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Platycythara
''Platycythara'' is a genus of sea snails, marine gastropod mollusks in the family Mangeliidae. Species Species within the genus ''Platycythara'' include: * '' Platycythara curta'' (Dall, 1919) * ''Platycythara elata ''Platycythara elata'', common name the elongate mangelia, is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae. Description The length of the shell attains 4.75 mm, its diameter 2 mm. (Original description ...'' (Dall, 1889) * '' Platycythara electra'' (Dall, 1919) * † '' Platycythara eurystoma'' W.P. Woodring, 1928 ;Species brought intoi synonymy: * † ''Platycythara metria'' (Dall 1903): synonym of '' Vitricythara metria'' (Dall, 1903) References * Woodring, W. P. "Miocene molluscs from Bowden, Jamaica. Part 2: gastropods and discussion of results. Contributions to the geology and palaeontology of the West Indies." Carnegie Institute Washington Publication 385 (1928): 144–201. External links Bouchet P., Kant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platycythara
''Platycythara'' is a genus of sea snails, marine gastropod mollusks in the family Mangeliidae. Species Species within the genus ''Platycythara'' include: * '' Platycythara curta'' (Dall, 1919) * ''Platycythara elata ''Platycythara elata'', common name the elongate mangelia, is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae. Description The length of the shell attains 4.75 mm, its diameter 2 mm. (Original description ...'' (Dall, 1889) * '' Platycythara electra'' (Dall, 1919) * † '' Platycythara eurystoma'' W.P. Woodring, 1928 ;Species brought intoi synonymy: * † ''Platycythara metria'' (Dall 1903): synonym of '' Vitricythara metria'' (Dall, 1903) References * Woodring, W. P. "Miocene molluscs from Bowden, Jamaica. Part 2: gastropods and discussion of results. Contributions to the geology and palaeontology of the West Indies." Carnegie Institute Washington Publication 385 (1928): 144–201. External links Bouchet P., Kant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platycythara Elata
''Platycythara elata'', common name the elongate mangelia, is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae. Description The length of the shell attains 4.75 mm, its diameter 2 mm. (Original description) The small, elongated, narrow shell is translucent white with streaks and lines of dark brown or yellow. The first whorl of the protoconch is minute, tilted glassy. The subsequent whorls are translucent, smooth, or with oblique transverse sculpture which almost imperceptibly passes into the ribbing of the adult. In all there are seven whorls including the protoconch. The early ones are rounded, and soon take on an angulation just in front of the fasciole. The spiral sculpture consists of three or four fine threads on the fasciole, and three or four stronger threads between the fasciole and the suture in front. On the body whorl there are fifteen or twenty of these between the shoulder of the whorl and the front end of the siphonal canal. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platycythara Curta
''Platycythara curta'' is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae. Description The length of the shell is 2.3 m, its diameter 1.5 mm. (Original description) The small, short, solid, inflated shell has a brownish color,. The minute protoconch is smooth. It is succeeded by about three subsequent strongly sculptured whorls. The suture is distinct. The axial sculpture consists of (on the penultimate whorl about 15) narrow, sharp, similar riblets with wider interspace. This sculpture extends over the base. The spiral sculpture consists of (on the body whorl The body whorl is part of the morphology of the shell in those gastropod mollusks that possess a coiled shell. The term is also sometimes used in a similar way to describe the shell of a cephalopod mollusk. In gastropods In gastropods, the b ... about 16) even regular similar threads with subequal interspaces which pass over but do not nodulate the ribs. The aperture is narrow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platycythara Electra
''Platycythara electra'' is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae. Description The length of the shell attains 5.5 mm, its diameter 2 mm. (Original description) The minute shell is waxen white, sometimes with faint purplish spiral bands. The protoconch contains 2½, whorls. The protoconch is turbinate, the first two whorls are smooth, polished, brown. It is followed by 4½ subsequent reticulate whorls. These are axially minutely ribbed, the sculpture passing into that of the normal subsequent whorls. The suture is distinct, not appressed. The spiral sculpture between the succeeding suture and the fasciole on the spire, consists of four equal and equally spaced threads with slightly wider interspaces. Rarely the posterior thread is more prominent than the others. On the body whorl there are about nine threads, more adjacent as they approach the siphonal canal which has about six more closely set. The axial sculpture consists ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platycythara Eurystoma
''Platycythara eurystoma'', is an extinct species of sea snail, a marine gastropod mollusk in the family Mangeliidae. Description Distribution This extinct species was found in Pliocene strata of the Bowden Formation The Bowden Formation is a geologic formation in Jamaica. It preserves fossils dating back to the Neogene period. See also * List of fossiliferous stratigraphic units in Jamaica The Paleobiology Database lists no known fossiliferous stratigrap ..., Jamaica. References eurystoma Gastropods described in 1928 {{Mangeliidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mangeliidae
Mangeliidae is a monophyletic family of small to medium-sized, predatory sea snails, marine gastropod mollusks in the superfamily Conoidea. Bouchet, P. (2011). Mangeliidae P. Fischer, 1883. In: MolluscaBase (2016). Accessed through: World Register of Marine Species at http://marinespecies.org/aphia.php?p=taxdetails&id=153853 on 2017-02-23Bouchet P. & Rocroi J.-P. (Ed.) (2005). "Classification and nomenclator of gastropod families". ''Malacologia'' 47(1-2). . 397 pp. Prior to 2011, both the subfamilies Mangeliinae and Oenopotinae had been placed in the family Conidae. In 2011, Bouchet, Kantor ''et al'' merged the two subfamilies into one taxon, which they elevated to the rank of family. This was based on anatomical characters and a dataset of molecular sequences of three gene fragments. Mangeliidae is a sister-clade to the family Raphitomidae As with their relatives in the family Conidae, species in the family Mangelidae use potent venoms to catch their prey. Through this cha ... [...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] |
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