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Achatinoidea
The Achatinoidea are a superfamily of air-breathing land snails and slugs, terrestrial gastropod mollusks in the informal group Sigmurethra. 2005 taxonomy According to taxonomy of the Gastropoda by Bouchet & Rocroi, 2005 there are four families within the superfamily Achatinoidea, that is based on the study by Nordsieck, published in 1986. abstract. *Family Achatinidae Swainson, 1840 *Family Ferussaciidae Bourguignat, 1883 *Family Micractaeonidae Schileyko, 1999 *Family Subulinidae P. Fischer & Crosse, 1877 2017 taxonomy Fontanilla et al. recognized Subulinidae as not monophyletic in 2017 and they classified Subulininae within Achatinidae. * Family Achatinidae Achatinidae (New Latin, from Greek "''agate''") is a family of medium to large sized tropical land snails, terrestrial pulmonate gastropod mollusks from Africa. Well known species include ''Achatina achatina'' the Giant African Snail, and ''Liss ... Swainson, 1840 * Family Aillyidae H. B. Baker, 1955Rosenberg, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sigmurethra
Sigmurethra is a taxonomic category of air-breathing land snails and slugs, terrestrial pulmonate gastropod molluscs. This is an informal group which includes most land snails and slugs. The two strong synapomorphies of Sigmurethra are a long pedal gland placed beneath a membrane and retractile tentacles. Several families in this group contain species of snails and slugs that create love darts. Sigmurethra are known from the Cretaceous to the Recent periods. Taxonomy 2005 Taxonomy In the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005, Sigmurethra is an "Informal Group", a subsection of the Stylommatophora.Bouchet P. & Rocroi J.-P. (Ed.); Frýda J., Hausdorf B., Ponder W., Valdés Á. & Warén A. 2005. ''Classification and nomenclator of gastropod families''. Malacologia: International Journal of Malacology, 47(1-2). ConchBooks: Hackenheim, Germany. . . 397 pp. http://www.vliz.be/Vmdcdata/imis2/ref.php?refid=78278 It consists of the following families: *Superfamily Claus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Micractaeonidae
''Micractaeon koptawelilensis'' is a species of land snail, terrestrial gastropod mollusks in the superfamily Achatinoidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). ''Micractaeon koptawelilensis'' is the only species in the genus ''Micractaeon''. ''Micractaeon'' is the type genus of the family Micractaeonidae, and ''Micractaeon'' is the only genus in the family Micractaeonidae. This family has no subfamilies. Distribution The distribution of ''Micractaeon koptawelilensis'' includes tropical Africa: Ghana, Cameroon, eastern and southeastern Zaïre, Malawi, eastern Zambia, Uganda, Kenya and Tanzania. The type locality is Mount Elgon, Kenya. Description The width of the shell is 0.7-1.3 mm. The height of the shell is 1.1-2.2 mm. Ecology ''Micractaeon koptawelilensis'' inhabits forests. These snails are found in leaf litter Plant litter (also leaf litter, tree litter, soil litter, litterfall or duff) is dead plant material (such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subulinidae
Subulininae is a subfamily of small tropical air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Achatinidae. Distribution Worldwide."Family summary for Subulinidae" , last modified 21-02-2006, accessed 15 March 2011. Anatomy In this subfamily, the number of haploid s lies between 26 and 35 (according to the values in this table).Barker G. M.: Gastropods on Land: ''Phylogeny, Diversi ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ferussaciidae
Ferussaciidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Achatinoidea. MolluscaBase eds. (2020). MolluscaBase. Ferussaciidae Bourguignat, 1883. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=413333 on 2020-05-02 This family has no subfamilies. The family name Ferussaciidae is from 1883 and therefore it is more recent than the family name Cecilioididae Mörch, 1864, however the latter has been declared as a nomen oblitum because it has not been used for over 100 years. Ferussaciidae has been declared a nomen protectum. Distribution The distribution of Ferussaciidae includes Africa to Europe and the Near East, tropical Americas, Hawaii and tropical Asia."Family summary fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slug
Slug, or land slug, is a common name for any apparently shell-less terrestrial gastropod mollusc. The word ''slug'' is also often used as part of the common name of any gastropod mollusc that has no shell, a very reduced shell, or only a small internal shell, particularly sea slugs and semislugs (this is in contrast to the common name ''snail'', which applies to gastropods that have a coiled shell large enough that they can fully retract their soft parts into it). Various taxonomic families of land slugs form part of several quite different evolutionary lineages, which also include snails. Thus, the various families of slugs are not closely related, despite a superficial similarity in the overall body form. The shell-less condition has arisen many times independently as an example of convergent evolution, and thus the category "slug" is polyphyletic. Taxonomy Of the six orders of Pulmonata, two – the Onchidiacea and Soleolifera – solely comprise slugs. A third family, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxonomy Of The Gastropoda (Bouchet & Rocroi, 2005)
The taxonomy of the Gastropoda as it was revised in 2005 by Philippe Bouchet and Jean-Pierre Rocroi is a system for the scientific classification of gastropod mollusks. (Gastropods are a taxonomic class of animals which consists of snails and slugs of every kind, from the land, from freshwater, and from saltwater.) The paper setting out this taxonomy was published in the journal ''Malacologia''. The system encompasses both living and extinct groups, as well as some fossils whose classification as gastropods is uncertain. The Bouchet & Rocroi system was the first complete gastropod taxonomy that primarily employed the concept of clades, and was derived from research on molecular phylogenetics; in this context a clade is a "natural grouping" of organisms based upon a statistical cluster analysis. In contrast, most of the previous overall taxonomic schemes for gastropods relied on morphological features to classify these animals, and used taxon ranks such as order, superorder ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Giant East African Snail
''Lissachatina fulica'' is a species of large land snail that belongs in the subfamily Achatininae of the family Achatinidae. It is also known as the Giant African land snail.''Achatina fulica''. Global Invasive Species Database. ISSG. IUCN. It shares the common name "giant African snail" with other species of snails such as '''' and ''''. This snail species has been considered a significant cause of pest issues around the world. Internationally, it is the most frequently occurring invasive species of snail. Outside of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William John Swainson
William John Swainson FLS, FRS (8 October 1789 – 6 December 1855), was an English ornithologist, malacologist, conchologist, entomologist and artist. Life Swainson was born in Dover Place, St Mary Newington, London, the eldest son of John Timothy Swainson the Second (1756–1824), an original fellow of the Linnean Society. He was cousin of the amateur botanist Isaac Swainson.Etymologisches Worterbuch der botanischen Pflanzennamen by H. Genaust. Review by Paul A. Fryxell ''Taxon'', Vol. 38(2), 245–246 (1989). His father's family originated in Lancashire, and both grandfather and father held high posts in Her Majesty's Customs, the father becoming Collector at Liverpool. William, whose formal education was curtailed because of an impediment in his speech, joined the Liverpool Customs as a junior clerk at the age of 14."William Swainson F.R.S, F.L.S., Naturalist and Artist: Diaries 1808–1838: Sicily, Malta, Greece, Italy and Brazil." G .M. Swainson, Palmerston, NZ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Achatinidae
Achatinidae (New Latin, from Greek "''agate''") is a family of medium to large sized tropical land snails, terrestrial pulmonate gastropod mollusks from Africa. Well known species include ''Achatina achatina'' the Giant African Snail, and ''Lissachatina fulica'' the Giant East African Snail. As of 2022, there were 105 genera recognized within the family Achatinidae. Description In this family, the number of haploid chromosomes lies between 26 and 30 (according to the values in this table).Barker G. M.: Gastropods on Land: ''Phylogeny, Diversity and Adaptive Morphology''. in Barker G. M. (ed.): The biology of terrestrial molluscs'. CABI Publishing, Oxon, UK, 2001, . 1-146, cited pages: 139 and 142. Distribution The native distribution of Achatinidae is Africa south of the Sahara."Family sum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aillyidae
Aillyidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the informal group Sigmurethra. Aillyidae is the only family in the superfamily Aillyoidea. This family and the genus is named in honor of Swedish malacologist Adolf d’Ailly (1855-1927). Taxonomy The family Aillyidae is classified within the informal group Sigmurethra, itself belonging to the clade Stylommatophora within the clade Eupulmonata (according to taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). This family has no subfamilies. Prestonellidae has been tentatively placed as a synonym of Aillyidae in the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005. Herbert & Mitchell (2009) have moved Prestonellidae to the superfamily Orthalicoidea.Herbert D. G. & Mitchell A. (2009). "Phylogenetic relationships of the enigmatic land snail genus ''Prestonella'': the missing African element in the Gondwanan superfamily Orthalicoidea (Mollusca: Stylommatophora)". ''Zoological ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxonomic Rank
In biological classification, taxonomic rank is the relative level of a group of organisms (a taxon) in an ancestral or hereditary hierarchy. A common system consists of species, genus, family (biology), family, order (biology), order, class (biology), class, phylum (biology), phylum, kingdom (biology), kingdom, domain (biology), domain. While older approaches to taxonomic classification were phenomenological, forming groups on the basis of similarities in appearance, organic structure and behaviour, methods based on genetic analysis have opened the road to cladistics. A given rank subsumes under it less general categories, that is, more specific descriptions of life forms. Above it, each rank is classified within more general categories of organisms and groups of organisms related to each other through inheritance of phenotypic trait, traits or features from common ancestors. The rank of any ''species'' and the description of its ''genus'' is ''basic''; which means that to iden ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Land Snail
A land snail is any of the numerous species of snail that live on land, as opposed to the sea snails and freshwater snails. ''Land snail'' is the common name for terrestrial gastropod mollusks that have shells (those without shells are known as slugs). However, it is not always easy to say which species are terrestrial, because some are more or less amphibious between land and fresh water, and others are relatively amphibious between land and salt water. Land snails are a polyphyletic group comprising at least ten independent evolutionary transitions to terrestrial life (the last common ancestor of all gastropods was marine). The majority of land snails are pulmonates that have a lung and breathe air. Most of the non-pulmonate land snails belong to lineages in the Caenogastropoda, and tend to have a gill and an operculum. The largest clade of land snails is the Cyclophoroidea, with more than 7,000 species. Many of these operculate land snails live in habitats or microhabitats ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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