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Sayella Livida
''Sayella'' is a genus of minute sea snails, marine gastropod mollusks or micromollusks in the family Pyramidellidae, the pyrams and their allies.Bouchet, P. (2011). ''Sayella'' Dall, 1885. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=160442 on 2011-10-26Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda. Shell description Typical for this genus is the presence of only one prominent fold on the columella. Distribution This genus occurs in the Atlantic Ocean off Eastern North America and also in the tropical West Atlantic. Species Species within the genus ''Sayella'' include: * '' Sayella abjecta'' (Hedley, 1909) * '' Sayella chesapeakea'' Morrison, 1939 * '' Sayella fusca'' (C. B. Adams, 1839) * '' Sayella hemphillii'' (Dall, 1884) * '' Sayella mercedordae'' Penãs & Rolán, 1997 * '' Sayella watlingsi'' Morrison, 1939 ;Species brought into synonymy: * ''S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below 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 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. phylogenetic analysis should c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sayella Abjecta
''Sayella'' is a genus of minute sea snails, marine gastropod mollusks or micromollusks in the family Pyramidellidae Pyramidellidae, common name the pyram family, or pyramid shells, is a voluminous taxonomic family of mostly small and minute ectoparasitic sea snails, marine heterobranch gastropod molluscs. The great majority of species of pyrams are micromol ..., the pyrams and their allies.Bouchet, P. (2011). ''Sayella'' Dall, 1885. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=160442 on 2011-10-26Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda. Shell description Typical for this genus is the presence of only one prominent fold on the Columella (gastropod), columella. Distribution This genus occurs in the Atlantic Ocean off Eastern North America and also in the tropical West Atlantic. Species Species within the genus ''Sayella'' include: * ''Sayella ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tiberia Micalii
''Pyramidella dolabrata'', common name the "giant Atlantic pyram", is a somewhat variable species of small to medium-sized (max size 36 mm) sea snail, a marine gastropod mollusk in the (mostly minute) family Pyramidellidae, the pyram snails. Description The length of the shell varies between 14 mm and 36 mm. The white shell is conical, turreted, polished, elongated, slightly transparent. It has three or four transverse, narrow reddish or chestnut spiral lines on the body whorl, and two on the whorls of the teleoconch. The middle band s always narrowest ; the others are wider and deeper colored. The pointed spire is composed of from ten to twelve distinct, smooth, slightly convex whorls. The body whorl is more inflated than the other whorls. The shell is smooth and umbilicated. The ovate aperture is subrotund at its base, and generally marked within, with very prominent ridges continued upon some specimens even to the edge of the sharp outer lip. The outer lip i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sayella Watlingsi
''Sayella watlingsi'' is a species of minute sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.Rosenberg, G. (2010). ''Sayella watlingsi'' Morrison, 1939. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=533397 on 2012-01-12 Description The shell grows to a length of 3.4 mm. Distribution The type species was found off the Bahamas The Bahamas (), officially the Commonwealth of The Bahamas, is an island country within the Lucayan Archipelago of the West Indies in the Atlantic Ocean, North Atlantic. It takes up 97% of the Lucayan Archipelago's land area and is home to .... References * Morrison, J. P. E. 1939. ''Two new species of Sayella with notes on the genus''. Nautilus 53: 43-45 External links To Biodiversity Heritage Library (1 publication)To Encyclopedia of LifeTo World R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sayella Mercedordae
''Sayella mercedordae'' is a species of minute sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda. Description The shell grows to a length of 2.1 mm. Distribution This species occurs in the following locations: * Cape Verde , national_anthem = () , official_languages = Portuguese , national_languages = Cape Verdean Creole , capital = Praia , coordinates = , largest_city = capital , demonym ... References External links To Encyclopedia of Life Pyramidellidae Gastropods described in 1997 Gastropods of Cape Verde {{Pyramidellidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sayella Hemphillii
''Sayella hemphillii'' is a species of minute sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.Rosenberg, G. (2011). ''Sayella hemphillii'' (Dall, 1884). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=420468 on 2012-01-12Rosenberg, G., F. Moretzsohn, and E. F. García. 2009. Gastropoda (Mollusca) of the Gulf of Mexico, Pp. 579–699 in Felder, D.L. and D.K. Camp (eds.), Gulf of Mexico–Origins, Waters, and Biota. Biodiversity. Texas A&M Press, College Station, Texas. Description The shell grows to a length of 4 mm. Distribution This species occurs in the following locations: * Gulf of Mexico (Florida, Texas Texas (, ; Spanish language, Spanish: ''Texas'', ''Tejas'') is a state in the South Central United States, South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2 ...) Refere ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sayella Fusca
''Sayella fusca'', common name the brown sayella, is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Pyramidellidae, the pyrams and their allies.Rosenberg, G. (2011). ''Sayella fusca'' (C. B. Adams, 1839). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=160443 on 2012-01-12Rosenberg, G., F. Moretzsohn, and E. F. García. 2009. Gastropoda (Mollusca) of the Gulf of Mexico, Pp. 579–699 in Felder, D.L. and D.K. Camp (eds.), Gulf of Mexico–Origins, Waters, and Biota. Biodiversity. Texas A&M Press, College Station, Texas. Description The length of the shell varies between 3 mm and 6 mm. Distribution This species occurs in the following locations: * Caribbean Sea : Cuba, Puerto Rico * Gulf of Mexico : Mexico * Northwest Atlantic : Prince Edward Island, Canada; Gulf of Maine The Gulf of Maine is a large gulf of the Atlantic Ocean on the east coast of North America. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sayella Chesapeakea
''Sayella chesapeakea'' is a species of minute sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.Rosenberg, G. (2011). ''Sayella chesapeakea'' Morrison, 1939. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=160444 on 2012-01-12Rosenberg, G. 2004. Malacolog Version 3.3.2: Western Atlantic gastropod database. The Academy of Natural Sciences, Philadelphia, PA. Description The length of the shell measures 3.9 mm. Distribution This marine species occurs in the following locations: * Northwest Atlantic Ocean (Maryland to North Carolina North Carolina () is a state in the Southeastern region of the United States. The state is the 28th largest and 9th-most populous of the United States. It is bordered by Virginia to the north, the Atlantic Ocean to the east, Georgia and So ...) Notes Additional information regarding this species: * Distribution: Range: 38.5°N to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columella (gastropod)
The columella (meaning "little column") or (in older texts) pillar is a central anatomical feature of a coiled snail shell, a gastropod shell. The columella is often only clearly visible as a structure when the shell is broken, sliced in half vertically, or viewed as an X-ray image. The columella runs from the apex of the shell to the midpoint of the undersurface of the shell, or the tip of the siphonal canal in those shells which have a siphonal canal. If a snail shell is visualized as a cone of shelly material which is wrapped around a central axis, then the columella more or less coincides spatially with the central axis of the shell. In the case of shells that have an umbilicus, the columella is a hollow structure. The columella of some groups of gastropod shells can have a number of plications or folds (the columellar fold, plaits or plicae), which are usually visible when looking to the inner lip into the aperture of the shell. These folds can be wide or narrow, promine ... [...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 A land snail is any of the numerous species of snail that live on land, as opposed to the sea snails and freshwater snails. ''Land snail'' is the common name for terrestrial gastropod mollusks that have shells (those without shells are known .... Anatomy Sea snails are a very large group o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Register Of Marine Species
The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive list of names of marine organisms. Content The content of the registry is edited and maintained by scientific specialists on each group of organism. These taxonomists control the quality of the information, which is gathered from the primary scientific literature as well as from some external regional and taxon-specific databases. WoRMS maintains valid names of all marine organisms, but also provides information on synonyms and invalid names. It is an ongoing task to maintain the registry, since new species are constantly being discovered and described by scientists; in addition, the nomenclature and taxonomy of existing species is often corrected or changed as new research is constantly being published. Subsets of WoRMS content are made available, and can have separate badging and their own home/launch pages, as "subregisters", such as the ''World List ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyramidellidae
Pyramidellidae, common name the pyram family, or pyramid shells, is a voluminous taxonomic family of mostly small and minute ectoparasitic sea snails, marine heterobranch gastropod molluscs. The great majority of species of pyrams are micromolluscs. The pyram family is distributed worldwide with more than 6,000 named species in more than 350 nominal genera and subgenera. This family of micromollusks has been little studied and the phylogenetic relationships within the family are not well worked out. There is an absence of a general consensus regarding which species belong to a specific genus or subgenus, contributing to much confusion. Schander (1999) names more than 300 supraspecific names. As there has been no serious generic revision of the genera worldwide, generic polyphyly can be expected to be rampant throughout the family. However, the family itself is deemed monophyletic. However a study in 2011 seems to indicate that this family is deeply nested within the Pulmon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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