|
Oreosomatidae
Oreosomatidae, the oreos, are a family of marine fish. Most species are found in the Southern Hemisphere, inhabiting continental slopes down to about deep. Most of then are 43 cm at most, with the largest species reaching a length of 60 cm. Though they are small, they often have incredibly elongated lifespans, probable result of living in the deep sea (a trait shared with other unrelated fishes like the orange roughy) with the warty oreo being able to live up to 210 years, which puts it at one of the longest living vertebrates on Earth. They borrow their name from the Greek ''oreos (''mountain) and ''somas'' (backs) for the shape of their backs. They are very flattened vertically-laterally, with 5 to 8 rays in their dorsal fin A dorsal fin is a fin located on the back of most marine and freshwater vertebrates within various taxa of the animal kingdom. Many species of animals possessing dorsal fins are not particularly closely related to each other, though through ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oreosomatidae
Oreosomatidae, the oreos, are a family of marine fish. Most species are found in the Southern Hemisphere, inhabiting continental slopes down to about deep. Most of then are 43 cm at most, with the largest species reaching a length of 60 cm. Though they are small, they often have incredibly elongated lifespans, probable result of living in the deep sea (a trait shared with other unrelated fishes like the orange roughy) with the warty oreo being able to live up to 210 years, which puts it at one of the longest living vertebrates on Earth. They borrow their name from the Greek ''oreos (''mountain) and ''somas'' (backs) for the shape of their backs. They are very flattened vertically-laterally, with 5 to 8 rays in their dorsal fin A dorsal fin is a fin located on the back of most marine and freshwater vertebrates within various taxa of the animal kingdom. Many species of animals possessing dorsal fins are not particularly closely related to each other, though through ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neocyttus Helgae
The false boarfish (''Neocyttus helgae'') is a species of fish in the family Oreosomatidae (oreos). Description The false boarfish is dark grey in colour, with a maximum length of . It has 6–7 dorsal spines, 34–35 dorsal soft rays, 3–4 anal spines and 31–32 anal soft rays. It is diamond-shaped, with a protruding small mouth and large spiny rays present at the anterior edges of the fins. Habitat ''Neocyttus helgae'' is bathypelagic, living at depths of in the North Atlantic Ocean, being found off Madeira and Ireland and in the Cantabrian Sea. Behaviour The false boarfish feeds off zooplankton and raises its dorsal spine as a territorial display. It feeds near to ''Paragorgia ''Paragorgia'' is a genus of soft coral in the family Paragorgiidae Paragorgiidae is a family of corals, a member of the phylum Cnidaria. Genera Genera Genus ( plural genera ) is a taxonomic rank used in the biological classification of ...'' coral. References Oreosomatidae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oreosoma
''Oreosoma atlanticum'', also known as the ox-eyed oreo, is a species of oreo found in oceanic deep waters at depths of from . This species grows to a length of TL. This species is the only known member of its genus. Although adults are more similar in shape to other oreos Oreo () (stylized as OREO) is a brand of sandwich cookie consisting of two biscuits or cookie pieces with a sweet creme filling. It was introduced by Nabisco on March 6, 1912, and through a series of corporate acquisitions, mergers and splits ..., the juveniles have a weird plating/armor in their skin, which is spiked and probably makes them harder to eat for any hostile creature. Adults lack that plating, and, as other oreos, they have a protractile mouth and very large eyes, with small scales. References * * Oreosomatidae Fish described in 1829 Taxa named by Georges Cuvier {{Zeiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allocyttus
''Allocyttus'' is a genus of oreo (fish), oreos. Species There are currently four recognized species in this genus: * ''Allocyttus folletti'' George S. Myers, G. S. Myers, 1960 (Oxeye oreo) * ''Allocyttus guineensis'' Ivan Andreevich Trunov, Trunov & Yefim Izrailevich Kukuev, Kukuev, 1982 (Guinea oreo) * ''Allocyttus niger'' Gavin Digby James, G. D. James, Tadashi Inada, Inada & Izumi Nakamura, I. Nakamura, 1988 (Black oreo) * ''Allocyttus verrucosus'' (John Dow Fisher Gilchrist, Gilchrist, 1906) (Warty dory) References Oreosomatidae Ray-finned fish genera Taxa named by Allan Riverstone McCulloch {{Zeiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neocyttus
''Neocyttus'' is a genus of oreos. Species There are currently four recognized species in this genus: * '' Neocyttus acanthorhynchus'' Regan, 1908 * ''Neocyttus helgae'' (Holt & Byrne, 1908) (False boarfish) * '' Neocyttus psilorhynchus'' Yearsley & Last A last is a mechanical form shaped like a human foot. It is used by shoemakers and cordwainers in the manufacture and repair of shoes. Lasts typically come in pairs and have been made from various materials, including hardwoods, cast iron, and ..., 1998 (Rough oreodory) * '' Neocyttus rhomboidalis'' Gilchrist, 1906 (Spiky oreo) References Oreosomatidae Ray-finned fish genera {{Zeiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudocyttus
''Pseudocyttus maculatus'', the smooth oreo or smooth dory, is an oreo, the only species in the genus 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 nom ... ''Pseudocyttus''. It is found in all southern oceans at depths of between . Its length is up to . References "Pseudocyttus maculatus" IUCN Red List of Threatened Species 2010 * * Tony Ayling & Geoffrey Cox, ''Collins Guide to the Sea Fishes of New Zealand'', (William Collins Publishers Ltd., Auckland, New Zealand 1982) Oreosomatidae Monotypic ray-finned fish genera Fish described in 1906 {{Zeiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Warty Oreo
The warty oreo (''Allocyttus verrucosus'') is an oreo found in all southern oceans at depths of between 300 and 1,600 m. Its length is up to 42 cm. The warty oreo resembles the spiky oreo. However, there are differences: the body, which has a shape much like a diamond, has a lower corner not as pointed, a dorsal which is not as tall as that of the spiky oreo, and there are spines along the warty oreo's anal fin. In addition, there are two rows of scales, which are relatively large and warty, bedecking the sides of the warty oreo between the fish's pelvic fin and its anal fin. The warty oreo has a dark gray colour and is black-finned. They have only 1 spine in their pelvic fins. They have large eyes, possibly to see easier in the darkness of their habitat. Warty oreos live in the waters of continental slopes, and they form in large schools over rough terrain. Young warty oreos are pelagic and reside in shallow waters of the oceans - less than a kilometer in depth. They ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pelvic Fin
Pelvic fins or ventral fins are paired fins located on the ventral surface of fish. The paired pelvic fins are homologous to the hindlimbs of tetrapods. Structure and function Structure In actinopterygians, the pelvic fin consists of two endochondrally-derived bony girdles attached to bony radials. Dermal fin rays (lepidotrichia) are positioned distally from the radials. There are three pairs of muscles each on the dorsal and ventral side of the pelvic fin girdle that abduct and adduct the fin from the body. Pelvic fin structures can be extremely specialized in actinopterygians. Gobiids and lumpsuckers modify their pelvic fins into a sucker disk that allow them to adhere to the substrate or climb structures, such as waterfalls. In priapiumfish, males have modified their pelvic structures into a spiny copulatory device that grasps the female during mating. File:Pelvic fin skeleton.png, Pelvic fin skeleton for ''Danio rerio'', zebrafish. File:Zuignap waarmee de zwartbekgrond ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cephalopod
A cephalopod is any member of the molluscan class Cephalopoda (Greek plural , ; "head-feet") such as a squid, octopus, cuttlefish, or nautilus. These exclusively marine animals are characterized by bilateral body symmetry, a prominent head, and a set of arms or tentacles (muscular hydrostats) modified from the primitive molluscan foot. Fishers sometimes call cephalopods "inkfish", referring to their common ability to squirt ink. The study of cephalopods is a branch of malacology known as teuthology. Cephalopods became dominant during the Ordovician period, represented by primitive nautiloids. The class now contains two, only distantly related, extant subclasses: Coleoidea, which includes octopuses, squid, and cuttlefish; and Nautiloidea, represented by ''Nautilus'' and ''Allonautilus''. In the Coleoidea, the molluscan shell has been internalized or is absent, whereas in the Nautiloidea, the external shell remains. About 800 living species of cephalopods have been ident ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphipoda
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 s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copepod
Copepods (; meaning "oar-feet") are a group of small crustaceans found in nearly every freshwater and saltwater habitat (ecology), habitat. Some species are planktonic (inhabiting sea waters), some are benthos, benthic (living on the ocean floor), a number of species have parasitic phases, and some continental species may live in limnoterrestrial habitats and other wet terrestrial places, such as swamps, under leaf fall in wet forests, bogs, springs, ephemeral ponds, and puddles, damp moss, or water-filled recesses (phytotelmata) of plants such as bromeliads and pitcher plants. Many live underground in marine and freshwater caves, sinkholes, or stream beds. Copepods are sometimes used as Ecological indicator, biodiversity indicators. As with other crustaceans, copepods have a larval form. For copepods, the egg hatches into a Crustacean larvae#Nauplius, nauplius form, with a head and a tail but no true thorax or abdomen. The larva molts several times until it resembles the adult an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orange Roughy
The orange roughy (''Hoplostethus atlanticus''), also known as the red roughy, slimehead and deep sea perch, is a relatively large deep-sea fish belonging to the slimehead family (Trachichthyidae). The UK Marine Conservation Society has categorized orange roughy as "vulnerable to exploitation". It is found in , deep (bathypelagic, ) waters of the Western Pacific Ocean, eastern Atlantic Ocean (from Iceland to Morocco; and from Walvis Bay, Namibia, to off Durban, South Africa), Indo-Pacific (off New Zealand and Australia), and in the eastern Pacific off Chile. The orange roughy is notable for its extraordinary lifespan, attaining over 200 years. It is important to commercial deep-trawl fisheries. The fish is a bright, brick-red color, fading to a yellowish-orange after death. Like other slimeheads, orange roughy is slow-growing and late to mature, resulting in a very low resilience, making them extremely susceptible to overfishing. Many stocks (especially those off New Zealand and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Cephalopod")
.gif "Click for more on -> Orange Roughy")