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Enaeta Cylleniformis
''Enaeta'' is a genus of sea snails, marine (ocean), marine gastropod mollusks in the family (biology), family Volutidae. Description The small shell has an ovate to fusiform shape. The protoconch is small and smooth. The teleoconch is covered with axial ribs. There is a conspicuous tooth-like blunt nodule on the midpoint of the Lip (gastropod), outer lip. The radula is uniserial with an interlocking central cusp. Distribution This species occurs from the Caribbean Sea to the Atlantic Ocean south to Brazil and Fernando de Noronha Islands. Species Species within the genus ''Enaeta'' include: * ''Enaeta barnesii'' (Gray, 1825) * ''Enaeta cumingii'' (Broderip, 1832) * ''Enaeta cylleniformis'' (Sowerby I, 1844) * ''Enaeta guildingii'' (Sowerby I, 1844) * ''Enaeta leonardhilli'' Petuch, 1982 * ''Enaeta reevei'' (Dall, 1907) References * Bail, P & Poppe, G. T. 2001. ''A conchological iconography: a taxonomic introduction of the recent Volutidae''. Hackenheim-Conchbook, 30 pp, 5 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. 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 of an ancestral taxon are grouped together (i.e. Phylogeneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radula
The radula (; : radulae or radulas) is an anatomical structure used by mollusks for feeding, sometimes compared to a tongue. It is a minutely toothed, chitinous ribbon, which is typically used for scraping or cutting food before the food enters the esophagus. The radula is unique to the mollusks, and is found in every class of mollusk except the bivalves, which instead use cilia, waving filaments that bring minute organisms to the mouth. Within the gastropods, the radula is used in feeding by both herbivorous and carnivorous snails and slugs. The arrangement of teeth ( denticles) on the radular ribbon varies considerably from one group to another. In most of the more ancient lineages of gastropods, the radula is used to graze, by scraping diatoms and other microscopic algae off rock surfaces and other substrates. Predatory marine snails such as the Naticidae use the radula plus an acidic secretion to bore through the shell of other mollusks. Other predatory marine snails, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enaeta Leonardhilli
''Enaeta leonardhilli'' is a species of sea snail, a marine gastropod mollusk in the family Volutidae Volutidae, common name volutes, are a taxonomic family of predatory sea snails that range in size from 9 mm to over 500 mm. They are marine gastropod mollusks. Most of the species have no operculum. Distribution This family of sea s ..., the volutes. Description A small species, attaining no more than about 15-20 mm. in size. Distribution This species occurs in the Atlantic Ocean off Brazil and the Fernando de Noronha Islands. References * Bail, P & Poppe, G. T. 2001. ''A conchological iconography: a taxonomic introduction of the recent Volutidae.'' Hackenheim-Conchbook, 30 pp, 5 pl. Volutidae Gastropods described in 1982 {{Volutidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enaeta Guildingii
''Enaeta guildingii'' is a species of sea snail, a marine gastropod mollusk in the family Volutidae Volutidae, common name volutes, are a taxonomic family of predatory sea snails that range in size from 9 mm to over 500 mm. They are marine gastropod mollusks. Most of the species have no operculum. Distribution This family of sea s ..., the volutes. Description Distribution References Volutidae Gastropods described in 1844 {{Volutidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enaeta Cylleniformis
''Enaeta'' is a genus of sea snails, marine (ocean), marine gastropod mollusks in the family (biology), family Volutidae. Description The small shell has an ovate to fusiform shape. The protoconch is small and smooth. The teleoconch is covered with axial ribs. There is a conspicuous tooth-like blunt nodule on the midpoint of the Lip (gastropod), outer lip. The radula is uniserial with an interlocking central cusp. Distribution This species occurs from the Caribbean Sea to the Atlantic Ocean south to Brazil and Fernando de Noronha Islands. Species Species within the genus ''Enaeta'' include: * ''Enaeta barnesii'' (Gray, 1825) * ''Enaeta cumingii'' (Broderip, 1832) * ''Enaeta cylleniformis'' (Sowerby I, 1844) * ''Enaeta guildingii'' (Sowerby I, 1844) * ''Enaeta leonardhilli'' Petuch, 1982 * ''Enaeta reevei'' (Dall, 1907) References * Bail, P & Poppe, G. T. 2001. ''A conchological iconography: a taxonomic introduction of the recent Volutidae''. Hackenheim-Conchbook, 30 pp, 5 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enaeta Cumingii
''Enaeta cumingii'' is a species of sea snail, a marine gastropod mollusk in the family ''Volutidae Volutidae, common name volutes, are a taxonomic family of predatory sea snails that range in size from 9 mm to over 500 mm. They are marine gastropod mollusks. Most of the species have no operculum. Distribution This family of sea s ...'', the volutes. Description Distribution References Volutidae Gastropods described in 1832 {{Volutidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enaeta Barnesii
''Enaeta barnesii'' is a species of sea snail, a marine gastropod mollusk in the family Volutidae Volutidae, common name volutes, are a taxonomic family of predatory sea snails that range in size from 9 mm to over 500 mm. They are marine gastropod mollusks. Most of the species have no operculum. Distribution This family of sea s ..., the volutes. Description Distribution References Volutidae Gastropods described in 1825 {{Volutidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brazil
Brazil, officially the Federative Republic of Brazil, is the largest country in South America. It is the world's List of countries and dependencies by area, fifth-largest country by area and the List of countries and dependencies by population, seventh-largest by population, with over 212 million people. The country is a federation composed of 26 Federative units of Brazil, states and a Federal District (Brazil), Federal District, which hosts the capital, Brasília. List of cities in Brazil by population, Its most populous city is São Paulo, followed by Rio de Janeiro. Brazil has the most Portuguese-speaking countries, Portuguese speakers in the world and is the only country in the Americas where Portuguese language, Portuguese is an Portuguese-speaking world, official language. Bounded by the Atlantic Ocean on the east, Brazil has a Coastline of Brazil, coastline of . Covering roughly half of South America's land area, it Borders of Brazil, borders all other countries and ter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caribbean Sea
The Caribbean Sea is a sea of the Atlantic Ocean, North Atlantic Ocean in the tropics of the Western Hemisphere, located south of the Gulf of Mexico and southwest of the Sargasso Sea. It is bounded by the Greater Antilles to the north from Cuba to Puerto Rico, the Lesser Antilles to the east from the Virgin Islands to Trinidad and Tobago, South America to the south from the Venezuela, Venezuelan coastline to the Colombia, Colombian coastline, and Central America and the Yucatán Peninsula to the west from Panama to Mexico. The Geopolitics, geopolitical region around the Caribbean Sea, including the numerous islands of the West Indies and adjacent coastal areas in the mainland of the Americas, is known as the Caribbean. The Caribbean Sea is one of the largest seas on Earth and has an area of about . The sea's deepest point is the Cayman Trough, between the Cayman Islands and Jamaica, at below sea level. The Caribbean coastline has many gulfs and bays: the Gulf of Gonâve, the Gul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lip (gastropod)
In the shell of gastropod mollusks (a snail shell), the lip is the free margin of the peristome (synonym: peritreme) or aperture (mollusc), aperture (the opening) of the gastropod shell. In dextral (right-handed) shells (most snail shells are right-handed), the right side or outer side of the aperture is known as the outer lip (''labrum''). The left side of the aperture is known as the inner lip or columellar lip (''labium'') if there is a pronounced lip there. In those species where there is no pronounced lip, the part of the body whorl that adjoins the aperture is known as the parietal wall. The outer lip is usually thin and sharp in immature shells, and in some adults (e.g. the land snails ''Helicella'' and ''Bulimulus''). However, in some other land snails and in many marine species the outer lip is ''thickened'' (also called ''callused''), or ''reflected'' (turned outwards). In some other marine species it is curled inwards (''inflected''), as in the cowries such as ''Cypraea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Snail
Sea snails are slow-moving marine (ocean), marine gastropod Mollusca, molluscs, usually with visible external shells, such as whelk or abalone. They share the Taxonomic classification, taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the absence of a visible Gastropod shell, 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 Neritidae, 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 (gastropod), Truncatella'') are sometimes considered to be sea snails and sometimes listed as land snails. Anatomy Sea snails are a very large and diverse group of animals. 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 w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teleoconch
The gastropod shell is part of the body of many gastropods, including snails, a kind of mollusc. The shell is an exoskeleton, which protects from predators, mechanical damage, and dehydration, but also serves for muscle attachment and calcium storage. Some gastropods appear shell-less (slugs) but may have a remnant within the mantle, or in some cases the shell is reduced such that the body cannot be retracted within it (semi-slug). Some snails also possess an operculum that seals the opening of the shell, known as the Aperture (mollusc), aperture, which provides further protection. The study of mollusc shells is known as conchology. The biological study of gastropods, and other molluscs in general, is malacology. Shell morphology terms vary by species group. Shell layers The gastropod shell has three major layers secreted by the Mantle (mollusc), mantle. The calcareous central layer, ostracum, is typically made of calcium carbonate (CaCO3) precipitated into an organic matrix ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
