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Scutellina (echinoid)
''Scutellina'' is a genus of small limpet-like sea snails, marine gastropod mollusks in the family Phenacolepadidae. Scutellina is now a synonym of ''Plesiothyreus ''Plesiothyreus'' is a genus of very small sea snails or limpets, marine (ocean), marine gastropod mollusks in the subfamily Phenacolepadinae of the family (biology), family Phenacolepadidae. Species Species within the genus ''Plesiothyreus'' ...'' Cossmann, 1888 Species Species within the genus ''Scutellina'' include: * '' Scutellina gruveli'' Dautzenberg, 1929 References Phenacolepadidae {{Phenacolepadidae-stub ... [...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] |
Limpet
Limpets are a group of aquatic snails that exhibit a conical gastropod shell, shell shape (patelliform) and a strong, muscular foot. Limpets are members of the class Gastropoda, but are polyphyletic, meaning the various groups called "limpets" descended independently from different ancestral gastropods. This general category of conical shell is known as "patelliform" (dish-shaped). All members of the large and ancient marine clade Patellogastropoda are limpets. Within that clade, the members of the Patellidae family in particular are often referred to as "true limpets". Other groups, not in the same family, are also called limpets of one type or another, due to the similarity of their shells' shape. Examples include the Fissurellidae ("keyhole limpet") family, which is part of the Vetigastropoda clade (many other members of the Vetigastropoda do not have the Morphology (biology), morphology of limpets) and the Siphonariidae ("false limpets"), which use a siphon to pump water o ... [...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 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 .... Anatomy Sea snails are a very large group o ... [...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, [...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] |
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 ... [...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 opi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phenacolepadidae
Phenacolepadidae is a family of small sea snails or false limpets, marine gastropod mollusks in the clade Cycloneritimorpha (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). This family has no subfamilies according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005. Although the shell shape of genera in this family is that of a limpet, the family is in fact closely related to the Neritidae, the nerites. Genera and species Genera and species within the family Phenacolepadidae include: * Subfamily Phenacolepadinae Pilsbry, 1895 ** ''Hyalopatina'' Dall, 1889 ** ''Magadis'' Melvill & Standen, 1899 ** ''Plesiothyreus'' Cossman, 1888 ** ''Zacalantica'' Iredale, 1929 * Subfamily Shinkailepadinae Okutani, Saito & Hashimoto, 1989 ** '' Divia'' Fukumori, Yahagi, Warén & Kano, 2019 ** ''Shinkailepas'' Okutani et al., 1989 - a hydrothermal vent genus ** '' Thalassonerita'' Moroni, 1966 ; Genera brought into synonymy: * ''Cinnalapeta'' Iredale, 1929: synon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plesiothyreus
''Plesiothyreus'' is a genus of very small sea snails or limpets, marine (ocean), marine gastropod mollusks in the subfamily Phenacolepadinae of the family (biology), family Phenacolepadidae. Species Species within the genus ''Plesiothyreus'' include: * ''Plesiothyreus aculeatus'' (Pease, 1868) * ''Plesiothyreus arabicus'' (K.H.J. Thiele, 1909 ) (synonym: ''Phenacolepas arabica'' K.H.J. Thiele, 1909) * ''Plesiothyreus brocki'' (Thiele, 1909) * ''Plesiothyreus cancellatus'' (Pease, 1861) * ''Plesiothyreus cinnamomeus'' (Gould, 1846) * ''Plesiothyreus compressus'' (Pease, 1868) * ''Plesiothyreus cosmanni'' Jousseaume, 1894 * ''Plesiothyreus cytherae'' (Lesson, 1831) * ''Plesiothyreus elongatus'' (Thiele, 1909) * ''Plesiothyreus evansi'' (Biggs, 1973) * ''Plesiothyreus fischeri'' (Rochebrune, 1882) * ''Plesiothyreus galathea'' (J.B.P.A. Lamarck, 1819) (synonym: ''Phenacolepas galathea'' (J.B.P.A. Lamarck, 1819) * ''Plesiothyreus granocostatus'' (Pease, 1868) * ''Plesiothyreus granu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scutellina Gruveli
''Scutellina gruveli'' is a species of sea snail, a marine gastropod mollusk in the family Phenacolepadidae Phenacolepadidae is a family of small sea snails or false limpets, marine gastropod mollusks in the clade Cycloneritimorpha (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). This family has no subfamilies according to the .... Description Distribution References Phenacolepadidae Gastropods described in 1929 {{Phenacolepadidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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