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Berthellina Quadridens
''Berthellina quadridens'' is a species of sea slug, a marine gastropod mollusc in the family Pleurobranchidae. Distribution Distribution of ''Berthellina quadridens'' includes Mexico, Belize, Colombia, Costa Rica, Panama, Venezuela, Aruba, Curaçao, Haiti, Jamaica, Puerto Rico, Virgin Islands, Sint Maarten, St. Lucia, Guadeloupe, Martinique, Barbados, St. Vincent and the Grenadines, Grenada, Trinidad and Tobago, Brazil. The type locality is Saint Thomas, U.S. Virgin Islands. Description The body is oval and inflated. Dorsum is smooth, covering the internal shell, which is located over the anterior portion of the viscera. The anterior end of the body has a large oral veil. Rhinophores are rolled, emerging between the veil and the dorsum. The color is yellow to orange, semi-translucent. It is up to 25 mm long. Welch (2010) listed that the maximum recorded length is 80 mm.Welch J. J. (2010). "The “Island Rule” and Deep-Sea Gastropods: Re-Examining the Evidence". '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Otto Andreas Lowson Mörch
Otto Andreas Lowson Mörch (his last name also spelled Mørch) (17 May 1828 – 25 January 1878) was a biologist, specifically a malacologist. He lived in Sweden, in Denmark, and in France. Taxa described * Bibliography and taxa described by Otto Andreas Lowson Mörch include: 1863 Mörch O. A. L. (1863). "Revision des especes du genre ''Oxynoe'' Rafinesque, et ''Lobiger'' Krohn". ''Journal de Conchyliologie'' 114348. * ''Oxynoe antillarum'' Mörch, 1863 on page 46 1864 Mörch O. A. L. (1864). "Fortegnelse over de i Danmark forekommende land- og ferskvandsblöddyr". ''Videnskabelige Meddelelser fra den Naturhistoriske Forening i Kjöbenhavn'' (2)1863(17-22): 265–367. * ''Valvata macrostoma'' Mörch, 1864 * Zonitidae Mörch, 1864, also known as the "true glass snails". Taxa named after Mörch * ''Glossodoris moerchi'' (Bergh, 1879) * ''Turbonilla mörchi ''Turbonilla mörchi'' is a species of minute sea snail, a marine gastropod mollusk in the family Pyramidellidae, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastropod Shell
The gastropod shell is part of the body of a Gastropoda, gastropod or snail, a kind of mollusc. The shell is an exoskeleton, which protects from predators, mechanical damage, and dehydration, but also serves for muscle attachment and calcium storage. Some gastropods appear shell-less (slugs) but may have a remnant within the mantle, or in some cases the shell is reduced such that the body cannot be retracted within it (semi-slug). Some snails also possess an operculum that seals the opening of the shell, known as the Aperture (mollusc), aperture, which provides further protection. The study of mollusc shells is known as conchology. The biological study of gastropods, and other molluscs in general, is malacology. Shell morphology terms vary by species group. Shell layers The gastropod shell has three major layers secreted by the Mantle (mollusc), mantle. The calcareous central layer, tracum, is typically made of calcium carbonate precipitated into an organic matrix known as c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orbicella Annularis
''Orbicella annularis'', commonly known as the boulder star coral, is a species of coral that lives in the western Atlantic Ocean and is the most thoroughly studied and most abundant species of reef-building coral Corals are marine invertebrates within the class Anthozoa of the phylum Cnidaria. They typically form compact colonies of many identical individual polyps. Coral species include the important reef builders that inhabit tropical oceans and ... in the Caribbean to date. It also has a comprehensive fossil record within the Caribbean. This species complex has long been considered a generalist that exists at depths between 0 and 80 meters that grew into varying colony shapes (heads, columns, plates) in response to differing light conditions. Only recently with the help of molecular techniques has ''O. annularis'' been shown to be a complex of at least three separate species.Knowlton, N.; Budd, A. F. 2001. "Recognizing coral species present and past. In: Jackson ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orbicella Faveolata
''Orbicella faveolata'', commonly known as mountainous star coral, is a colonial stony coral in the family Merulinidae. ''Orbicella faveolata'' is native to the coral coast of the Caribbean Sea and the Gulf of Mexico and is listed as "endangered" by the International Union for Conservation of Nature. ''O. faveolata'' was formerly known as ''Montastraea faveolata''. Description Colonies of this coral are solid and very large, forming a mound with a skirt. The surface is smooth and undulating, with small lumps, bulges or lobes. The corallites, the stony cups in which the polyps sit, are about in diameter and cover the entire surface of the coral. The colour is usually a pale brown, yellowish green and grey but may be deep brown, with fluorescent green highlights. This coral is part of a species complex including the closely related ''Orbicella annularis'' and ''Orbicella franksi'', but the former has more distinct nodules or small columns and the latter has a more irregular, lump ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sponges
Sponges, the members of the phylum Porifera (; meaning 'pore bearer'), are a basal animal clade as a sister of the diploblasts. They are multicellular organisms that have bodies full of pores and channels allowing water to circulate through them, consisting of jelly-like mesohyl sandwiched between two thin layers of cells. Sponges have unspecialized cells that can transform into other types and that often migrate between the main cell layers and the mesohyl in the process. Sponges do not have nervous, digestive or circulatory systems. Instead, most rely on maintaining a constant water flow through their bodies to obtain food and oxygen and to remove wastes. Sponges were first to branch off the evolutionary tree from the last common ancestor of all animals, making them the sister group of all other animals. Etymology The term ''sponge'' derives from the Ancient Greek word ( 'sponge'). Overview Sponges are similar to other animals in that they are multicellular, h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orbicella Faveolata, Colombia 2
''Orbicella'' is a genus of stony corals in the Merulinidae family. The Orbicella species complex comprises three sister species, namely ''Orbicella faveolata'', ''Orbicella annularis'' and ''Orbicella franksi'', all of which are shallow-water, zooxanthellate species and are native to the tropical western Atlantic Ocean, the Caribbean Sea and the Gulf of Mexico. These corals are ubiquitous and major reef-builders in the Caribbean. Their similar colony morphologies misled scientists to historically lump them into a single species, ''Montastraea annularis'', which included three morphotypes “bumpy”, “columnar” and “massive”. These growth forms were believed to arise as a response to abiotic factors (e.g., depth, light availability). This taxonomic classification was challenged by further ecological, reproductive, genetic, and morphologic evidence, which led to the re-description of three separate species, ''Montastraea faveolata'' (massive), ''M. annularis'' (columnar) a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhinophores
A rhinophore is one of a pair of chemosensory club-shaped, rod-shaped or ear-like structures which are the most prominent part of the external head anatomy in sea slugs, marine gastropod opisthobranch mollusks such as the nudibranchs, sea hares (Aplysiomorpha), and sap-sucking sea slugs (Sacoglossa). Etymology The name relates to the rhinophore's function as an organ of "smell". ''Rhino-'' means nose from Ancient Greek ῥίς ''rhis'' and from its genitive ῥινός ''rhinos''. "Phore" means "to bear" from New Latin ''-phorus'' and from Greek -phoros (φορος) "bearing", a derivative of ''phérein'' (φέρειν). Function Rhinophores are scent or taste receptors, also known as chemosensory organs situated on the dorsal surface of the head. They are primarily used for distance chemoreception and rheoreception (response to water current). The "scents" detected by rhinophores are chemicals dissolved in the sea water. The fine structure and hairs of the rhinophore ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saint Thomas, U
In religious belief, a saint is a person who is recognized as having an exceptional degree of holiness, likeness, or closeness to God. However, the use of the term ''saint'' depends on the context and denomination. In Catholic, Eastern Orthodox, Anglican, Oriental Orthodox, and Lutheran doctrine, all of their faithful deceased in Heaven are considered to be saints, but some are considered worthy of greater honor or emulation. Official ecclesiastical recognition, and consequently a public cult of veneration, is conferred on some denominational saints through the process of canonization in the Catholic Church or glorification in the Eastern Orthodox Church after their approval. While the English word ''saint'' originated in Christianity, historians of religion tend to use the appellation "in a more general way to refer to the state of special holiness that many religions attribute to certain people", referring to the Jewish tzadik, the Islamic walī, the Hindu rishi or Sikh g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Journal De Conchyliologie
A journal, from the Old French ''journal'' (meaning "daily"), may refer to: *Bullet journal, a method of personal organization *Diary, a record of what happened over the course of a day or other period *Daybook, also known as a general journal, a daily record of financial transactions *Logbook, a record of events important to the operation of a vehicle, facility, or otherwise *Record (other) *Transaction log, a chronological record of data processing *Travel journal In publishing, ''journal'' can refer to various periodicals or serials: *Academic journal, an academic or scholarly periodical **Scientific journal, an academic journal focusing on science **Medical journal, an academic journal focusing on medicine **Law review, a professional journal focusing on legal interpretation *Magazine, non-academic or scholarly periodicals in general **Trade magazine, a magazine of interest to those of a particular profession or trade **Literary magazine, a magazine devoted to literat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type Locality (biology)
In biology, a type is a particular specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally attached. In other words, a type is an example that serves to anchor or centralizes the defining features of that particular taxon. In older usage (pre-1900 in botany), a type was a taxon rather than a specimen. A taxon is a scientifically named grouping of organisms with other like organisms, a set that includes some organisms and excludes others, based on a detailed published description (for example a species description) and on the provision of type material, which is usually available to scientists for examination in a major museum research collection, or similar institution. Type specimen According to a precise set of rules laid down in the International Code of Zoological Nomenclature (ICZN) and the International Code of Nomenclature for algae, fungi, and plants (ICN), the scientific name of every taxon is almost a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pleurobranchidae
The Pleurobranchidae are a taxonomic family of sea slugs, marine gastropod molluscs in the clade Pleurobranchomorpha. Characteristics Species in the family Pleurobranchidae have a prominent mantle and an internal shell that becomes reduced or is lost completely in adults. Some adult species have been seen feeding on ascidians. Larval pleurobranchids can be planktotrophic (feeding on plankton), lecithotrophic (deriving nutrition from yolk), or direct developing. Like all Pleurobranchomorpha, they breathe through an external gill, located on the right side (contrary to nudibranchs who have it on the back), just after the genital organ. Many species produce secretions from their rich glandular mantle as a chemical defense against predators. Even the production of sulfuric acid has been reported. Taxonomy Until 2005, this family was placed in the suborder Notaspidea. However, in the taxonomy of Bouchet & Rocroi (2005), the family Pleurobranchidae was placed in the sup ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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