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Hyperiid
The Hyperiidea are a suborder of amphipods, small aquatic crustaceans. Unlike the other suborders of Amphipoda, hyperiids are exclusively marine and do not occur in fresh water. Hyperiids are distinguished by their large eyes and planktonic habitat. Most species of hyperiids are parasites or predators of salps and jellyfish in the plankton, although ''Themisto gaudichaudii'' and a few relatives are free-swimming predators of copepods and other small planktonic animals. Gallery Taxonomy According to Vinogradov ''et al.'' in 1996, 233 species of Hyperiidea are known. Some controversy exists as to the number of families in the Hyperiidea, being given as between 20 and 23 depending on whether groups like the Thaumatopsidae are considered distinct or not. The taxonomy of Hyperiidea currently accepted by the '' World Register of Marine Species'' is as follows: ;Infraorder Physocephalata Bowman & Gruner, 1973 * Parvorder Physocephalatidira Bowman & Gruner, 1973 ** Superfamily Phr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cystisoma
''Cystisoma '' is a genus of amphipod. It is the only member of the family Cystisomatidae within the Hyperiidea. The genus is noted for its nearly completely transparent body, adapted for life in low light waters. Description Gallery ''Cystisoma'' are characterized by unpigmented, transparent bodies which render them essentially invisible in water unless under precisely angled lighting. Only their eyes are pigmented. There is only a single pair of eyes which are large and directed upwards, being spread into a thin sheet on the upper surface of the head. This is likely an adaption of life in the ocean depths, where the only major light source is from above. Marine biologists at Duke University and the Smithsonian analyzed the crustacean's shell and discovered that it was covered in microscopic spheres that significantly reduce reflected light, thus giving the organism an antireflective coating. The spheres are believed to be bacteria due to their morphology and method ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phronima Sedentaria
''Phronima sedentaria'' is a species of amphipod crustaceans found in oceans at a depth of up to . They are large in size relative to other members of the family Phronimidae. Individuals may be found inside barrel-like homes, created most commonly from the tunics of select species of tunicate, where they rear their young. ''P. sedentaria'' is known to employ multiple feeding strategies and other interesting behaviors, including daily vertical migration. The species is also known by the more common names “pram bug” and “barrel shrimp.” Description ''Phronima sedentaria'' is the largest and most abundant species in the family Phronimidae. Sexual dimorphism is reflected between male and female members in the more extended and prominent antennae of the males relative to the short, reduced ones of females. More obviously, the size discrepancy between males and females distinguishes them further. Females measure up to 42 mm (1.7 in) long, while males are only 15 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cystisomatidae
''Cystisoma '' is a genus of amphipod. It is the only member of the family Cystisomatidae within the Hyperiidea. The genus is noted for its nearly completely transparent body, adapted for life in low light waters. Description Gallery ''Cystisoma'' are characterized by unpigmented, transparent bodies which render them essentially invisible in water unless under precisely angled lighting. Only their eyes are pigmented. There is only a single pair of eyes which are large and directed upwards, being spread into a thin sheet on the upper surface of the head. This is likely an adaption of life in the ocean depths, where the only major light source is from above. Marine biologists at Duke University and the Smithsonian analyzed the crustacean's shell and discovered that it was covered in microscopic spheres that significantly reduce reflected light, thus giving the organism an antireflective coating. The spheres are believed to be bacteria due to their morphology and method ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thaumatopsidae
''Cystisoma '' is a genus of amphipod. It is the only member of the family Cystisomatidae within the Hyperiidea. The genus is noted for its nearly completely transparent body, adapted for life in low light waters. Description Gallery ''Cystisoma'' are characterized by unpigmented, transparent bodies which render them essentially invisible in water unless under precisely angled lighting. Only their eyes are pigmented. There is only a single pair of eyes which are large and directed upwards, being spread into a thin sheet on the upper surface of the head. This is likely an adaption of life in the ocean depths, where the only major light source is from above. Marine biologists at Duke University and the Smithsonian analyzed the crustacean's shell and discovered that it was covered in microscopic spheres that significantly reduce reflected light, thus giving the organism an antireflective coating. The spheres are believed to be bacteria due to their morphology and method ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Themisto Gaudichaudii
''Themisto gaudichaudii'' is an amphipod crustacean of the suborder Hyperiidea. Relatives The 260 species of hyperiid amphipods are large-eyed and planktonic amphipods, whereas gammarid amphipods have smaller eyes and tend to live on the sea floor. The handful of species of the genus ''Themisto'' are the most abundant of all amphipods. Unlike other hyperiids, which parasitise gelatinous animals such as salps and jellyfish, ''Themisto'' swims free in the plankton, and is much sleeker and more streamlined than other amphipods. ''Themisto'' often forms dense swarms, similar to krill swarms. ''Themisto gaudichaudii'' is a voracious predator of anything smaller than itself, and occasionally of animals its own size or larger. In most places, the most abundant members of the plankton community are copepods, which make up the bulk of the diet of ''T. gaudichaudii'', but it also eats fish larvae, chaetognaths, pteropods, juvenile krill, and anything else it comes across. The long lim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphipod
Amphipoda is an order of malacostracan crustaceans with no carapace and generally with laterally compressed bodies. Amphipods range in size from and are mostly detritivores or scavengers. There are more than 9,900 amphipod species so far described. They are mostly marine animals, but are found in almost all aquatic environments. Some 1,900 species live in fresh water, and the order also includes the terrestrial sandhoppers such as ''Talitrus saltator''. Etymology and names The name ''Amphipoda'' comes, via New Latin ', from the Greek roots 'on both/all sides' and 'foot'. This contrasts with the related Isopoda, which have a single kind of thoracic leg. Particularly among anglers, amphipods are known as ''freshwater shrimp'', ''scuds'', or ''sideswimmers''. Description Anatomy The body of an amphipod is divided into 13 segments, which can be grouped into a head, a thorax and an abdomen. The head is fused to the thorax, and bears two pairs of antennae and one pair of se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bougisidae
''Bougisia'' is a genus of plankton in the sub-order Hyperiidea – a type of so-called "hyperid" amphipoda. The genus ''Bougisia'' is the only subordinate taxon in the monotypic family Bougisidae. The genus ''Bougisia'' is also monotypic, being represented by the single species, ''Bougisia ornata''. This species lives as plankton in tropical and sub-tropical salt water. Hyperiidea species normally have a physique that differs from other types of amphipod. Taxonomy The taxonomy of the genus ''Bougisia'' is complicated, has been revised on a number of occasions, and different group affiliation is possible. Prior to 2004, the genera '' Iulopis'' and ''Bougisia'' were part of the family Hyperiidae The Hyperiidae are a family of amphipods, containing these genera: *'' Euthemisto'' Bovallius, 1887 *'' Hyperia'' Latreille ''in'' Desmarest, 1823 *'' Hyperiella'' Bovallius, 1887 *'' Hyperoche'' Bovallius, 1887 *'' Laxohyperia'' M. Vinogradov & ..., but Zeidler suggested creating tw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Register Of Marine Species
The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive list of names of marine organisms. Content The content of the registry is edited and maintained by scientific specialists on each group of organism. These taxonomists control the quality of the information, which is gathered from the primary scientific literature as well as from some external regional and taxon-specific databases. WoRMS maintains valid names of all marine organisms, but also provides information on synonyms and invalid names. It is an ongoing task to maintain the registry, since new species are constantly being discovered and described by scientists; in addition, the nomenclature and taxonomy of existing species is often corrected or changed as new research is constantly being published. Subsets of WoRMS content are made available, and can have separate badging and their own home/launch pages, as "subregisters", such as the ''World List of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physocephalatidira
Physocephalatidira is a parvorder of plankton in the sub-order Hyperiidea. It is the only taxon within the infraorder Physocephalata, making its parent a monotypic taxon In biology, a monotypic taxon is a taxonomic group ( taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unisp .... References Amphipoda Animals described in 1973 {{amphipod-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phronimoidea
Phronimoidea is a superfamily of plankton in the sub-order Hyperiidea. Families * Bougisidae Zeidler, 2004 *Cystisomatidae Willemöes-Suhm, 1875 *Dairellidae Bovallius, 1887 *Hyperiidae Dana, 1852 * Iulopididae Zeidler, 2004 * Lestrigonidae Zeidler, 2004 *Phronimidae The Phronimidae are a family of amphipod crustacean Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods ... Rafinesque, 1815 * Phrosinidae Dana, 1852 References Amphipoda Animals described in 1815 Arthropod superfamilies {{amphipod-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyperia (crustacean)
''Hyperia'' is a genus of amphipods in the family Hyperiidae. It contains the following species: *'' Hyperia bowmani'' M. Vinogradov, 1976 *'' Hyperia crassa'' Bowman, 1973 *'' Hyperia curticephala'' M. Vinogradov & Semenova, 1985 *'' Hyperia fabrei'' H. Milne Edwards, 1830 *'' Hyperia galba'' Montagu, 1815 *'' Hyperia gaudichaudii'' H. Milne Edwards, 1840 *'' Hyperia leptura'' Bowman, 1973 *''Hyperia macrocephala'' Dana, 1853 *''Hyperia medusarum Hyperia may stand for: * ''Hyperia'' (crustacean), a genus of the order Amphipoda * The ancient Greek name for the island of Amorgos * In Greek mythology, Hyperia was the daughter of the river god Inachus In Greek mythology, Inachus, Inachos o ...'' Müller, 1776 *'' Hyperia spinigera'' Bovallius, 1889 References Hyperiidea Taxa named by Anselme Gaëtan Desmarest Malacostraca genera {{amphipod-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
