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Maizaniidae
Maizaniidae is a family of minute land snails with an operculum, terrestrial gastropod mollusks in the superfamily Cyclophoroidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). This family has no subfamilies. Genera Genera within the family ''Maizaniidae'' include: * ''Maizania ''Maizania'' is a genus of gastropods belonging to the family Maizaniidae. The species of this genus are found in Africa. Species: *''Maizania angolensis'' *''Maizania chondrocycloides'' *''Maizania depressa'' *''Maizania elatior'' *''Maiza ...'' Bourguignat, 1889 - the type genus of the family * '' Maizaniella'' Bequaert & Clench, 1836 * '' Neomaizania'' Van Bruggen, 1985 * '' Thomeomaizania'' Bequeart and Clench, 1936 References External links {{Caenogastropoda-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maizaniella Sapoensis
''Maizaniella sapoensis'' is a species of land snail with an operculum, a terrestrial gastropod mollusk in the family Maizaniidae. Taxonomy The specific name ''sapoensis'' is named after Sapo National Park, Liberia, where it lives. The species is provisionally attributed to the subgenus '' Spirulozania'' on account of the conspicuous spiral sculpture. Type material is stored in the National Museum of Natural History, Leiden (Rijksmuseum van Natuurlijke Historie). Distribution Distribution of ''Maizaniella sapoensis'' include Liberia and it is only known from the type locality, . Description She shape of the shell is high-spired in comparison with other ''Maizaniella'' species. The color of the periostracum is pale yellow-brown. The shell has three whorls. The sculpture Sculpture is the branch of the visual arts that operates in three dimensions. Sculpture is the three-dimensional art work which is physically presented in the dimensions of height, width and depth. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyclophoroidea
Cyclophoroidea is a superfamily of land snails with an operculum, terrestrial gastropods within the informal group Architaenioglossa, that belongs to the clade Caenogastropoda.Bouchet, P.; Rosenberg, G.; Gofas, S. (2015). Cyclophoroidea Gray, 1847. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=153654 on 2015-02-16 These terrestrial gastropods have lost the ctenidium (comb-like respiratory apparatus) and osphradium, and the pallial cavity has been modified as a lung. Taxonomy According to the Taxonomy of the Gastropoda (Bouchet & Rocroi, 2005), this superfamily consists of the following families : *Family Aciculidae Gray, 1850 * Family Cochlostomatidae Kobelt, 1902 *Family Craspedopomatidae Kobelt & Möllendorff, 1898 *Family Cyclophoridae Gray, 1847 **Subfamily Cyclophorinae Gray, 1847 *** Tribe Caspicyclotini Wenz, 1938 *** Tribe Cyathopomatini Kobelt & Möllendorff, 1897 *** Tribe Cyclophorini Gray, 1847 *** ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operculum (gastropod)
The operculum (; ) is a corneous or calcareous anatomical structure like a trapdoor that exists in many (but not all) groups of sea snails and freshwater snails, and also in a few groups of land snails; the structure is found in some marine and freshwater gastropods, and in a minority of terrestrial gastropods, including the families Helicinidae, Cyclophoridae, Aciculidae, Maizaniidae, Pomatiidae, etc. The operculum is attached to the upper surface of the foot and in its most complete state, it serves as a sort of "trapdoor" to close the aperture of the shell when the soft parts of the animal are retracted. The shape of the operculum varies greatly from one family of gastropods to another. It is fairly often circular, or more or less oval in shape. In species where the operculum fits snugly, its outline corresponds exactly to the shape of the aperture of the shell and it serves to seal the entrance of the shell. Many families have opercula that are reduced in size, and which a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maizania
''Maizania'' is a genus of gastropods belonging to the family Maizaniidae. The species of this genus are found in Africa. Species: *''Maizania angolensis'' *''Maizania chondrocycloides'' *''Maizania depressa'' *''Maizania elatior'' *''Maizania furadana'' *''Maizania hildebrandti'' *''Maizania kazibae'' *''Maizania lugubrioides'' *''Maizania magilensis'' *''Maizania marsabitensis'' *''Maizania miocenica'' *''Maizania natalensis'' *''Maizania olivacea'' *''Maizania pocsi'' *''Maizania scalarioidea'' *''Maizania subdepressa'' *''Maizania volkensi'' *''Maizania wahlbergi'' *''Maizania zanzibarica'' References {{Taxonbar, from=Q49408205 Gastropods ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Architaenioglossa
Architaenioglossa is a taxonomic group of snails which have gills and often an operculum. They are primarily land and freshwater gastropod mollusks within the clade Caenogastropoda. This " informal group" has been shown to be polyphyletic in a study by Harasewych ''et al.'', published in 1998. Taxonomy *Superfamily Ampullarioidea **Family Ampullariidae ** † Family Naricopsinidae *Superfamily Cyclophoroidea **Family Cyclophoridae **Family Aciculidae **Family Craspedopomatidae **Family Diplommatinidae ** † Family Ferussinidae **Family Maizaniidae **Family Megalomastomatidae **Family Neocyclotidae **Family Pupinidae *Superfamily Viviparoidea **Family Viviparidae ** † Family Pliopholygidae Pliopholygidae is an extinct family (biology), family of operculum (gastropod), operculate freshwater snails, Aquatic animal, aquatic gastropod mollusks in the informal group Architaenioglossa. References The Taxonomicon Prehistoric gas ... (Families that are exclusively fossil are ... [...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] |
Mollusk
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 gas ... [...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, and re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Terrestrial Molluscs
Terrestrial molluscs or land molluscs (mollusks) are an ecological group that includes all molluscs that live on land in contrast to freshwater and marine molluscs. They probably first occurred in the Carboniferous, arising from freshwater ones. Characteristics This group includes land snails and land slugs. Loss of the shell has taken place many times in different groups that are not evolutionarily closely related, and land snails and slugs are most often treated together as a single group in specialized malacological literature.Barker G. M. (ed.) The biology of terrestrial molluscs'. CABI Publishing, 2001, 558 pp. .Barker G. M. (ed.) Natural enemies of terrestrial molluscs'. CABI Publishing, 2004, 644 pp. . All terrestrial molluscs belong to the class Gastropoda. However, colonization of the land took place several times during the evolutionary past, and as a result terrestrial molluscs are classified in several different, often not closely related, gastropod taxa. Terrestr ... [...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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