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Peristichia
''Peristichia'' is a genus of sea snails, marine (ocean), marine gastropod mollusks in the family (biology), family Pyramidellidae, the pyrams and their allies.WoRMS (2010). ''Peristichia''. 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=415795 on 31 January 2012 Taxonomy In his original paper, Dall proposed ''Peristichia'' as a genus of dubious affinities and placed it later in the family Pyramidellidae. Paul Bartsch, his collaborator, later thought it was a subgenus of ''Turbonilla''.P. Bartsch (1904), Proc. Biol. Soc. Washington, vol. 17. p. 9 Johannes Thiele (zoologist), Johannes Thiele does not even mention this genus in his ''Handbuch der Systematischen Weichtierkunde''. (1929). Wilhelm August Wenz in his ''Handbuch der Paläozoologie, Band 6, Gastropoda'', also thought it was probably a subgenus of ''Turbonilla'', but added a ques ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peristichia Toreta
''Peristichia toreta'', common name the tower pyram, is a species of small sea snail, a marine (ocean), marine gastropod mollusc in the family (biology), family Pyramidellidae, the pyrams and their allies.Rosenberg, G. (2011). ''Peristichia toreta'' Dall, 1889. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=420466 on 2012-01-12 Description The length of an adult shell can be as much as 13.5 mm. The shell has two basal keels. The axial Sculpture (mollusc), sculpture consists of strong ribs, and the spiral sculpture consists of strong ridges. Distribution This species occurs in the following locations: * Gulf of Mexico * Atlantic Ocean off North Carolina References External links Biodiversity Heritage Library (11 publications)Encyclopedia of LifeUSNM Invertebrate Zoology Mollusca CollectionITISWorld Register of Marine SpeciesAnother image at the BMSM website Pyramidellidae Gastropods described in 1889 {{ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peristichia Lepta
''Peristichia lepta'' is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.WoRMS (2010). ''Peristichia lepta'' Pimenta, Santos & Absalao, 2008. 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=458148 on 2012-01-12 Description The shell grows to a length of 4.2 mm. Distribution This species occurs in the Atlantic Ocean off Southeast Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area .... References * Pimenta A.D., Santos F.N. & Absalão R.S. 2008. Review of the genera Ividia, Folinella, Menestho, Pseudoscilla, Tryptichus and Peristichia (Gastropoda, Pyramidellidae) from Br ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peristichia Pedroana
''Peristichia pedroana'' is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.Rosenberg, G. (2011). ''Peristichia pedroana'' (Dall & Bartsch, 1909). Accessed through: 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 specialist ... at http://www.marinespecies.org/aphia.php?p=taxdetails&id=575932 on 2012-01-12Keen M. (1971). Sea shells of Tropical West America. Marine mollusks from Baja California to Perú. (2nd edit.). Stanford University Press pp. 1064: References External links World Register of Marine Species Pyramidellidae Gastropods described in 1909 {{Pyramidellidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peristichia Agria
''Peristichia agria'' is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.Rosenberg, G. (2011). ''Peristichia agria'' Dall, 1889. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=420464 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 6 mm. Distribution This marine species occurs in the following locations: * Caribbean Sea * Colombia * Gulf of Mexico * Puerto Rico * Atlantic Ocean : from North Carolina to Central Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 mill ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peristichia Bathyraphe
''Peristichia bathyraphe'' is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.Rosenberg, G. (2011). ''Peristichia bathyraphe'' (Sowerby I, 1901). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=588481 on 2012-01-12 Distribution The type specimen of this marine species was found off Port Alfred A port is a maritime facility comprising one or more wharves or loading areas, where ships load and discharge cargo and passengers. Although usually situated on a sea coast or estuary, ports can also be found far inland, such as Ha ..., South Africa. References External links World Register of Marine Species Pyramidellidae Gastropods described in 1901 {{Pyramidellidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peristichia Pliocena
''Peristichia pliocena'' is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.WoRMS (2010). ''Peristichia pliocena'' (Bartsch, 1955). Accessed through: 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 specialist ... at http://www.marinespecies.org/aphia.php?p=taxdetails&id=420465 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 4.5 mm. Distribution This species occurs in the following locations: * Gulf of Mexico References External links ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peristichia Hermosa
''Peristichia hermosa'' is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.WoRMS (2011). ''Peristichia hermosa'' (Lowe, 1935). Accessed through: 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 specialist ... at http://www.marinespecies.org/aphia.php?p=taxdetails&id=575931 on 2012-01-12Keen M. (1971). Sea shells of Tropical West America. Marine mollusks from Baja California to Perú. (2nd edit.). Stanford University Press pp. 1064: References External links World Register of Marine Species Pyramidellidae Gastropods described in 1935 {{Pyramidellidae-stub ... [...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 Pulmonata ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turbonilla
''Turbonilla'' is a large genus of ectoparasitic sea snails, marine gastropod molluscs in the family Pyramidellidae, the pyrams and their allies.Bouchet, P.; Gofas, S. (2011). ''Turbonilla'' Risso, 1826. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=138421 on 2011-11-10 This genus in its present state is not monophyletic. Many species may end up reclassified in other genera. (personal communication by Philippe Bouchet, chief editor of the Mollusca in WoRMS). General description The generally slender, bluish-white to milk-white, semitranslucent shell is more or less elongated and has a cylindro-conic shape. The apex is sinistral. The reversed, flattened or projecting protoconch consists of 1½ to 3 whorls that are oblique or tilted from transverse to the axis. The teleoconch contains many planulate or more or less convex whorls. These are sometimes shouldered and are generally ornamented with less prominent lon ... [...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, prominent ... [...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] |
