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Crossata Barbarajeanae
''Crossata'' is a genus of sea snails, marine (ocean), marine gastropod mollusks in the family (biology), family Bursidae, the frog shells. Species Species within the genus ''Crossata'' include: * ''Crossata barbarajeanae'' C. L. Powell & Berschauer, 2017 * ''Crossata californica'' (Hinds, 1843) * ''Crossata fuscopicta'' (Sowerby III, 1893) * ''Crossata ventricosa'' (Broderip, 1833) ;Species brought into synonymy: * ''Crossata californica'' (Hinds, 1843): synonym of ''Crossata ventricosa'' (Broderip, 1833) References * Powell & Berschauer: ''Crossata (Gastropoda: Bursidae) in the eastern Pacific: A morphologic and paleontologic perspective''; The Festivus vol. 49 (3); 2017. Bursidae {{Bursidae-stub ... [...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] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), 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 taxonomy (biology), 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Snail
Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the absence of a visible shell. Definition Determining whether some gastropods should be called sea snails is not always easy. Some species that live in brackish water (such as certain neritids) can be listed as either freshwater snails or marine snails, and some species that live at or just above the high tide level (for example species in the genus '' Truncatella'') are sometimes considered to be sea snails and sometimes listed as land snails. Anatomy Sea snails are a very large group of animals and a very diverse one. Most snails that live in salt water respire using a gill or gills; a few species, though, have a lung, are intertidal, and are active only at low tide when they can move around in the air. These air-breathing species includ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marine (ocean)
The ocean (also the sea or the world ocean) is the body of salt water that covers approximately 70.8% of the surface of Earth and contains 97% of Earth's water. An ocean can also refer to any of the large bodies of water into which the world ocean is conventionally divided."Ocean." ''Merriam-Webster.com Dictionary'', Merriam-Webster, |
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] |
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] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bursidae
The Bursidae, common name "frog snails" or "frog shells", are a rather small taxonomic family of large sea snails, marine gastropod predatory snails in the clade Littorinimorpha. MolluscaBase eds. (2020). MolluscaBase. Bursidae Thiele, 1925. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=22995 on 2020-08-19 Distribution Most species in this family occur on rocks or coral reefs in shallow waters of tropical oceans, including the Indo-Pacific, the Caribbean Sea, and other marginal warm seas, but they are also found in the Atlantic Ocean and the Mediterranean Sea. Only a few are found on sandy bottoms of deeper waters of the continental shelf. Shell description The thick, ovate to slightly elongated shells are coarsely sculptured, resembling the triton shells of the Ranellidae. The intersection of the spiral ribs and the axial sculpture results in a strong nodulose pattern of more or less round knobs. This warty surfa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Register Of Marine Species
The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive list of names of marine organisms. Content The content of the registry is edited and maintained by scientific specialists on each group of organism. These taxonomists control the quality of the information, which is gathered from the primary scientific literature as well as from some external regional and taxon-specific databases. WoRMS maintains valid names of all marine organisms, but also provides information on synonyms and invalid names. It is an ongoing task to maintain the registry, since new species are constantly being discovered and described by scientists; in addition, the nomenclature and taxonomy of existing species is often corrected or changed as new research is constantly being published. Subsets of WoRMS content are made available, and can have separate badging and their own home/launch pages, as "subregisters", such as the ''World List of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crossata Barbarajeanae
''Crossata'' is a genus of sea snails, marine (ocean), marine gastropod mollusks in the family (biology), family Bursidae, the frog shells. Species Species within the genus ''Crossata'' include: * ''Crossata barbarajeanae'' C. L. Powell & Berschauer, 2017 * ''Crossata californica'' (Hinds, 1843) * ''Crossata fuscopicta'' (Sowerby III, 1893) * ''Crossata ventricosa'' (Broderip, 1833) ;Species brought into synonymy: * ''Crossata californica'' (Hinds, 1843): synonym of ''Crossata ventricosa'' (Broderip, 1833) References * Powell & Berschauer: ''Crossata (Gastropoda: Bursidae) in the eastern Pacific: A morphologic and paleontologic perspective''; The Festivus vol. 49 (3); 2017. Bursidae {{Bursidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crossata Californica
''Crossata californica'' is a species of marine mollusk. Commonly known as the California frog shell, this mollusk is primarily found on offshore rocks of the Pacific coast of North America. The shells typically measure about in length. References Taxa named by Richard Brinsley Hinds Molluscs described in 1843 Western North American coastal fauna {{Bursidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crossata Fuscopicta
''Crossata'' is a genus of sea snails, marine gastropod mollusks in the family Bursidae, the frog shells. Species Species within the genus ''Crossata'' include: * ''Crossata barbarajeanae ''Crossata'' is a genus of sea snails, marine (ocean), marine gastropod mollusks in the family (biology), family Bursidae, the frog shells. Species Species within the genus ''Crossata'' include: * ''Crossata barbarajeanae'' C. L. Powell & Bersc ...'' C. L. Powell & Berschauer, 2017 * '' Crossata californica'' (Hinds, 1843) * '' Crossata fuscopicta'' (Sowerby III, 1893) * '' Crossata ventricosa'' (Broderip, 1833) ;Species brought into synonymy: * ''Crossata californica'' (Hinds, 1843): synonym of ''Crossata ventricosa'' (Broderip, 1833) References * Powell & Berschauer: ''Crossata (Gastropoda: Bursidae) in the eastern Pacific: A morphologic and paleontologic perspective''; The Festivus vol. 49 (3); 2017. Bursidae {{Bursidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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