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Calliotrochus
''Calliotrochus'' is a genus of sea snails, marine gastropod mollusks in the subfamily Stomatellinae of the family Trochidae, the top snails.Bouchet, P. (2012). ''Calliotrochus'' P. Fischer, 1879. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=512277 on 2012-11-23 Description This genus consists of thin, small, shining globose species with a turbinate shape. It has rounded, smooth or spirally striate, convex whorls. The aperture is rounded. The outer lip and columella are simple, thin and arcuate. The umbilicus is narrow. Species Species within the genus ''Calliotrochus'' include: * ''Calliotrochus marmoreus'' (Pease, 1861) The following species were brought into synonymy: * ''Calliotrochus excellens'' Iredale, 1937: synonym of ''Calliotrochus marmoreus'' (Pease, 1861) * ''Calliotrochus legrandi'' May, W.L. 1921: synonym of '' Minopa legrandi'' (Petterd, 1879) * ''Calliotrochus normalis'' Iredale, 1937: synonym of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calliotrochus
''Calliotrochus'' is a genus of sea snails, marine gastropod mollusks in the subfamily Stomatellinae of the family Trochidae, the top snails.Bouchet, P. (2012). ''Calliotrochus'' P. Fischer, 1879. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=512277 on 2012-11-23 Description This genus consists of thin, small, shining globose species with a turbinate shape. It has rounded, smooth or spirally striate, convex whorls. The aperture is rounded. The outer lip and columella are simple, thin and arcuate. The umbilicus is narrow. Species Species within the genus ''Calliotrochus'' include: * ''Calliotrochus marmoreus'' (Pease, 1861) The following species were brought into synonymy: * ''Calliotrochus excellens'' Iredale, 1937: synonym of ''Calliotrochus marmoreus'' (Pease, 1861) * ''Calliotrochus legrandi'' May, W.L. 1921: synonym of '' Minopa legrandi'' (Petterd, 1879) * ''Calliotrochus normalis'' Iredale, 1937: synonym of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calliotrochus Marmoreus
''Calliotrochus marmoreus'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Bouchet, P. (2012). ''Calliotrochus marmoreus'' (Pease, 1861). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=567748 on 2012-11-23Vilvens C. (2012) New species and new records of Seguenzioidea and Trochoidea (Gastropoda) from French Polynesia. Novapex 13(1): 1-23. (10 March 2012) Description The height of the shell attains 6 mm, its diameter also 6 mm. The small shell has a globose-turbinate shape and is narrowly perforate. It is thin, smooth, shining, marbled and mottled with various shades of olive, brown and pinkish, usually showing dots of white, or spiral lines of white and pink or brown articulated. The conical spire is short and has a minute, acute apex. The sutures are impressed. The about 5 whorls are rounded. The body whorl is large, convex below and indented around the narrow white um ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stomatellinae
Stomatellinae is a subfamily of small sea snails with a brilliantly nacreous interior of the shell, marine gastropod mollusks in the family Trochidae, the top snails.Gofas, S. (2012). Stomatellinae. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=382176 on 2012-06-12 Taxonomy In the earlier classification used in the Treatise on Invertebrate Paleontology, the Stomatellidae was included in the Archaeogastropoda, however, this taxon is now largely abandoned in favor of the more recently defined Vetigastropoda. According to Bouchet & Rocroi (2005), Williams et al. (2008)Williams S. T., Karube S. & Ozawa T. (September 2008) "Molecular systematics of Vetigastropoda: Trochidae, Turbinidae and Trochoidea redefined". ''Zoologica Scripta'' 37(5): 483-506. and Williams et al. (2010)Williams S. T., Donald K. M., Spencer H. G. & Nakano, T. (2010). "Molecular systematics of the marine gastropod families Trochidae and Calliostomati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minopa Legrandi
''Fossarina legrandi'', common name Legrand's top shell, is a species of very small sea snail, a marine gastropod mollusc or micromollusk in the family Trochidae, the top snails.MolluscaBase eds. (2020). MolluscaBase. Fossarina legrandi Petterd, 1879. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=719229 on 2020-11-25 Description The shell grows to a length of 5 mm. The small, thin shell has a depressed globose shape. It is highly polished, translucent and rich brown. The minute spire contains 2½ whorls and is very little elevated. The suture is much impressed. The aperture is inflately lunate. It is tinged white and faintly dilate at the inner portion. Distribution This marine species is endemic to Australia and occurs off New South Wales, South Australia, Tasmania, Victoria and Western Australia Western Australia (commonly abbreviated as WA) is a state of Australia occupying the western percent of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nanula Tasmanica
''Nanula tasmanica'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snailsMarshall, B. (2013). Nanula tasmanica (Petterd, 1879). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=719233 on 2014-02-10 Description The height of the shell attains 6 mm, its diameter 5.5 mm. The small, rather thin, perforate shell has a globose-turbinate shape. It is lusterless, whitish, tinged with yellow or greenish, unicolored or marked with a few angular radiating maculations of blackish-brown. The spire is very short. The sutures are impressed. The about 4½ whorls are convex, rounded, all over finely regularly spirally lirulate. The body whorl is rounded at the periphery, or very bluntly subangular. It is convex beneath and impressed around the umbilicus. The aperture is quite oblique, rounded-ovate, angular above, broadly rounded below, with a thin iridescent layer of nacre within. The ... [...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] |
Trochidae
The Trochidae, common name top-snails or top-shells, are a family of various sized sea snails, marine gastropod molluscs in the subclass Vetigastropoda. This family is commonly known as the top-snails because in many species the shell resembles a toy spinning top. Taxonomy The family Trochidae consists of the following subfamilies: * Alcyninae Williams, Donald, Spencer & Nakano, 2010 * Cantharidinae Gray, 1857 * Carinotrochinae S.-Q. Zhang, J. Zhang & S.-P. Zhang, 2020 * Chrysostomatinae Williams, Donald, Spencer & Nakano, 2010 * Fossarininae Bandel, 2009 * Halistylinae Keen, 1958 * Kaiparathininae B. A. Marshall, 1993 * Monodontinae Gray, 1857 * Stomatellinae Gray, 1840 * Trochinae Rafinesque, 1815 * Umboniinae H. Adams & A. Adams, 1854 (1840) Additionally, the following genera have not yet been placed in any subfamily: * '' Callumbonella'' Thiele, 1924 * †'' Coeloconulus'' Nützel, 2012 * '' Enida'' A. Adams, 1860 * †'' Eocalliostoma'' O. Haas, 1953 * †'' Fa ... [...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] |
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