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Tropidoturris
''Tropidoturris'' is a genus of sea snails, marine (ocean), marine gastropod mollusks in the family (biology), family Borsoniidae.Bouchet, P. (2015). Tropidoturris. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=432576 on 2016-04-04 Description The biconical shell shows spiral lirae, with or without strong axial ribs. The protoconch contains 1½ - 2 smooth Whorl (mollusc), whorls. The distinct shoulder angle is usually very strong and crenellated by axials (when present). The Columella (gastropod), columella shows a thin callus but no pleats. The outer lip is thin. The anal sinus is deep and wide. The small, translucent Operculum (gastropod), operculum has an oblanceolate shape and a terminal nucleus.Kilburn R.N. (1986). Turridae (Mollusca: Gastropoda) of southern Africa and Mozambique. Part 3. Subfamily Borsoniinae. Annals of the Natal Museum. 27: 633-720. page(s): 645 Distribution This marine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropidoturris Fossata
''Tropidoturris fossata'' is a species of sea snail, a marine gastropod mollusk in the family Borsoniidae.WoRMS (2015). Tropidoturris fossata. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=435086 on 2016-04-05 There is one subspecies: ''Tropidoturris fossata notialis'' Kilburn, 1986 Description The size of the shell attains 20.4 mm. (Original description) The fusiform shell is acuminated at both ends. Its color is pale fulvous, obscurely spotted with brown, here and there tinged with light purple, and coloured anteriorly with a purplish band. The spire is acute, gradately turreted. It contains 8 whorls. The first two are smooth, rounded, forming a papillary apex. The third is angular and ribbed below the angle. The rest is deeply concave at the top, the concavity being bordered by a sharp erect keel, below which the whorls are slightly convex, with short very oblique plicae, and about ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropidoturris Vizcondei
''Tropidoturris vizcondei'' is a species of sea snail, a marine gastropod mollusk in the family Borsoniidae.Bouchet, P. (2015). Tropidoturris vizcondei. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=740931 on 6 April 2016 Distribution This marine species occurs in the Mozambique Channel The Mozambique Channel (french: Canal du Mozambique, mg, Lakandranon'i Mozambika, pt, Canal de Moçambique) is an arm of the Indian Ocean located between the Southeast African countries of Madagascar and Mozambique. The channel is about long .... References Morassi M. & Bonfitto A. (2013) ''Four new African turriform gastropods (Mollusca: Conoidea)''. Zootaxa 3710(3): 271–280 External links * Biolib.cz: image of ''Tropidoturris vizcondei'' {{DEFAULTSORT:Tropidoturris Vizcondei vizcondei Gastropods described in 2013 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropidoturris Simplicicingula
''Tropidoturris simplicicingula'' is a species of sea snail, a marine gastropod mollusk in the family Borsoniidae.WoRMS (2015). Tropidoturris simplicicingula. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=435089 on 2016-04-06 There is one subspecies: ''Tropidoturris simplicicingula pondo'' Kilburn, 1986 Description The size of the biconic shell attains 19.8 mm. Characteristic for this species is the fact that the shell has no axial ribs. The narrower spiral lirae are declivous. The shoulder cord is stronger to carinate.Kilburn R.N. (1986). ''Turridae (Mollusca: Gastropoda) of southern Africa and Mozambique. Part 3. Subfamily Borsoniinae''. Annals of the Natal Museum. 27: 633–720 Distribution This marine species occurs off Agulhas Bank The Agulhas Bank (, from Portuguese for Cape Agulhas, ''Cabo das Agulhas'', "Cape of Needles") is a broad, shallow part of the southern African c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropidoturris Scitecosta
''Tropidoturris scitecosta'' is a species of sea snail, a marine gastropod mollusk in the family Borsoniidae.WoRMS (2015). Tropidoturris scitecosta. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=435088 on 2016-04-05 Description The size of the shell attains 23.5 mm, its width 7 mm. (Original description) The fusiform shell is acuminated at both ends. Its color is light brown without markings. The spire is acutely turreted. It contains 8 whorls. The apical ones are smooth rounded oblique. The rest are deeply and smoothly concave at the top, then slightly convex, furnished with numerous oblique rounded smooth close-set ribs, the ribs terminating in a well-defined angle at the top. The body whorl is about equal in length to the spire, slightly convex above and tapering below. It is spirally lirate towards the base and scarcely rostrate. The aperture is oblong, its interior smooth and, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropidoturris Planilirata
''Tropidoturris planilirata'' is a species of sea snail, a marine gastropod mollusk in the family Borsoniidae.WoRMS (2015). Tropidoturris planilirata. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=435087 on 2016-04-06 Description The size of the biconic shell attains 16.8 mm. Characteristical for this species is the fact that the shell has no axial ribs. The broad spiral lirae are close and flattened. The shoulder cord is very weak.Kilburn R.N. (1986). ''Turridae (Mollusca: Gastropoda) of southern Africa and Mozambique. Part 3. Subfamily Borsoniinae''. Annals of the Natal Museum. 27: 633–720 Distribution This marine species occurs off KwaZulu-Natal KwaZulu-Natal (, also referred to as KZN and known as "the garden province") is a province of South Africa that was created in 1994 when the Zulu bantustan of KwaZulu ("Place of the Zulu" in Zulu) and Natal Province were merged. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropidoturris Anaglypta
''Tropidoturris anaglypta'' is a species of sea snail, a marine gastropod mollusk in the family Borsoniidae.WoRMS (2015). Tropidoturris anaglypta. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=435085 on 2016-04-05 Description The size of the shell attains 10 mm. Distribution This marine species occurs off KwaZulu-Natal and Zululand, South Africa References * Kilburn R.N. (1986). ''Turridae (Mollusca: Gastropoda) of southern Africa and Mozambique. Part 3. Subfamily Borsoniinae''. Annals of the Natal Museum. 27: 633–720. * Steyn, D.G. & Lussi, M. (1998) ''Marine Shells of South Africa. An Illustrated Collector’s Guide to Beached Shells''. Ekogilde Publishers, Hartebeespoort, South Africa, ii + 264 pp. page(s): 156 External links * {{DEFAULTSORT:Tropidoturris Anaglypta Endemic molluscs of South Africa anaglypta Anaglypta is a range of paintable textured wallcoverings made ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Borsoniidae
Borsoniidae is a monophyletic family of small to medium-sized sea snails, marine gastropod mollusks in the superfamily Conoidea.Bouchet, P. (2011). Borsoniidae. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=153870 on 2011-08-12Bouchet P. & Rocroi J.-P. (Ed.) (2005). "Classification and nomenclator of gastropod families". '' Malacologia'' 47(1-2). . 397 pp. In 2011, Bouchet, Kantor ''et al''. brought genera from the subfamilies Clathurellinae and Raphitominae they were previously placed in the family Conidae), as well as genera from the subfamily Zemaciinae (at that point belonging to the family Turridae Turridae is a taxonomic family name for a number of predatory sea snails, marine gastropod mollusks in the superfamily Conoidea. MolluscaBase (2018). Turridae H. Adams & A. Adams, 1853 (1838). Accessed through: World Register of Marine Specie ...), together to form the family Borsoniidae. This re-arrangeme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example ''Cytisus aeolicus'' is an endemite of the Italian flora. ''Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to ... [...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] |
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] |
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] |
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