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Polyorchis
''Polyorchis'', or bell jellies, is a genus of hydrozoans in the family Corynidae. They are transparent with red coloration in their internal organs and eye spots around the rim of their bell. The red pigmentation helps them camouflage. They are often found in harbors, marinas, and other calm waters close to shore. They feed on plankton and benthic crustaceans and are found near the sea floor. The bells can reach about 2.25 inches (5 cm). '' P. pencillatus'' is nicknamed "red-eyed jellyfish". At the base of the tentacles are several eyes, called ocelli, which contain light-sensing cells and red pigment A pigment is a colored material that is completely or nearly insoluble in water. In contrast, dyes are typically soluble, at least at some stage in their use. Generally dyes are often organic compounds whereas pigments are often inorganic compo ...s. Anna Klompen ''et al.''Peering Into the Inner Workings of Evolution With Jellyfish Eyes On: SciTechDaily, April 8, 2022 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyorchis Haplus
''Polyorchis'', or bell jellies, is a genus of hydrozoans in the family Corynidae. They are transparent with red coloration in their internal organs and eye spots around the rim of their bell. The red pigmentation helps them camouflage. They are often found in harbors, marinas, and other calm waters close to shore. They feed on plankton and benthic crustaceans and are found near the sea floor. The bells can reach about 2.25 inches (5 cm). '' P. pencillatus'' is nicknamed "red-eyed jellyfish". At the base of the tentacles are several eyes, called ocelli, which contain light-sensing cells and red pigment A pigment is a colored material that is completely or nearly insoluble in water. In contrast, dyes are typically soluble, at least at some stage in their use. Generally dyes are often organic compounds whereas pigments are often inorganic compo ...s. Anna Klompen ''et al.''Peering Into the Inner Workings of Evolution With Jellyfish Eyes On: SciTechDaily, April 8, 2022 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyorchis Karafutoensis
''Polyorchis'', or bell jellies, is a genus of hydrozoans in the family Corynidae. They are transparent with red coloration in their internal organs and eye spots around the rim of their bell. The red pigmentation helps them camouflage. They are often found in harbors, marinas, and other calm waters close to shore. They feed on plankton and benthic crustaceans and are found near the sea floor. The bells can reach about 2.25 inches (5 cm). '' P. pencillatus'' is nicknamed "red-eyed jellyfish". At the base of the tentacles are several eyes, called ocelli, which contain light-sensing cells and red pigment A pigment is a colored material that is completely or nearly insoluble in water. In contrast, dyes are typically soluble, at least at some stage in their use. Generally dyes are often organic compounds whereas pigments are often inorganic compo ...s. Anna Klompen ''et al.''Peering Into the Inner Workings of Evolution With Jellyfish Eyes On: SciTechDaily, April 8, 2022 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyorchis Penicillatus
''Polyorchis'', or bell jellies, is a genus of hydrozoans in the family Corynidae. They are transparent with red coloration in their internal organs and eye spots around the rim of their bell. The red pigmentation helps them camouflage. They are often found in harbors, marinas, and other calm waters close to shore. They feed on plankton and benthic crustaceans and are found near the sea floor. The bells can reach about 2.25 inches (5 cm). '' P. pencillatus'' is nicknamed "red-eyed jellyfish". At the base of the tentacles are several eyes, called ocelli, which contain light-sensing cells and red pigment A pigment is a colored material that is completely or nearly insoluble in water. In contrast, dyes are typically soluble, at least at some stage in their use. Generally dyes are often organic compounds whereas pigments are often inorganic compo ...s. Anna Klompen ''et al.''Peering Into the Inner Workings of Evolution With Jellyfish Eyes On: SciTechDaily, April 8, 2022 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corynidae
Corynidae is a family of hydrozoans in the order Anthomedusae. Derivation of family name The family name ''Corynidae'' is derived from the Greek word κορυνε ( = ''korune'' ) meaning "club" ( in the sense of "cudgel" or "bludgeon" ). Genera The following genera are included in the family: *'' Bicorona'' Millard, 1966 *'' Caltsacoryne'' Toshino, Hamatsu & Uchida, 2021 *'' Cladosarsia'' Bouillon, 1978 *'' Codonium'' Haeckel, 1879 *'' Coryne'' Gaertner, 1774 *'' Dicyclocoryne'' Annandale, 1915 *'' Dipurenella'' Huang, Xu & Guo, 2011 *'' Nannocoryne'' Bouillon & Grohmann, 1994 *'' Polyorchis'' A. Agassiz, 1862 *''Sarsia ''Sarsia'' is a genus of hydrozoan in the family Corynidae. Species * ''Sarsia angulata'' (Mayer, 1900) * ''Sarsia apicula'' (Murbach & Shearer, 1902) * ''Sarsia bella'' Brinckmann-Voss, 2000 * ''Sarsia brachygaster'' Grönberg, 1898 * ''Sarsia ...'' Lesson, 1843 *'' Scrippsia'' Torrey, 1909 *'' Slabberia'' Forbes, 1846 *'' Spirocodon'' Haeckel, 1880 *'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrozoa
Hydrozoa (hydrozoans; ) are a taxonomic class of individually very small, predatory animals, some solitary and some colonial, most of which inhabit saline water. The colonies of the colonial species can be large, and in some cases the specialized individual animals cannot survive outside the colony. A few genera within this class live in freshwater habitats. Hydrozoans are related to jellyfish and corals and belong to the phylum Cnidaria. Some examples of hydrozoans are the freshwater jelly (''Craspedacusta sowerbyi''), freshwater polyps ('' Hydra''), ''Obelia'', Portuguese man o' war (''Physalia physalis''), chondrophores (Porpitidae), "air fern" (''Sertularia argentea''), and pink-hearted hydroids (''Tubularia''). Anatomy Most hydrozoan species include both a polyp (zoology), polypoid and a medusa (biology), medusoid stage in their lifecycles, although a number of them have only one or the other. For example, ''Hydra'' has no medusoid stage, while ''Liriope tetraphylla, Lir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ocelli
A simple eye (sometimes called a pigment pit) refers to a form of eye or an optical arrangement composed of a single lens and without an elaborate retina such as occurs in most vertebrates. In this sense "simple eye" is distinct from a multi-lensed "compound eye", and is not necessarily at all simple in the usual sense of the word. The structure of an animal's eye is determined by the environment in which it lives, and the behavioural tasks it must fulfill to survive. Arthropods differ widely in the habitats in which they live, as well as their visual requirements for finding food or conspecifics, and avoiding predators. Consequently, an enormous variety of eye types are found in arthropods. They possess a wide variety of novel solutions to overcome visual problems or limitations. Use of the term ''simple eye'' is flexible, and must be interpreted in proper context; for example, the eyes of humans and of other large animals such as most cephalopods, are ''camera eyes'' and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pigment
A pigment is a colored material that is completely or nearly insoluble in water. In contrast, dyes are typically soluble, at least at some stage in their use. Generally dyes are often organic compounds whereas pigments are often inorganic compounds. Pigments of prehistoric and historic value include ochre, charcoal, and lapis lazuli. Economic impact In 2006, around 7.4 million tons of inorganic, organic, and special pigments were marketed worldwide. Estimated at around US$14.86 billion in 2018 and will rise at over 4.9% CAGR from 2019 to 2026. The global demand for pigments was roughly US$20.5 billion in 2009. According to an April 2018 report by ''Bloomberg Businessweek'', the estimated value of the pigment industry globally is $30 billion. The value of titanium dioxide – used to enhance the white brightness of many products – was placed at $13.2 billion per year, while the color Ferrari red is valued at $300 million each year. Physical principles ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
