|
Lissocarcinus Orbicularis (17327821685)
''Lissocarcinus orbicularis'', common names sea cucumber crab, red-spotted white crab, and harlequin crab is a species of crab in the Family (biology), family Portunidae. This species gains one of its names from its close-knit relationship with Sea cucumber, holothuroids, the sea cucumbers. ''L. orbicularis'' should not be confused with ''Lissocarcinus laevis, L. laevis,'' a similar species of swimming crab, or ''Camposcia retusa'', both of which are also commonly referred to as the harlequin crab. ''L. orbicularis'' displays numerous morphological and social adaptations for feeding and has a large distribution throughout the Indo-West Pacific. Morphology ''Lissocarcinus orbicularis'' grows to about 4 cm (1.6 in), and has a smooth, sub-circular carapace with a curved frontal margin that lacks defined teeth or a medial notch. ''L. orbicularis'' can be distinguished from ''L. holothuricola'' due to its generally smoother carapace. The carapace is broader than it is long, ranging ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Dwight Dana
James Dwight Dana FRS FRSE (February 12, 1813 – April 14, 1895) was an American geologist, mineralogist, volcanologist, and zoologist. He made pioneering studies of mountain-building, volcanic activity, and the origin and structure of continents and oceans around the world. His zoological author abbreviation is Dana. Early life and career Dana was born February 12, 1813, in Utica, New York. His father was merchant James Dana (1780–1860) and his mother was Harriet Dwight (1792–1870). Through his mother he was related to the Dwight New England family of missionaries and educators including uncle Harrison Gray Otis Dwight and first cousin Henry Otis Dwight. He showed an early interest in science, which had been fostered by Fay Edgerton, a teacher in the Utica high school, and in 1830 he entered Yale College in order to study under Benjamin Silliman the elder. Graduating in 1833, for the next two years he was teacher of mathematics to midshipmen in the Navy, and sailed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 () 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 someti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kleptoparasitism
Kleptoparasitism (etymologically, parasitism by theft) is a form of feeding in which one animal deliberately takes food from another. The strategy is evolutionarily stable when stealing is less costly than direct feeding, which can mean when food is scarce or when victims are abundant. Many kleptoparasites are arthropods, especially bees and wasps, but including some true flies, dung beetles, bugs, and spiders. Cuckoo bees are specialized kleptoparasites which lay their eggs either on the pollen masses made by other bees, or on the insect hosts of parasitoid wasps. They are an instance of Emery's rule, which states that insect social parasites tend to be closely related to their hosts. The behavior occurs, too, in vertebrates including birds such as skuas, which persistently chase other seabirds until they disgorge their food, and carnivorous mammals such as spotted hyenas and lions. Other species opportunistically indulge in kleptoparasitism. Strategy Kleptoparasitism is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parasitism
Parasitism is a Symbiosis, close relationship between species, where one organism, the parasite, lives on or inside another organism, the Host (biology), host, causing it some harm, and is Adaptation, adapted structurally to this way of life. The entomologist E. O. Wilson has characterised parasites as "predators that eat prey in units of less than one". Parasites include single-celled protozoans such as the agents of malaria, sleeping sickness, and amoebic dysentery; animals such as hookworms, lice, mosquitoes, and vampire bats; fungi such as Armillaria mellea, honey fungus and the agents of ringworm; and plants such as mistletoe, dodder, and the Orobanchaceae, broomrapes. There are six major parasitic Behavioral ecology#Evolutionarily stable strategy, strategies of exploitation of animal hosts, namely parasitic castration, directly transmitted parasitism (by contact), wikt:trophic, trophicallytransmitted parasitism (by being eaten), Disease vector, vector-transmitted paras ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastric Mill
The gizzard, also referred to as the ventriculus, gastric mill, and gigerium, is an organ found in the digestive tract of some animals, including archosaurs (pterosaurs, crocodiles, alligators, dinosaurs, birds), earthworms, some gastropods, some fish, and some crustaceans. This specialized stomach constructed of thick muscular walls is used for grinding up food, often aided by particles of stone or grit. In certain insects and molluscs, the gizzard features chitinous plates or teeth. Etymology The word ''gizzard'' comes from the Middle English ''giser'', which derives from a similar word in Old French ''gésier'', which itself evolved from the Latin ''gigeria'', meaning giblets. Structure In birds Birds swallow food and store it in their crop if necessary. Then the food passes into their glandular stomach, also called the proventriculus, which is also sometimes referred to as the true stomach. This is the secretory part of the stomach. Then the food passes into the gizzard ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echinoderm
An echinoderm () is any member of the phylum Echinodermata (). The adults are recognisable by their (usually five-point) radial symmetry, and include starfish, brittle stars, sea urchins, sand dollars, and sea cucumbers, as well as the sea lilies or "stone lilies". Adult echinoderms are found on the sea bed at every ocean depth, from the intertidal zone to the abyssal zone. The phylum contains about 7,000 living species, making it the second-largest grouping of deuterostomes, after the chordates. Echinoderms are the largest entirely marine phylum. The first definitive echinoderms appeared near the start of the Cambrian. The echinoderms are important both ecologically and geologically. Ecologically, there are few other groupings so abundant in the biotic desert of the deep sea, as well as shallower oceans. Most echinoderms are able to reproduce asexually and regenerate tissue, organs, and limbs; in some cases, they can undergo complete regeneration from a single limb. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lissocarcinus Cf
''Lissocarcinus'' is a genus of crabs containing the following nine species : *''Lissocarcinus arkati'' Kemp, 1923 *''Lissocarcinus boholensis'' Semper, 1880 *''Lissocarcinus echinodisci'' Derijard, 1968 *''Lissocarcinus elegans'' Boone, 1934 *''Lissocarcinus holothuricola'' (Streets, 1877) *''Lissocarcinus laevis'' Miers, 1886 *''Lissocarcinus orbicularis'' Dana, 1852 *''Lissocarcinus ornatus'' Chopra, 1931 *''Lissocarcinus polybioides ''Lissocarcinus'' is a genus of crabs containing the following nine species : *''Lissocarcinus arkati'' Kemp, 1923 *''Lissocarcinus boholensis'' Semper, 1880 *''Lissocarcinus echinodisci'' Derijard, 1968 *''Lissocarcinus elegans'' Boone, 193 ...'' Adams & White, 1849 References Portunoidea {{Crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lissocarcinus Orbicularis
''Lissocarcinus orbicularis'', common names sea cucumber crab, red-spotted white crab, and harlequin crab is a species of crab in the family Portunidae. This species gains one of its names from its close-knit relationship with holothuroids, the sea cucumbers. ''L. orbicularis'' should not be confused with '' L. laevis,'' a similar species of swimming crab, or ''Camposcia retusa'', both of which are also commonly referred to as the harlequin crab. ''L. orbicularis'' displays numerous morphological and social adaptations for feeding and has a large distribution throughout the Indo-West Pacific. Morphology ''Lissocarcinus orbicularis'' grows to about 4 cm (1.6 in), and has a smooth, sub-circular carapace with a curved frontal margin that lacks defined teeth or a medial notch. ''L. orbicularis'' can be distinguished from ''L. holothuricola'' due to its generally smoother carapace. The carapace is broader than it is long, ranging from 0.3 to 1.4 cm in length, and has a highly med ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holothuria
''Holothuria'' is the type genus of the marine animal family Holothuriidae, part of the class Holothuroidea, commonly known as sea cucumbers. Members of the genus are found in coastal waters in tropical and temperate regions. They are soft bodied, limbless invertebrates that dwell on the ocean floor and are usually detritivore. They resemble a cucumber in form. The genus contains some species that are harvested and sold as food. Species The following species are recognised in the genus ''Holothuria'': * Subgenus ''Acanthotrapeza'' ** '' Holothuria coluber'' ** ''Holothuria kubaryi'' ** ''Holothuria pyxis'' ** ''Holothuria tripilata'' * Subgenus ''Cystipus'' ** ''Holothuria casoae'' ** ''Holothuria cubana'' ** ''Holothuria dura'' ** ''Holothuria hartmeyeri'' ** ''Holothuria inhabilis'' ** ''Holothuria jousseaumei'' ** ''Holothuria mammosa'' ** ''Holothuria occidentalis'' ** ''Holothuria pseudofossor'' ** '' Holothuria rigida'' ** ''Holothuria sucosa'' ** ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bohadschia
''Bohadschia'' is a genus of sea cucumbers in the family Holothuriidae. Species The following species are recognised in the genus ''Bohadschia'': * ''Bohadschia argus'' Jaeger, 1833 * '' Bohadschia atra'' Massin, Rasolofonirina, Conand & Samyn, 1999 * '' Bohadschia cousteaui'' Cherbonnier, 1954 * '' Bohadschia koellikeri'' (Semper, 1868) * '' Bohadschia maculisparsa'' Cherbonnier & Féral, 1984 * '' Bohadschia marmorata'' Jaeger, 1833 * '' Bohadschia mitsioensis'' Cherbonnier, 1988 * '' Bohadschia ocellata'' Jaeger, 1833 * '' Bohadschia paradoxa'' (Selenka, 1867) * '' Bohadschia steinitzi'' Cherbonnier, 1963 * '' Bohadschia subrubra'' (Quoy & Gaimard, 1834) * '' Bohadschia vitiensis'' (Semper, 1868) Image:Bohadschia argus1.jpg, ''Bohadschia argus ''Bohadschia argus'', the leopard sea cucumber, is a species of marine invertebrate in the family Holothuriidae. It is the type species of the genus ''Bohadschia''; Jaeger, 1833. Description ''Bohadschia argus'' is sausage-shape ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thelenota
''Thelenota'' is a genus of sea cucumber in the family Stichopodidae. Description and characteristics They are massive sea cucumbers, more or less rectangular in cross-section. The oral face (called ''trivium'') is flat, and covered with numerous aligned podia. The tegument is thick, and covered with thick papillae and other tubercles. The oral tentacles are peltate, helping to collect the sediment to ingest. Species * ''Thelenota ananas'' Jaeger, 1833 – Pineapple sea cucumber * '' Thelenota anax'' Clark, 1921 – Giant sea cucumber * '' Thelenota rubralineata'' Massin & Lane, 1991 – Red-lined sea cucumber File:Thelenota ananas at Umm Kararim.JPG, ''Thelenota ananas ''Thelenota ananas'', also known as pineapple sea cucumber, oloturia ananas, tripang, prickly skin cucumber, pointed teat sea cucumber, armoured sea cucumber, giant sea cucumber, sand fish or prickly redfish, is a species of sea cucumber found in ...'' File:Thelenota anax.jpg, '' Thelenota anax'' File:Thele ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kairomone
A kairomone (a coinage using the Greek καιρός ''opportune moment'', paralleling pheromone"kairomone, n.". OED Online. September 2012. Oxford University Press. http://www.oed.com/view/Entry/241005?redirectedFrom=kairomone (accessed 3 October 2012).) is a semiochemical, emitted by an organism, which mediates interspecific interactions in a way that benefits an individual of another species which receives it and harms the emitter. This "eavesdropping" is often disadvantageous to the producer (though other benefits of producing the substance may outweigh this cost, hence its persistence over evolutionary time). The kairomone improves the fitness of the recipient and in this respect differs from an allomone (which is the opposite: it benefits the producer and harms the receiver) and a synomone (which benefits both parties). The term is mostly used in the field of entomology (the study of insects). Two main ecological cues are provided by kairomones; they generally either indica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Lissocarcinus Orbicularis")