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Cystiscus Pseustes
Cystiscus is a taxonomic genus of minute sea snails, marine gastropod mollusks or micromollusks. This genus was placed in the family Cystiscidae by Coovert and Coovert, 1995. Previously the genus was in the family Marginellidae, where it is still placed by many other malacologists. Diagnosis Shell minute to small, white, hyaline; spire immersed to low; lip thickened, smooth or weakly denticulate; external varix absent; siphonal notch absent; posterior notch absent; lacking collabral parietal callus ridge; columella multiplicate, with combined usually 2 to 8 plications plus parietal lirae, first plication usually strong and raised. Mantle smooth, at least partially extending over external shell surface. Shell description Shell minute to small (adult length ). Color white, hyaline; surface smooth, glossy. Shape usually elliptic, obovate, or subtriangular; weakly shouldered. Spire completely immersed to low. Aperture narrow to broad, usually wider anteriorly. Lip slightly to dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cystiscus Yasawaensis
''Cystiscus yasawaensis'' is a species of very small sea snail, a marine gastropod mollusk or micromollusk in the family Cystiscidae. Description The shell can grow to be 2.2 mm in length. Distribution ''Cystiscus yasawaensis'' can be found off the coast of Fiji Fiji ( , ,; fj, Viti, ; Fiji Hindi: फ़िजी, ''Fijī''), officially the Republic of Fiji, is an island country in Melanesia, part of Oceania in the South Pacific Ocean. It lies about north-northeast of New Zealand. Fiji consists .... References Cystiscidae Gastropods described in 2006 Yasawaensis {{Cystiscidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radula
The radula (, ; plural radulae or radulas) is an anatomical structure used by molluscs for feeding, sometimes compared to a tongue. It is a minutely toothed, chitinous ribbon, which is typically used for scraping or cutting food before the food enters the esophagus. The radula is unique to the molluscs, and is found in every class of mollusc except the bivalves, which instead use cilia, waving filaments that bring minute organisms to the mouth. Within the gastropods, the radula is used in feeding by both herbivorous and carnivorous snails and slugs. The arrangement of teeth ( denticles) on the radular ribbon varies considerably from one group to another. In most of the more ancient lineages of gastropods, the radula is used to graze, by scraping diatoms and other microscopic algae off rock surfaces and other substrates. Predatory marine snails such as the Naticidae use the radula plus an acidic secretion to bore through the shell of other molluscs. Other predatory marine snails ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cystiscus Boucheti
''Cystiscus boucheti'' is a species of very small sea snail, a marine gastropod mollusk or micromollusk in the family Cystiscidae. Description Distribution This marine species occurs off New Caledonia ) , anthem = "" , image_map = New Caledonia on the globe (small islands magnified) (Polynesia centered).svg , map_alt = Location of New Caledonia , map_caption = Location of New Caledonia , mapsize = 290px , subdivision_type = Sovereign st .... References Cystiscidae Gastropods described in 2003 Boucheti {{Cystiscidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cystiscus Beqae
''Cystiscus beqae'' is a species of very small sea snail, a marine gastropod mollusk or micromollusk in the family Cystiscidae Cystiscidae is a taxonomic family of minute sea snails, marine gastropod mollusks or micromollusks. Description The shell is minute to large, either white, uniformly colored, or patterned; the surface is smooth, sculptured, or axially costate; .... Description The size of the shell attains 1.46 mm. Distribution This marine species was found off Beqa Island, Fiji. References External links Wakefield A. & McCleery T. 2006. Descriptions of new species of Pacific Cystiscus Stimpson, 1865 (Gastropoda : Cystiscidae). Part 1: species with banded mantle patterns. Novapex 7 (Hors-série 4): 1-31 Cystiscidae Gastropods described in 2006 Beqae {{Cystiscidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cystiscus Aurantius
''Cystiscus aurantius'' is a species of very small sea snail, a marine gastropod mollusk or micromollusk in the family Cystiscidae. Description Distribution This marine species occurs off New Caledonia ) , anthem = "" , image_map = New Caledonia on the globe (small islands magnified) (Polynesia centered).svg , map_alt = Location of New Caledonia , map_caption = Location of New Caledonia , mapsize = 290px , subdivision_type = Sovereign st .... References Cystiscidae Gastropods described in 2003 Aurantius {{Cystiscidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Read Le Brockton Tomlin
John Read le Brockton Tomlin (15 August 1864 – 24 December 1954) was a British malacologist. He was one of the founders of the Malacological Society of London and was president of the Conchological Society of Great Britain & Ireland on two separate occasions. Conchological Society of Great Britain & Ireland. accessed 4 October 2010. Tomlin named more than a hundred of s, including: * The family [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cystiscus Aphanacme
''Cystiscus aphanacme'' is a species of very small sea snail, a marine gastropod mollusk or micromollusk in the family Cystiscidae Cystiscidae is a taxonomic family of minute sea snails, marine gastropod mollusks or micromollusks. Description The shell is minute to large, either white, uniformly colored, or patterned; the surface is smooth, sculptured, or axially costate; .... References Cystiscidae Gastropods described in 1918 Aphanacme {{Cystiscidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joseph Charles Hippolyte Crosse
Joseph Charles Hippolyte Crosse (1 October 1826 in Paris – 7 August 1898) was a French conchologist. With Paul-Henri Fischer (1835–1893) he was co-editor of ''Journal de Conchyliologie'' (from 1861). Crosse was the author of over 300 works on Mollusca. He lived in the Château d'Argeville near Fontainebleau and died there on 7 August 1898. The first ''Journal de Conchyliologie'' issue of 1899 was dedicated to his life and work. vol 67 no. 1, 1899, pages 21-2 Works *Notice sur les bulimes de la Nouvelle-Calédonie, et description de deux espèces nouvelles (1855). *Descriptions de coquilles nouvelles (1859). *Un Mollusque bien maltraité, ou Comment M. Victor-Hugo comprend l'organisation du poulpe (1866). *Diagnoses molluscorum novoru ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cystiscus Angasi
''Cystiscus angasi'' is a species of very small sea snail, a marine gastropod mollusk or micromollusk in the family Cystiscidae. Description The size of the shell attains 1.8 mm. Distribution This marine species was found off Port Jackson Port Jackson, consisting of the waters of Sydney Harbour, Middle Harbour, North Harbour and the Lane Cove and Parramatta Rivers, is the ria or natural harbour of Sydney, New South Wales, Australia. The harbour is an inlet of the Tasman Sea (p ..., Australia. References External links Crosse H. (1870). Diagnoses molluscorum novorum. Journal de Conchyliologie. 18: 301-304 Coovert G.A. & Coovert H.K. (1995) Revision of the supraspecific classification of marginelliform gastropods. The Nautilus 109(2-3): 43-110 Cystiscidae Gastropods described in 1870 Angasi {{Cystiscidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atlantic
The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth's surface and about 29% of its water surface area. It is known to separate the " Old World" of Africa, Europe and Asia from the "New World" of the Americas in the European perception of the World. The Atlantic Ocean occupies an elongated, S-shaped basin extending longitudinally between Europe and Africa to the east, and North and South America to the west. As one component of the interconnected World Ocean, it is connected in the north to the Arctic Ocean, to the Pacific Ocean in the southwest, the Indian Ocean in the southeast, and the Southern Ocean in the south (other definitions describe the Atlantic as extending southward to Antarctica). The Atlantic Ocean is divided in two parts, by the Equatorial Counter Current, with the North(ern) Atlantic Ocean and the South(ern) Atlantic Ocean split at about 8°N. Scientific explorations of the Atlanti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miocene
The Miocene ( ) is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recent" because it has 18% fewer modern marine invertebrates than the Pliocene has. The Miocene is preceded by the Oligocene and is followed by the Pliocene. As Earth went from the Oligocene through the Miocene and into the Pliocene, the climate slowly cooled towards a series of ice ages. The Miocene boundaries are not marked by a single distinct global event but consist rather of regionally defined boundaries between the warmer Oligocene and the cooler Pliocene Epoch. During the Early Miocene, the Arabian Peninsula collided with Eurasia, severing the connection between the Mediterranean and Indian Ocean, and allowing a faunal interchange to occur between Eurasia and Africa, including the dispersal of proboscideans into Eurasia. During the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oligogene
Oligogenic inheritance (Greek ὀλίγος – ''ὀligos'' = few, a little) describes a trait that is influenced by a few genes. Oligogenic inheritance represents an intermediate between monogenic inheritance in which a trait is determined by a single causative gene, and polygenic inheritance, in which a trait is influenced by many genes and often environmental factors. Historically, many traits were thought to be governed by a single causative gene (in what is deemed monogenic inheritance), however work in genetics revealed that these traits are comparatively rare, and in most cases so-called monogenic traits are predominantly influenced by one gene, but can be mediated by other genes of small effect. History Around the 1930s/40s, evidence that multiple genes could affect the risk of disease that showed discrete inheritance patterns, due to differences in the age of onset of disease for siblings. The age of onset for sibling pairs was very similar, but between pairs of siblings ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
