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Zonitoides
''Zonitoides'' is a genus of air-breathing land snails, terrestrial gastropod mollusks in the family Gastrodontidae. Distribution The distribution of ''Zonitoides'' includes North America, eastern and northern Asia, and Europe. AnimalBase, last modified 22 January 2009, accessed 3 September 2010. Species Species within the genus ''Zonitoides'' include: * '''' (Say, 1817) * '' Zonitoides excavatus'' (Alder, 1830) *[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zonitoides Nitidus
''Zonitoides nitidus'' (sometimes ''Zonitoides nitida'') is a species of small, air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Gastrodontidae. ''Zonitoides nitidus'' is the type species of the genus ''Zonitoides''. Distribution The distribution of ''Zonitoides nitidus'' includes the Holarctic zone. It is found almost all over Europe except the southernmost regions: * Czech Republic - least concern (LC) * Netherlands * Russia - Sverdlovsk oblast * UkraineBalashov I. & Gural-Sverlova N. 2012. An annotated checklist of the terrestrial molluscs of Ukraine. ''Journal of Conchology''. 41 (1): 91-109. * Slovakia * Great Britain - north British highland zones and not in north Scotland. In some regions in Britain the species has declined due to drainage. * Ireland * Hebrides * Orkney * Shetland * rare in northern Greece * Canada The non-indigenous distribution of this species includes: * introduced to Menorca Description The shell is reddish br ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zonitoides Arboreus
''Zonitoides arboreus'', commonly known as the quick gloss snail, is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Gastrodontidae. Distribution The native distribution of ''Z. arboreus'' is North America."Species summary for ''Zonitoides arboreus''" AnimalBase, last modified 26 January 2010, accessed 4 September 2010. It is widely distributed in all US states except . It is widespread and common in central |
Zonitoides Hoffmanni
''Zonitoides'' is a genus of air-breathing land snails, terrestrial gastropod mollusks in the family Gastrodontidae. Distribution The distribution of ''Zonitoides'' includes North America, eastern and northern Asia, and Europe. AnimalBase, last modified 22 January 2009, accessed 3 September 2010. Species Species within the genus ''Zonitoides'' include: * '''' (Say, 1817) * '' Zonitoides excavatus'' (Alder, 1830) *[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zonitoides Excavatus
''Zonitoides excavatus'' is a European species of small, air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Gastrodontidae. Distribution Distribution of ''Zonitoides excavatus'' include: * British Isles: Great Britain and Ireland. In Britain it restricted to a few regions, but frequent in the zones where it occurs (Cornwall, south of London, west Wales, Eastern, southwest and northwest Ireland, specifically Portman, Clonee, Clonakilty and Clare island, central England, southwest Scotland). * On the redlist in Ireland of species under threat, Endangered in Germany (2009). * Netherlands * Denmark * Belgium * northern France. Description ''Zonitoides excavatus'' is smaller than '' Zonitoides nitidus''. The umbilicus is extremely wide and perspectivically open (as is the case in ''Discus rotundatus''). The shell is weakly brown, slightly transparent, with radial streaks. The animal is dark. The width of the shell is 5.3–6 mm, and the heigh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zonitoides Jaccetanicus
''Zonitoides jaccetanicus'' is a species of small, air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Gastrodontidae. Distribution ''Zonitoides jaccetanicus'' is endemic to Montserrat mountain near Barcelona, Catalonia, Spain. It is a rare species, possibly endemic to Catalonia. The species has declined due to construction activities in the growing city of Barcelona. Description The shell is evenly horny-brownish, fragile and transparent, finely striated on the upper side, nearly smooth on the lower side. The shell has 5 weakly convex whorls with pronounced suture. The upper side is flattened. Lower side is convex. The last whorl is not much wider than penultimate whorl. The aperture is oblique. The apertural margin is straight. Umbilicus is relatively narrow. The width of the shell is 4–5 mm. The height of the shell is 2.6-3.4 mm. The shell is very much like that of ''Zonitoides arboreus ''Zonitoides arboreus'', ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastrodontidae
Gastrodontidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Gastrodontoidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). MolluscaBase eds. (2020). MolluscaBase. Gastrodontidae Tryon, 1866. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=821641 on 2020-05-08 This family has no subfamilies (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). Distribution The distribution of the Gastrodontidae includes the Nearctic, western-Palearctic, eastern-Palearctic, Neotropical and Hawaii. Anatomy Some snail species in this family use love darts made of cartilage. 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'. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Love Darts
A love dart (also known as a gypsobelum, shooting darts, or just as darts) is a sharp, calcium carbonate, calcareous or chitinous Dart (missile), dart which some hermaphroditic land snails and slugs create. Love darts are both formed and stored internally in a dart sac. These darts are made in sexually mature animals only, and are used as part of the sequence of events during courtship, before actual mating takes place. Darts are quite large compared to the size of the animal: in the case of the semi-slug genus ''Parmarion'', the length of a dart can be up to one fifth that of the semi-slug's foot. The process of using love darts in snails is a form of sexual selection. Prior to copulation (zoology), copulation, each of the two snails (or slugs) attempts to "shoot" one (or more) darts into the other snail (or slug). There is no organ to receive the dart; this action is more analogous to stabbing, or to being shot with an arrow or flechette. The dart does not fly through the ai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastropod
The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. There are many thousands of species of sea snails and slugs, as well as freshwater snails, freshwater limpets, and land snails and slugs. The class Gastropoda contains a vast total of named species, second only to the insects in overall number. The fossil history of this class goes back to the Late Cambrian. , 721 families of gastropods are known, of which 245 are extinct and appear only in the fossil record, while 476 are currently extant with or without a fossil record. Gastropoda (previously known as univalves and sometimes spelled "Gasteropoda") are a major part of the phylum Mollusca, and are the most highly diversified class in the phylum, with 65,000 to 80,000 living snail and slug species. The anatomy, behavior, feeding, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. '' Panthera leo'' (lion) and '' Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. phylogenetic analysis should c ... [...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 microha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
