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Scaevatula Sidoniae
''Scaevatula'' is a genus of small predatory sea snails, marine gastropod mollusks in the family Clavatulidae.Bouchet, P. (2011). Scaevatula Gofas, 1990. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=405088 on 2011-08-27 Most gastropod species, and especially the marine species, have a dextral shell. The genus ''Scaevatula'' represents an exception to this rule, as the species are sinister. Within the family Clavatulidae, the extinct species ''Clavatula aralica ''Clavatula'' is a genus of sea snails, marine gastropod mollusks in the family Clavatulidae. Description In this genus, the shell is fusiform, with a well-produced spire. The whorls are coronated with tubercles or short spines at the suture;. T ...'' (Luković, 1924) is the only other exception. Species Species within the genus ''Scaevatula'' include: * '' Scaevatula amancioi'' Rolan & Fernandes, 1992 * '' Scaevatula pellisserpentis'' Gofas, 1990 * †... [...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] |
Predatory
Predation is a biological interaction where one organism, the predator, kills and eats another organism, its prey. It is one of a family of common feeding behaviours that includes parasitism and micropredation (which usually do not kill the host) and parasitoidism (which always does, eventually). It is distinct from scavenging on dead prey, though many predators also scavenge; it overlaps with herbivory, as seed predators and destructive frugivores are predators. Predators may actively search for or pursue prey or wait for it, often concealed. When prey is detected, the predator assesses whether to attack it. This may involve ambush or pursuit predation, sometimes after stalking the prey. If the attack is successful, the predator kills the prey, removes any inedible parts like the shell or spines, and eats it. Predators are adapted and often highly specialized for hunting, with acute senses such as vision, hearing, or smell. Many predatory animals, both vertebrate an ... [...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] |
Clavatulidae
Clavatulidae is a taxonomic family of sea snails, marine gastropod mollusks in the superfamily Conoidea. The family is not well differentiated morphologically. Clavatulidae was raised, based on cladistic analysis, from subfamily to the family level by Rosenberg in 1998. It is no longer regarded as a subfamily of Turridae by several malacologists (Kantor, Sysoev).World Register of Marine Species: Clavatulidae accessed 1 April 2010. This family has no subfamilies. General characteristics This family consists of species with a medium-sized to rather large, fusiform shell. The oblong, pointed is rather high. Th ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Journal Of Molluscan Studies
The ''Journal of Molluscan Studies'' is the peer-reviewed scientific journal of the Malacological Society of London, covering research in malacology.About the journal accessed 6 December 2010. Previous names of this journal include ''Proceedings of the Malacological Society'', and ''Proceedings of the Malacological Society of London'' (abbreviated as ''Proc. Malacol. Soc. Lond.''). Abstracting and indexing The journal is abstracted and indexed by ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clavatula Aralica
''Clavatula'' is a genus of sea snails, marine gastropod mollusks in the family Clavatulidae. Description In this genus, the shell is fusiform, with a well-produced spire. The whorls are coronated with tubercles or short spines at the suture;. The aperture is oval. The columellar lip is smooth, arcuate, and callous behind. The outer lip is thin and arcuated, with the anal sinus situated below the sutural coronal. The operculum is semioval with its nucleus about the middle, on the inner side. The foot is large, short and obtuse behind. The eyes are placed externally near the extremity of the tentacles. The radula contains a small unicuspid central tooth with single sharp laterals (formula :1-1-1). The species mostly inhabits the west coast of Africa. Species Species within the genus ''Clavatula'' include: * '' Clavatula ahuiri'' Cossignani & Ardovini, 2014 * †'' Clavatula aralica'' (Luković, 1924) (an extinct species from the Eocene in western Kazakhstan (Tshegan Formati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scaevatula Amancioi
''Scaevatula amancioi'' is a species of sea snail, a marine gastropod mollusk in the family Clavatulidae. Distribution This species is endemic to São Tomé and PrÃncipe São Tomé and PrÃncipe (; pt, São Tomé e PrÃncipe (); English: " Saint Thomas and Prince"), officially the Democratic Republic of São Tomé and PrÃncipe ( pt, República Democrática de São Tomé e PrÃncipe), is a Portuguese-speaking i .... References Rolán, E., and F. Fernandes. "Aportaciones al conocimiento de la familia Turridae Swainson, 1840 (Mollusca, Gastropoda) en las islas de Sâo Tomé y PrÃncipe (Golfo de Guinea)." (1992) External links * amancioi Endemic fauna of São Tomé and PrÃncipe Invertebrates of São Tomé and PrÃncipe Gastropods described in 1992 Taxobox binomials not recognized by IUCN {{Clavatulidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scaevatula Pellisserpentis
''Scaevatula pellisserpentis'' is a species of small predatory sea snail, a marine gastropod mollusk in the family Clavatulidae. Description The shell grows to a length of 8 mm. Its whorls are sinistral. Distribution This marine species is endemic to São Tomé and PrÃncipe São Tomé and PrÃncipe (; pt, São Tomé e PrÃncipe (); English: " Saint Thomas and Prince"), officially the Democratic Republic of São Tomé and PrÃncipe ( pt, República Democrática de São Tomé e PrÃncipe), is a Portuguese-speaking i .... References Gofas, S. (1990) ''Scaevatula n. gen., a sinistral clavatuline turrid from West Africa''. Archiv für Molluskenkunde, 120, 11–22 External links * Holotype in the MNHN, Paris pellisserpentis Endemic fauna of São Tomé and PrÃncipe Invertebrates of São Tomé and PrÃncipe Gastropods described in 1990 Taxonomy articles created by Polbot {{Clavatulidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scaevatula Sidoniae
''Scaevatula'' is a genus of small predatory sea snails, marine gastropod mollusks in the family Clavatulidae.Bouchet, P. (2011). Scaevatula Gofas, 1990. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=405088 on 2011-08-27 Most gastropod species, and especially the marine species, have a dextral shell. The genus ''Scaevatula'' represents an exception to this rule, as the species are sinister. Within the family Clavatulidae, the extinct species ''Clavatula aralica ''Clavatula'' is a genus of sea snails, marine gastropod mollusks in the family Clavatulidae. Description In this genus, the shell is fusiform, with a well-produced spire. The whorls are coronated with tubercles or short spines at the suture;. T ...'' (Luković, 1924) is the only other exception. Species Species within the genus ''Scaevatula'' include: * '' Scaevatula amancioi'' Rolan & Fernandes, 1992 * '' Scaevatula pellisserpentis'' Gofas, 1990 * †... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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