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Neohelix
''Neohelix'' is a genus (or a subgenus under '' Triodopsis'') of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Polygyridae. The shells of ''Neohelix'' are not distinguishable from those of the genus ''Mesodon'', but the reproductive anatomy of the two groups of snails is different.Pilsbry H. A. (1940). "Land Mollusca of North America (North of Mexico)". ''Acad. Nat. Sci. Philadelphia'', Monograph 3, vol. 1(2): 834. Species Species within the genus ''Neohelix'' include: * '' Neohelix albolabris'' * ''Neohelix dentifera ''Neohelix dentifera'' is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Polygyridae Polygyridae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superf ...'' * '' Neohelix divesta'' * '' Neohelix multilineata'' * '' Neohelix major'' * '' Neohelix solemi'' * '' Neohelix alleni'' References Polygyridae Taxa named by Hermann v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neohelix Alleni
''Neohelix'' is a genus (or a subgenus under ''Triodopsis'') of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Polygyridae. The shells of ''Neohelix'' are not distinguishable from those of the genus ''Mesodon'', but the reproductive anatomy of the two groups of snails is different.Pilsbry H. A. (1940). "Land Mollusca of North America (North of Mexico)". ''Acad. Nat. Sci. Philadelphia'', Monograph 3, vol. 1(2): 834. Species Species within the genus ''Neohelix'' include: * '' Neohelix albolabris'' * ''Neohelix dentifera ''Neohelix dentifera'' is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Polygyridae Polygyridae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superf ...'' * '' Neohelix divesta'' * '' Neohelix multilineata'' * '' Neohelix major'' * '' Neohelix solemi'' * '' Neohelix alleni'' References Polygyridae Taxa named by Hermann v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neohelix Solemi
''Neohelix'' is a genus (or a subgenus under ''Triodopsis'') of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Polygyridae. The shells of ''Neohelix'' are not distinguishable from those of the genus ''Mesodon'', but the reproductive anatomy of the two groups of snails is different.Pilsbry H. A. (1940). "Land Mollusca of North America (North of Mexico)". ''Acad. Nat. Sci. Philadelphia'', Monograph 3, vol. 1(2): 834. Species Species within the genus ''Neohelix'' include: * '' Neohelix albolabris'' * ''Neohelix dentifera'' * '' Neohelix divesta'' * '' Neohelix multilineata'' * '' Neohelix major'' * '' Neohelix solemi'' * ''Neohelix alleni ''Neohelix'' is a genus (or a subgenus under ''Triodopsis'') of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Polygyridae. The shells of ''Neohelix'' are not distinguishable from those of the genus ''Mesodon ...'' References Polygyridae Taxa named by Hermann vo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neohelix Major
''Neohelix'' is a genus (or a subgenus under ''Triodopsis'') of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Polygyridae. The shells of ''Neohelix'' are not distinguishable from those of the genus ''Mesodon'', but the reproductive anatomy of the two groups of snails is different.Pilsbry H. A. (1940). "Land Mollusca of North America (North of Mexico)". ''Acad. Nat. Sci. Philadelphia'', Monograph 3, vol. 1(2): 834. Species Species within the genus ''Neohelix'' include: * '' Neohelix albolabris'' * ''Neohelix dentifera'' * '' Neohelix divesta'' * '' Neohelix multilineata'' * '' Neohelix major'' * ''Neohelix solemi'' * ''Neohelix alleni ''Neohelix'' is a genus (or a subgenus under ''Triodopsis'') of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Polygyridae. The shells of ''Neohelix'' are not distinguishable from those of the genus ''Mesodon ...'' References Polygyridae Taxa named by Hermann von ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neohelix Albolabris
''Neohelix albolabris'' is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Polygyridae. Alternate names for Neohelix albolabris are Helix albolabris and Triodopsis albolabris. It is the first land snail to be named by an American-born naturalist, Thomas Say in 1817. N. albolabris is one of the largest native land snails in North America. Its range extends from Maine to Georgia and west to the Mississippi River. In the northern part of this range some specimens may grow to have shells 30mm in diameter. In the southern part of the range, some specimens grow to 40 mm diameter. Early New England naturalist and illustrator Edward S. Morse reported that Helix albolabris (as he called it) was one of the three most common land snails in New England. He wrote extensively about it in his pioneering work "Land Snails of New England" which was serialized in 1867 & 1868 in the first volume of The American Naturalist. In 2010 Elis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neohelix Dentifera
''Neohelix dentifera'' is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Polygyridae Polygyridae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Helicoidea. MolluscaBase eds. (2021). MolluscaBase. Polygyridae Pilsbry, 1895. Accessed through: World Register of Marine Species a .... References Polygyridae Gastropods described in 1837 {{Polygyridae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neohelix Multilineata
''Neohelix multilineata'' is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Polygyridae Polygyridae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Helicoidea. MolluscaBase eds. (2021). MolluscaBase. Polygyridae Pilsbry, 1895. Accessed through: World Register of Marine Species a .... References Polygyridae {{Polygyridae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neohelix Divesta
''Neohelix divesta'' is a species of air-breathing land snail, a terrestrial animal, terrestrial pulmonate gastropod mollusc in the family Polygyridae. References Polygyridae {{Polygyridae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polygyridae
Polygyridae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Helicoidea. MolluscaBase eds. (2021). MolluscaBase. Polygyridae Pilsbry, 1895. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=993919 on 2021-02-11 The Polygyridae make up a significant proportion of the land snail fauna of eastern North America, and are also found in western North America, northern Central America, and are present on some Caribbean islands. The definitive reference to the group is Henry Pilsbry's 1940 monograph. Pilsbry, Henry A. 1940. Land Mollusca of North America (North of Mexico). Acad. Nat. Sci. Philadelphia, Monograph 3, vol. 1(2): 575-994. Anatomy This snail family is distinguished from other gastropods on the basis of several anatomical features: They have no dart apparatus (see love dart), the muscles which allow the eyes and pharynx to be retracted are united into a single ban ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euthyneura
Euthyneura is a taxonomic infraclass of snails and slugs, which includes species exclusively from marine, aquatic and terrestrial gastropod mollusks in the clade Heterobranchia. Euthyneura are characterised by several autapomorphies, but are named for euthyneury. They are considered to be the most successful and diverse group of Gastropoda. Within this taxon, the Gastropoda have reached their peak in species richness and ecological diversity. This obvious evolutionary success can probably be attributed to several factors. Marine Opisthobranchia, e.g., have evolved several clades specialised on less used food resources such as sponges or cnidarians. A key innovation in the evolution of Pulmonata was the colonization of freshwater and terrestrial habitats.Klussmann-Kolb A., Dinapoli A., Kuhn K., Streit B. & Albrecht C. (2008). "From sea to land and beyond – New insights into the evolution of euthyneuran Gastropoda (Mollusca)". ''BMC Evolutionary Biology'' 2008, 8: 57. . Vari ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pulmonate
Pulmonata or pulmonates, is an informal group (previously an order, and before that a subclass) of snails and slugs characterized by the ability to breathe air, by virtue of having a pallial lung instead of a gill, or gills. The group includes many land and freshwater families, and several marine families. The taxon Pulmonata as traditionally defined was found to be polyphyletic in a molecular study per Jörger ''et al.'', dating from 2010. Pulmonata are known from the Carboniferous Period to the present. Pulmonates have a single atrium and kidney, and a concentrated, symmetrical, nervous system. The mantle cavity is located on the right side of the body, and lacks gills, instead being converted into a vascularised lung. Most species have a shell, but no operculum, although the group does also include several shell-less slugs. Pulmonates are hermaphroditic, and some groups possess love darts. Linnean taxonomy The taxonomy of this group according to the taxonomy of the Ga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mollusca
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is estimated between 60,000 and 100,000 additional species. The proportion of undescribed species is very high. Many taxa remain poorly studied. Molluscs are the largest marine phylum, comprising about 23% of all the named marine organisms. Numerous molluscs also live in freshwater and terrestrial habitats. They are highly diverse, not just in size and anatomical structure, but also in behaviour and habitat. The phylum is typically divided into 7 or 8 taxonomic classes, of which two are entirely extinct. Cephalopod molluscs, such as squid, cuttlefish, and octopuses, are among the most neurologically advanced of all invertebrates—and either the giant squid or the colossal squid is the largest known invertebrate species. The gastropod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastropoda
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] |
