophora, in which the eyes are sessile, with the exception of the Auriculidae. The latter are terrestrial and occur mostly near the seashore.^ The Tracked Nerite Snail requires brackish water in order to breed successfully.
  • Tracked Nerite Snail .:. Neritina natalensis sp. "Tracked" .:. Freshwater Aquarium Snail Information Page 11 January 2010 1:22 UTC www.planetinverts.com [Source type: General]

^ The term Giant African Land Snail can refer to three species of terrestrial pulmonate snail from the family Achatinidae: Achatina fulica , Archachatina marginata and Achatina achatina .
  • The World of Snails - Giant African Snails 11 January 2010 1:22 UTC www.freewebs.com [Source type: General]

^ These cool water species of Tegula are harvested from the coast of either Baja California or California and sold under the name of "margarita" or "margarite" snails.
  • The Grazing Snails, Part I - Turbo, Trochus, Astraea, and Kin by Ronald L. Shimek, Ph.D. - Reefkeeping.com 11 January 2010 1:22 UTC reefkeeping.com [Source type: FILTERED WITH BAYES]

.Thus the whole of the Pulmonata (which breathe air, are destitute of gill-plumes and operculum and have a complicated hermaphrodite reproductive system) are either snails or slugs.^ Mud snail reproductive systems are reduced and inactive from about June to September in North Carolina.
  • Ilyanassa 11 January 2010 1:22 UTC webs.lander.edu [Source type: FILTERED WITH BAYES]

^ Snails, especially the air-breathing (versus strictly gill breathing) species, may function as bioassay organisms.
  • Snails- Bane/Boon, Selection/Elimination 11 January 2010 1:22 UTC wetwebmedia.com [Source type: FILTERED WITH BAYES]

^ When there isn't much oxygen in the water, the snails will regularly come to the surface to inhale fresh air through the breathing siphon .
  • How to take care of apple snails: food, housing and breeding. 11 January 2010 1:22 UTC www.applesnail.net [Source type: FILTERED WITH BAYES]

.But there are a considerable number of snails, both terrestrial and aquatic, which are not Pulmonates.^ There is considerable confusion regarding freshwater aquatic snails.

^ Actually snails (at least non aquatic ones) are hermaphroditic, (can act as > > both mail and female), so two snails should do the trick for you.
  • Snails 11 January 2010 1:22 UTC www.thekrib.com [Source type: Original source]

^ The term Giant African Land Snail can refer to three species of terrestrial pulmonate snail from the family Achatinidae: Achatina fulica , Archachatina marginata and Achatina achatina .
  • The World of Snails - Giant African Snails 11 January 2010 1:22 UTC www.freewebs.com [Source type: General]

.The land-snails which have no gill-plume in the mantle-chamber and breathe air, but have the sexes separated, and possess an operculum, belong to the orders Aspidobranchia and Pectinibranchia, and constitute the families Helicinidae, Proserpinidae, Hydrocenidae, Cyclophoridae, Cyclostomatidae and Aciculidae. The fresh-water snails which are not Pulmonates are the Paludinidae, Valvatidae and Ampullaridae, together with Neritina, a genus of the Neritidae. These all possess a fully developed gill-plume and are typical Pectinibranchs of the sub-order Taenioglossa, most of the members of which are marine.^ Most are carnivores and all are marine.
  • Ilyanassa 11 January 2010 1:22 UTC webs.lander.edu [Source type: FILTERED WITH BAYES]

^ My species, Helix aspersa, also known as the Brown Garden Snail and European Brown Snail, is one of the most common of the 40,000 land-based snails and slugs.
  • Snail Talk 11 January 2010 1:22 UTC www.squidoo.com [Source type: FILTERED WITH BAYES]

^ I was able to rescue 1 of about 5 that I saw, and put him/her in a separate bowl with water, rocks if he/she wants to get out of the water, ground egg shell, and a fresh supply of peas and broccoli.
  • FAQs on Snails in Freshwater Aquariums 2 11 January 2010 1:22 UTC www.wetwebmedia.com [Source type: Original source]

The family Helicidae has a world-wide distribution. .In Helix the spire forms a more or less obtuse-angled cone; there are above 1200 species, of which 24 are British.^ There are more species than are pictured as well.
  • Tracked Nerite Snail .:. Neritina natalensis sp. "Tracked" .:. Freshwater Aquarium Snail Information Page 11 January 2010 1:22 UTC www.planetinverts.com [Source type: General]
  • Malaysian Trumpet Snail .:. Melanoides tuberculata .:. Freshwater Aquarium Snail Species Information Page 11 January 2010 1:22 UTC www.planetinverts.com [Source type: General]

^ "Growth, reproduction and activity rhythms in two species of edible snails, Helix aspersa and Helix lucorum, in non-24-hour light cycles."
  • Raising Snails, SRB 96-05 11 January 2010 1:22 UTC www.nal.usda.gov [Source type: Academic]

Helix nemoralis, L., of which H. hortensis is a variety, is one of the commonest forms. .Helix pomatia, L., is the largest species, and is known as the "edible snail"; it is commonly eaten in France and Italy, together with other species.^ This snail was once known as the "Spanish Edible Snail."
  • Land Snails 11 January 2010 1:22 UTC molluskman.com [Source type: FILTERED WITH BAYES]

^ This species is carnivorous and eats other snails.
  • Land Snails 11 January 2010 1:22 UTC molluskman.com [Source type: FILTERED WITH BAYES]

^ This is the largest land snail species on Earth.
  • The World of Snails - Giant African Snails 11 January 2010 1:22 UTC www.freewebs.com [Source type: General]

.It was formerly believed to have been introduced into Britain by the Romans, but there is no doubt that it is a native.^ The Romans may have introduced it into Britain.
  • Raising Snails, SRB 96-05 11 January 2010 1:22 UTC www.nal.usda.gov [Source type: Academic]

In Succinea the cone of the spire is acute-angled; three species are British. In Vitrina the spire is very flat and the surface glassy. .In Bulimus the spire is elongated with a pointed apex.^ The shells of Achatina snails are usually quite elongate, the apex is pointed, and they usually lay about 100 3-6mm eggs in each batch, which can be white or yellow in colour.
  • The World of Snails - Giant African Snails 11 January 2010 1:22 UTC www.freewebs.com [Source type: General]

^ Shell elongate with pointed conical spire .----------------------------------------------------------------------------------------------- 70.
  • The Freshwater Snails of Florida A Manual for Identification 11 January 2010 1:22 UTC www.flmnh.ufl.edu [Source type: FILTERED WITH BAYES]

Pupa is named from its resemblance to a chrysalis, the apex being rounded. The shell of Clausilia is sinistral and its aperture is provided with a hinged plate. .The commoner European slugs of small size all belong to the genus Limax, in which the opening of the mantle-chamber is posterior.^ My species, Helix aspersa, also known as the Brown Garden Snail and European Brown Snail, is one of the most common of the 40,000 land-based snails and slugs.
  • Snail Talk 11 January 2010 1:22 UTC www.squidoo.com [Source type: FILTERED WITH BAYES]

^ They can be distinguished from all other Trochoideans by their small size and the presence of a small pit or hole in the center of the calcareous operculum that plugs the aperture.
  • The Grazing Snails, Part I - Turbo, Trochus, Astraea, and Kin by Ronald L. Shimek, Ph.D. - Reefkeeping.com 11 January 2010 1:22 UTC reefkeeping.com [Source type: FILTERED WITH BAYES]

^ Dorsally the body wall is the mantle and a fold of this body wall forms and encloses that all important molluscan chamber, the mantle cavity.
  • Ilyanassa 11 January 2010 1:22 UTC webs.lander.edu [Source type: FILTERED WITH BAYES]

L. flavus is the cellar slug. L. agrestis, L. arborum, L. maximus occur in gardens and fields. The larger black slugs are species of Anion, of which two are British, A. ater and A. hortensis. Testacella haliotidea is common in Great Britain and throughout Europe.
.The species of Helix are all herbivorous, like the Pulmonata generally; snails and slugs are well-known enemies to the gardener.^ My species, Helix aspersa, also known as the Brown Garden Snail and European Brown Snail, is one of the most common of the 40,000 land-based snails and slugs.
  • Snail Talk 11 January 2010 1:22 UTC www.squidoo.com [Source type: FILTERED WITH BAYES]

^ I will try to ignore most of this terminology, but some of it is inescapable in a discussion of closely-related snails, because in general, the most visible differences between species are related to differences in shell features.
  • The Grazing Snails, Part I - Turbo, Trochus, Astraea, and Kin by Ronald L. Shimek, Ph.D. - Reefkeeping.com 11 January 2010 1:22 UTC reefkeeping.com [Source type: FILTERED WITH BAYES]

^ I have seen snails sold as mystery snails that are all different colors and obviously multiple species.

The animals being hermaphrodite copulate reciprocally. .The eggs of Helix are laid separately in the earth, each contained in a calcified shell; those of Limax are also separate, but the shell is gelatinous.^ The eggs are laid in gelatinous clusters in the water.
  • The Freshwater Snails of Florida A Manual for Identification 11 January 2010 1:22 UTC www.flmnh.ufl.edu [Source type: FILTERED WITH BAYES]

^ I was able to rescue 1 of about 5 that I saw, and put him/her in a separate bowl with water, rocks if he/she wants to get out of the water, ground egg shell, and a fresh supply of peas and broccoli.
  • FAQs on Snails in Freshwater Aquariums 2 11 January 2010 1:22 UTC www.wetwebmedia.com [Source type: Original source]

.Helix hibernates in a torpid condition for about four months, and during this period the aperture of the shell is closed by a calcareous membrane secreted by the foot.^ H. pomatia eggs measure about 3mm in diameter and have a calcareous shell and a high yolk content.
  • Raising Snails, SRB 96-05 11 January 2010 1:22 UTC www.nal.usda.gov [Source type: Academic]

^ The shell has a single opening, or aperture , from which the animal extends its head and foot.
  • Ilyanassa 11 January 2010 1:22 UTC webs.lander.edu [Source type: FILTERED WITH BAYES]

^ I went there for the first time four months ago during its opening week.

The Limnaeidae occur in all parts of the world. Limnaeus contains the largest species. L. pereger, Muller, is ubiquitous in Great Britain and common all over Europe. .All the species are usually infested with Cercariae and Rediae, the larval forms of Trematode parasites of vertebrates.^ The family contains numerous genera and species, some of which are important medically as intermediate hosts for trematode parasites.
  • The Freshwater Snails of Florida A Manual for Identification 11 January 2010 1:22 UTC www.flmnh.ufl.edu [Source type: FILTERED WITH BAYES]

^ These are larval stages of a trematode flatworm that parasitizes these snails.
  • Ilyanassa 11 January 2010 1:22 UTC webs.lander.edu [Source type: FILTERED WITH BAYES]

^ Almost all the tropical species do well in reef tanks, while virtually none of the temperate forms persist.
  • The Grazing Snails, Part I - Turbo, Trochus, Astraea, and Kin by Ronald L. Shimek, Ph.D. - Reefkeeping.com 11 January 2010 1:22 UTC reefkeeping.com [Source type: FILTERED WITH BAYES]

L. truncatulus harbours the Cercaria of Fasciola hepatica, the liver-fluke, which causes rot in sheep. .Ancylus, which occurs in rivers, has a minute limpet-like shell.^ Shell cap-shaped or limpet-like with a wide, open aperture forming base of shell (Figs.
  • The Freshwater Snails of Florida A Manual for Identification 11 January 2010 1:22 UTC www.flmnh.ufl.edu [Source type: FILTERED WITH BAYES]

Planorbis has the spire of the shell in one plane. .Physa is smaller than Limnaeus and has the upper part of the spire much shorter.^ Spire depressed, much less than height of aperture, occasionally planular (Figs.
  • The Freshwater Snails of Florida A Manual for Identification 11 January 2010 1:22 UTC www.flmnh.ufl.edu [Source type: FILTERED WITH BAYES]

In the Auriculidae the aperture is denticulated. Auricula is confined to the East Indies and Peru. Carychium minimum is British.
Of the Cyclostomidae only one species, Cyclostoma elegans, Muller, is British; it hides under stones and roots. The Helicinidae are exotic, ranging from the West Indies to the Philippines. Of the Aciculidae, which are all minute, Acicula lineata is British.
The Ampullaridae are confined to the tropics. .Ampullaria has very long tentacles and a long siphon formed by the mantle.^ The siphon is a long rolled extension of the anterior, left, dorsal border of the mantle skirt.
  • Ilyanassa 11 January 2010 1:22 UTC webs.lander.edu [Source type: FILTERED WITH BAYES]

.Valvata is common in fresh waters throughout Britain; the gill when the animal is expanded is protruded beyond the mantle-chamber.^ The larvae of fresh water clams cling to the gills or fins of fish as parasites.

^ Enters fresh water in Florida throughout the St. Johns River.
  • The Freshwater Snails of Florida A Manual for Identification 11 January 2010 1:22 UTC www.flmnh.ufl.edu [Source type: FILTERED WITH BAYES]

^ The siphon is the inhalant canal that brings water into the mantle cavity with its sensory receptors, and gill.
  • Ilyanassa 11 January 2010 1:22 UTC webs.lander.edu [Source type: FILTERED WITH BAYES]

The Paludinidae are common in the N. hemisphere. Paludina and Bithynia are both British genera. .In Paludina the whorls of the spiral are very prominent; the genus is viviparous.^ Spiral angulation on whorls sharp and prominent in juveniles, usually becoming convex-rounded or smooth on last whorl in adults.
  • The Freshwater Snails of Florida A Manual for Identification 11 January 2010 1:22 UTC www.flmnh.ufl.edu [Source type: FILTERED WITH BAYES]

^ Base of last whorl with prominent spiral ridges.
  • The Freshwater Snails of Florida A Manual for Identification 11 January 2010 1:22 UTC www.flmnh.ufl.edu [Source type: FILTERED WITH BAYES]

^ Shell with prominent ribs and spiral chords on all whorls .--------------------------------------------------------------------------- 20.
  • The Freshwater Snails of Florida A Manual for Identification 11 January 2010 1:22 UTC www.flmnh.ufl.edu [Source type: FILTERED WITH BAYES]

Bithynia is smaller and the shell smoother.
.Neritina has a very small spire, the terminal portion of the shell containing nearly the whole animal.^ Description : Very small, translucent shell.
  • Land Snails 11 January 2010 1:22 UTC molluskman.com [Source type: FILTERED WITH BAYES]

^ Description: The shell is small and rounded, with a very smooth, slick-feeling surface.
  • Land Snails 11 January 2010 1:22 UTC molluskman.com [Source type: FILTERED WITH BAYES]

.For the morphology and classification of snails, see Gastropoda.^ Introduction to the Physidae (Gastropoda, Hydophila): biogeograhy, classification, morphology.
  • The Freshwater Snails of Florida A Manual for Identification 11 January 2010 1:22 UTC www.flmnh.ufl.edu [Source type: FILTERED WITH BAYES]

A history of the British forms is given in Gwyn Jeffreys's British Conchology (1862), and by Forbes and Hanley in British Mollusca. For speciegraphical details, see Woodward's Manual of the Mollusca (1875), and Bronn's Tierreich (Weichtiere). For Fasciola hepatica, see Thomas, Quart. Journ. Mic. Sci. (1882).


Bible wiki

Up to date as of January 23, 2010

From BibleWiki

  1. Heb. homit, among the unclean creeping things (Lev 11:30). .This was probably the sand-lizard, of which there are many species in the wilderness of Judea and the Sinai peninsula.
  2. Heb.^ This species is more adaptable to different climates and conditions than many snails, and is found in woods, fields, sand dunes, and gardens.
    • Raising Snails, SRB 96-05 11 January 2010 1:22 UTC www.nal.usda.gov [Source type: Academic]

    ^ Considerable variation in obesity and sculpture rugosity exists between different populations, and there is disagreement as to how many species occur in Florida.
    • The Freshwater Snails of Florida A Manual for Identification 11 January 2010 1:22 UTC www.flmnh.ufl.edu [Source type: FILTERED WITH BAYES]

    ^ There is much disagreement as to how many species actually exist.
    • The Freshwater Snails of Florida A Manual for Identification 11 January 2010 1:22 UTC www.flmnh.ufl.edu [Source type: FILTERED WITH BAYES]

    shablul (Ps 588), the snail or slug proper. Tristram explains the allusions of this passage by a reference to the heat and drought by which the moisture of the snail is evaporated. "We find," he says, "in all parts of the Holy Land myriads of snail-shells in fissures still adhering by the calcareous exudation round their orifice to the surface of the rock, but the animal of which is utterly shrivelled and wasted, 'melted away.'"
This entry includes text from Easton's Bible Dictionary, 1897.
what mentions this? (please help by turning references to this page into wiki links)
This article needs to be merged with SNAIL (Jewish Encyclopedia).

Simple English

A more detailed description is at gastropoda
Snails
File:Grapevinesnail
A grapewine snail (Helix pomatia)
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Genus: Helix
Species: Helix aspersa

A snail is an animal. It is a mollusk, which means it does not have bones. Most snails are aquatic, they live in the water. Most of them have a shell. Most snails are herbivores, though some are omnivores. Fewer even are carnivores.

Snails without a shell are usually called slugs.

Snails move very slowly, and are sometimes used to represent "slow".

In some countries, like in France, people eat snails. After the snails are cooked, they make a dish called Escargot, a delicacy in France. They usually boil them in salt water, and add a garlic sauce.

Contents

Foot

Snails don’t have bones or legs; instead they have a muscle called a foot.

Shell

Snails and slugs are what you call invertebrates. Invertebrates are animals with no back bones. The shell on the snail helps protect it. Not all shells are the same. They can be different shapes, sizes, and colors. Snails do not breath through their mouths; instead they have a breathing hole under their shells.

Head

The head is attached to the foot. The mouth is like a cheese grater. It is called radula. It is used for cutting food. In the mouth there are also little teeth. On the head there are 15 cm long feelers. On the end of the feelers are snail’s eyes. Snails do not see very well.

Habitat of snails

Snails are found all over the world. They are even found in cold places like the Arctic. They are also found in warm places like beaches and deserts. Not all snails live on land. Some snails live in the water. They live in the sea, fish tanks, rivers and oceans. They don’t swim in the water. They stick on rocks. Snails also live on land. They live in caves and dark places. Snails can be found in dark places such as in a garden under plants.

Food

Snails eat a lot of vegetables such as lettuce, cucumber, and carrots. Snails also eat fruit like apples. Snails use their radula to cut food. The radula is the mouth.

Many animals eat snails. Firefly’s, snakes, beetles, fish, insects, turtles, and people all eat snails. To defend themselves, snails hide in their shells or pull in their feelers.

Cool things about snails

The biggest snail is the giant African snail. It is 35 cm long. This snail turned into a giant pest. The rarest snails are the giant African snail and partala snail.

The fastest snail is the Helis aspersa snail. It can reach speeds up to 0.03mph.

Slugs

Slugs are invertebrates; this means they have no back bones. Slugs do not have shells. Slugs look a lot like snails but they have no shells. Slugs are also mollusks. Slugs have soft and squishy bodies. Slugs have a head. They have eyes on the tip of their tentacles; slugs have a file- like tongue. A slug has a hole half way along the body for breathing. Slugs only have one foot, they use their foot for moving and the foot is a muscle.

Habitat

Many slugs live in North America. Slugs like living in damp places. Slugs come out in early mornings and after the rain. You can find slugs in gardens and parks. Slugs come out in spring and summer.

References

O’Neil Sarah. (1999). Snails. Scholastic Canada Ltd. ISBN 0-7791-1181-8.

Henwood Chris. ( 2005). Keeping Minibeasts Snails and slugs. Sea to Sea publications. ISBN 1-932889-21-3.

Stidworthy John. ( 2002) Cool Facts Creepy Crawlies. Parragon 2000. ISBN 0-75255-903-6.

Error creating thumbnail: sh: convert: command not found



Citable sentences

Up to date as of December 13, 2010

Here are sentences from other pages on Snail, which are similar to those in the above article.








Got something to say? Make a comment.
Your name
Your email address
Message