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Strombus
''Strombus'' is a genus of medium to large sea snails, marine gastropod molluscs in the family Strombidae, which comprises the true conchs and their immediate relatives. The genus ''Strombus'' was named by Swedish Naturalist Carl Linnaeus in 1758. Around 50 living species were recognized, which vary in size from fairly small to very large. Six species live in the greater Caribbean region, including the queen conch, ''Strombus gigas'' (now usually known as ''Eustrombus gigas'' or ''Lobatus gigas''), and the West Indian fighting conch, '' Strombus pugilis''. However, since 2006, many species have been assigned to discrete genera. These new genera are, however, not yet found in most textbooks and collector's guides. Worldwide, several of the larger species are economically important as food sources; these include the endangered queen conch, which very rarely also produces a pink, gem-quality pearl. In the geological past, a much larger number of species of ''Strombus'' existed. Fos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strombus Gigas
''Aliger gigas,'' originally known as ''Strombus gigas'' or more recently as ''Lobatus gigas'', commonly known as the queen conch, is a species of large sea snail, a marine gastropod mollusc in the family of true conches, the Strombidae. This species is one of the largest molluscs native to the Caribbean Sea, and tropical northwestern Atlantic, from Bermuda to Brazil, reaching up to in shell length. ''A. gigas'' is closely related to the goliath conch, '' Lobatus goliath'', a species endemic to Brazil, as well as the rooster conch, '' Aliger gallus''. The queen conch is herbivorous. It feeds by browsing for plant and algal material growing in the seagrass beds, and scavenging for decaying plant matter. These large sea snails typically reside in seagrass beds, which are sandy plains covered in swaying sea grass and associated with coral reefs, although the exact habitat of this species varies according to developmental age. The adult animal has a very large, solid and heav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strombidae
Strombidae, commonly known as the true conchs, is a taxonomic family of medium-sized to very large sea snails in the superfamily Stromboidea, and the Epifamily Neostromboidae. The term true conchs, being a common name, does not have an exact meaning. It may refer generally to any of the Strombidae but sometimes is used more specifically to include only ''Strombus'' and ''Lambis''. The family currently includes 26 extant, and 10 extinct genera. Distribution Strombid gastropods live mainly in tropical and subtropical waters. These animals are widespread in the Indo-West Pacific, where most species and genera occur. Nearly 40 of the living species that used to belong to the genus ''Strombus'' can be found in the Indo-Pacific region.Abbott, R.T. (1960). "The genus Strombus in the Indo-Pacific". ''Indo-Pacific Mollusca'' 1(2): 33-144 They also occur in the eastern Pacific and Western Atlantic, and a single species can be found on the African Atlantic coast. Six species of strombid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strombus Pugilis
''Strombus pugilis'', common names the fighting conch and the West Indian fighting conch, is a species of medium to large sea snail, a marine (ocean), marine gastropod mollusk in the family (biology), family Strombidae, the true conchs. ''S. pugilis'' is similar in appearance to ''Strombus alatus'', the Florida fighting conch. Shell description The maximum recorded gastropod shell, shell length is 110 mmWelch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". ''PLoS ONE'' 5(1): e8776. . or up to 130 mm,Leal, J.H. (2002). Gastropods. p. 99-147. In: Carpenter, K.E. (ed.). [ftp://ftp.fao.org/docrep/fao/009/y4160e/y4160e08.pdf The living marine resources of the Western Central Atlantic. Volume 1: Introduction, molluscs, crustaceans, hagfishes, sharks, batoid fishes, and chimaeras.] FAO Species Identification Guide for Fishery Purposes and American Society of Ichthyologists and Herpetologists Special Publication No. 5. 1600p. commonly to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strombus Alatus
''Strombus alatus'', the Florida fighting conch, is a species of medium-sized, warm-water sea snail, a marine gastropod mollusk in the family Strombidae, the true conchs. Distribution This conch occurs in the Western Atlantic Ocean from North Carolina to Florida and the Gulf of Mexico, Louisiana, Texas, and the east coast of Mexico. Description The shell can be as large as .Welch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". '' PLoS ONE'' 5(1): e8776. . This species is closely similar to '' Strombus pugilis'', the West Indian fighting conch, which has a more southerly range. ''S. alatus'' shells have less prominent subsutural spines and slightly more projected outer lips. Some scientists have treated the two as distinct species; others as subspecies. In an extensive study of the Stromboidea in 2005, Simone provisionally treated these as distinct species, but observed, "no spectacular morphological difference was found ndall related ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strombus Urceus
''Canarium urceus'' is a species of sea snail, a marine gastropod mollusk in the family Strombidae Strombidae, commonly known as the true conchs, is a taxonomic family of medium-sized to very large sea snails in the superfamily Stromboidea, and the Epifamily Neostromboidae. The term true conchs, being a common name, does not have an exact me ..., the true conchs. Sister taxa ''Canarium incisum'' (Wood, 1828); ''Canarium anatellum'' (Duclos, 1844); ''Canarium esculentum'' (Maxwell, Rymer, Congdon, Dekkers, 2020); ''Canarium geelvinkbaaiensis'' Dekkers and Maxwell, 2020; ''Canarium manintveldi'' Dekkers and Maxwell, 2020; ''Canarium youngorum'' Dekkers and Maxwell, 2020; ''Canarium orrae'' (Abbott, 1960) Description "The shell is elongated and fusiform and may appear biconic. The spire and bodywhorl have a distinctive rounded nodulated shoulder, that may become acute towards the anterior of the shell as the nodulation become finer, more acute and denser. The anterior canal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stromboid Notch
The stromboid notch is an anatomical feature which is found in the shell of one taxonomic family of medium-sized to large sea snails, the conches. Marine gastropods in the family Strombidae have a notch in the edge of the shell aperture not far from the siphonal canal. This indentation is called the stromboid notch. Its function is to enable the animal to extend one of its two stalked eyes out through the notch when the animal is active.Kenneth R. Wye, ''The Encyclopedia of Shells,'' London, 2004, p. 70. See also * ''Strombus'' * siphonal notch * siphonal canal The siphonal canal is an anatomical feature of the shells of certain groups of sea snails within the clade Neogastropoda. Some sea marine gastropods have a soft tubular anterior extension of the mantle called a siphon through which water is ... References Gastropod anatomy Mollusc shells {{gastropod-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conchs
Conch () is a common name of a number of different medium-to-large-sized sea snails. Conch shells typically have a high spire and a noticeable siphonal canal (in other words, the shell comes to a noticeable point at both ends). In North America, a conch is often identified as a queen conch, indigenous to the waters of the Gulf of Mexico and Caribbean. Queen conches are valued for seafood and are also used as fish bait. The group of conches that are sometimes referred to as "true conches" are marine gastropod molluscs in the family Strombidae, specifically in the genus '' Strombus'' and other closely related genera. For example, '' Lobatus gigas'', the queen conch, and '' Laevistrombus canarium'', the dog conch, are true conches. Many other species are also often called "conch", but are not at all closely related to the family Strombidae, including ''Melongena'' species (family Melongenidae) and the horse conch ''Triplofusus papillosus'' (family Fasciolariidae). Species comm ... [...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] |
Terebellum Terebellum
''Terebellum terebellum'', common name the Terebellum conch, is a species of sea snail, a marine gastropod mollusk in the family Seraphsidae, the true conchs. Description ''T. terebellum'' is a very active animal that can quickly bury itself in sand or swim away from danger. It uses its foot like a propeller to swim. Its shell is thin and fragile. Distribution ''T. terebellum'' are found throughout the Indo-Pacific region. Phylogeny The phylogenetic relationships among the Stromboidea have been accessed in 2005, by Simone. He proposed a cladogram (a tree of descent) based on an extensive morpho- anatomical analysis of representatives of Aporrhaidae, Strombidae, Xenophoridae and Struthiolariidae. In his analysis, Simone recognized Strombidae as a monophyletic taxon supported by 13 synapomorphies (traits that are shared by two or more taxa and their most recent common ancestor), with at least eight distinct genera. He considered the genus '' Terebellum'' as the most ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
10th Edition Of Systema Naturae
The 10th edition of ''Systema Naturae'' is a book written by Swedish naturalist Carl Linnaeus and published in two volumes in 1758 and 1759, which marks the starting point of zoological nomenclature. In it, Linnaeus introduced binomial nomenclature for animals, something he had already done for plants in his 1753 publication of '' Species Plantarum''. Starting point Before 1758, most biological catalogues had used polynomial names for the taxa included, including earlier editions of ''Systema Naturae''. The first work to consistently apply binomial nomenclature across the animal kingdom was the 10th edition of ''Systema Naturae''. The International Commission on Zoological Nomenclature therefore chose 1 January 1758 as the "starting point" for zoological nomenclature, and asserted that the 10th edition of ''Systema Naturae'' was to be treated as if published on that date. Names published before that date are unavailable, even if they would otherwise satisfy the rules. The only ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pearl
A pearl is a hard, glistening object produced within the soft tissue (specifically the mantle) of a living shelled mollusk or another animal, such as fossil conulariids. Just like the shell of a mollusk, a pearl is composed of calcium carbonate (mainly aragonite or a mixture of aragonite and calcite) in minute crystalline form, which has deposited in concentric layers. The ideal pearl is perfectly round and smooth, but many other shapes, known as baroque pearls, can occur. The finest quality of natural pearls have been highly valued as gemstones and objects of beauty for many centuries. Because of this, ''pearl'' has become a metaphor for something rare, fine, admirable and valuable. The most valuable pearls occur spontaneously in the wild, but are extremely rare. These wild pearls are referred to as ''natural'' pearls. ''Cultured'' or ''farmed'' pearls from pearl oysters and freshwater mussels make up the majority of those currently sold. Imitation pearls are also widely s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Grass
Seagrasses are the only flowering plants which grow in marine environments. There are about 60 species of fully marine seagrasses which belong to four families (Posidoniaceae, Zosteraceae, Hydrocharitaceae and Cymodoceaceae), all in the order Alismatales (in the clade of monocotyledons). Seagrasses evolved from terrestrial plants which recolonised the ocean 70 to 100 million years ago. The name ''seagrass'' stems from the many species with long and narrow leaves, which grow by rhizome extension and often spread across large "meadows" resembling grassland; many species superficially resemble terrestrial grasses of the family Poaceae. Like all autotrophic plants, seagrasses photosynthesize, in the submerged photic zone, and most occur in shallow and sheltered coastal waters anchored in sand or mud bottoms. Most species undergo submarine pollination and complete their life cycle underwater. While it was previously believed this pollination was carried out without pollinator ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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