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Eupentacta Exigua
''Eupentacta'' is a genus of sea cucumbers found in coastal waters in tropical and temperate regions. Characteristics Like other members of the family Sclerodactylidae, members of ''Eupentacta'' are characterised by the complex ring of ossicles they have near the anterior end. These may or may not take the form of a short tube, but are quite unlike the long tubes found in the phyllophorids. The tentacles number ten to twenty. Digital Nature Archive. Retrieved 2012-02-12. Species *'' Eupentacta exigua'' (Ludwig, 1875) *'' Eupentacta fraudatrix'' (D'yakonov & Baranova in D'yakonov ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eupentacta Quinquesemita
''Eupentacta quinquesemita'' is a species of sea cucumber, a marine invertebrate with an elongated body, a leathery skin and tentacles surrounding the mouth. It is commonly known as the stiff-footed sea cucumber or white sea cucumber, and occurs on rocky coasts in the northeastern Pacific Ocean. Description ''Eupentacta quinquesemita'' can grow to a length of up to . The tube feet are arranged in four longitudinal rows; they are non-retractable and give the animal a spiny appearance. The skin between the tube feet is smooth, but both body wall and tube feet contain calcareous ossicles that make them stiff. The mouth is surrounded by ten branched feeding tentacles, the two lowest ones being smaller than the rest. The general body colour is white, the tentacles (often the only parts of the animal that are visible) being creamy-white, often with yellowish or pinkish bases. Bits of shell or other fragments often adhere to the tube feet. Distribution and habitat ''E. quinquesemita'' i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holothuroidea
Sea cucumbers are echinoderms from the class Holothuroidea (). They are marine animals with a leathery skin and an elongated body containing a single, branched gonad. Sea cucumbers are found on the sea floor worldwide. The number of holothurian () species worldwide is about 1,717, with the greatest number being in the Asia-Pacific region. Many of these are gathered for human consumption and some species are cultivated in aquaculture systems. The harvested product is variously referred to as '' trepang'', ''namako'', ''bêche-de-mer'', or ''balate''. Sea cucumbers serve a useful role in the marine ecosystem as they help recycle nutrients, breaking down detritus and other organic matter, after which bacteria can continue the decomposition process. Like all echinoderms, sea cucumbers have an endoskeleton just below the skin, calcified structures that are usually reduced to isolated microscopic ossicles (or sclerietes) joined by connective tissue. In some species these can sometim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ossicle (echinoderm)
Ossicles are small calcareous elements embedded in the dermis of the body wall of echinoderms. They form part of the endoskeleton and provide rigidity and protection. They are found in different forms and arrangements in sea urchins, starfish, brittle stars, sea cucumbers, and crinoids. The ossicles and spines (which are specialised sharp ossicles) are the only parts of the animal likely to be fossilized after an echinoderm dies. Formation Ossicles are created intracellularly by specialised secretory cells known as sclerocytes in the dermis of the body wall of echinoderms. Each ossicle is composed of microcrystals of calcite arranged in a three-dimensional lattice known as a stereom. Under polarized light the ossicle behaves as if it were a single crystal because the axes of all the crystals are parallel. The space between the crystals is known as the stroma and allows entry to sclerocytes for enlargement and repair. The honeycomb structure is light but tough and collage ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phyllophoridae
Phyllophoridae is a family of sea cucumbers, marine invertebrates with elongated bodies, leathery skins and feeding tentacles. Members of the family are characterised by a complex ring of calcareous ossicles arranged in a tube, making a mosaic pattern. The tentacles number ten to twenty-five. Some members have spindle-shaped bodies whilst others are buried in the substrate and adopt a U-shaped form. Genera The following genera 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 nomenclat ... are recognised in the family Phyllophoridae: *'' Allothyone'' Panning, 1949 *'' Anthochirus'' Chang, 1948 *'' Cladolella'' Heding & Panning, 1954 *'' Ekmanothyone'' Massin, 1993 *'' Hemithyone'' Pawson, 1963 *'' Lipotrapeza'' Clark, 1938 *'' Massinium'' Samyn & Thandar, 2003 *'' Neopentadactyla'' Deichmann ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eupentacta Exigua
''Eupentacta'' is a genus of sea cucumbers found in coastal waters in tropical and temperate regions. Characteristics Like other members of the family Sclerodactylidae, members of ''Eupentacta'' are characterised by the complex ring of ossicles they have near the anterior end. These may or may not take the form of a short tube, but are quite unlike the long tubes found in the phyllophorids. The tentacles number ten to twenty. Digital Nature Archive. Retrieved 2012-02-12. Species *'' Eupentacta exigua'' (Ludwig, 1875) *'' Eupentacta fraudatrix'' (D'yakonov & Baranova in D'yakonov ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eupentacta Fraudatrix
''Eupentacta'' is a genus of sea cucumbers found in coastal waters in tropical and temperate regions. Characteristics Like other members of the family Sclerodactylidae, members of ''Eupentacta'' are characterised by the complex ring of ossicles they have near the anterior end. These may or may not take the form of a short tube, but are quite unlike the long tubes found in the phyllophorids. The tentacles number ten to twenty. Digital Nature Archive. Retrieved 2012-02-12. Species *'''' (Ludwig, 1875) *'' Eupentacta fraudatrix'' ( ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eupentacta Pseudoquinquesemita
''Eupentacta'' is a genus of sea cucumbers found in coastal waters in tropical and temperate regions. Characteristics Like other members of the family Sclerodactylidae, members of ''Eupentacta'' are characterised by the complex ring of ossicles they have near the anterior end. These may or may not take the form of a short tube, but are quite unlike the long tubes found in the phyllophorids. The tentacles number ten to twenty. Digital Nature Archive. Retrieved 2012-02-12. Species *'' Eupentacta exigua'' (Ludwig, 1875) *'' Eupentacta fraudatrix'' (D'yakonov & Baranova in D'yakonov ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sclerodactylidae
Sclerodactylidae is a family of sea cucumbers Sea cucumbers are echinoderms from the class Holothuroidea (). They are marine animals with a leathery skin and an elongated body containing a single, branched gonad. Sea cucumbers are found on the sea floor worldwide. The number of holothurian ..., marine invertebrates with elongated bodies, leathery skins and tentacles. Members of the family are characterised by the complex ring of ossicles they have near the anterior end. These may or may not take the form of a short tube but are quite unlike the long tubes found in the phyllophorids. The tentacles number ten to twenty. Digital Nature Archive. Retrieved 2012-02-12. Genera The World Register of Marine Species recognizes the following genera: * genus ''[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
