|
Sciades Couma
The Couma sea catfish (''Sciades couma''), also known as the Pemecou sea catfish, is a species of catfish in the family Ariidae. It was described by Achille Valenciennes in 1840, originally under the genus ''Bagrus''. It inhabits estuaries and rivers in Guyana, French Guiana, Suriname, Brazil, Trinidad and Tobago, and Venezuela.''Sciades couma'' at the IUCN redlist. It reaches a maximum of , more commonly reaching a TL of . It reaches a maximum weight of . Its maximum known life expectancy is 5 years. The couma sea catfish has an extensive diet, consisting predominantly of crabs inc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Achille Valenciennes
Achille Valenciennes (9 August 1794 – 13 April 1865) was a French zoologist. Valenciennes was born in Paris, and studied under Georges Cuvier. His study of parasitic worms in humans made an important contribution to the study of parasitology. He also carried out diverse systematic classifications, linking fossil and current species. He worked with Cuvier on the 22-volume "'' Histoire Naturelle des Poissons''" (Natural History of Fish) (1828–1848), carrying on alone after Cuvier died in 1832. In 1832, he succeeded Henri Marie Ducrotay de Blainville (1777–1850) as chair of ''Histoire naturelle des mollusques, des vers et des zoophytes'' at the Muséum national d'histoire naturelle. Early in his career, he was given the task of classifying animals described by Alexander von Humboldt (1769–1859) during his travels in the American tropics (1799 to 1803), and a lasting friendship was established between the two men. He is the binomial authority for many species of fish, such a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pachygrapsus Gracilis
''Pachygrapsus'' is a genus of small shore crabs. Recent genetic data suggest this genus to be possibly polyphyletic. It comprises the following species: *'' Pachygrapsus corrugatus'' ( von Martens, 1872) *''Pachygrapsus crassipes'' Randall, 1840 *'' Pachygrapsus fakaravensis'' Rathbun, 1907 *'' Pachygrapsus gracilis'' ( Saussure, 1858) *'' Pachygrapsus laevimanus'' Stimpson, 1858 *'' Pachygrapsus loveridgei'' Chace, 1966 *''Pachygrapsus marmoratus'' ( Fabricius, 1787) *''Pachygrapsus maurus'' (Lucas, 1846) *''Pachygrapsus minutus'' A. Milne-Edwards, 1873 *''Pachygrapsus planifrons'' De Man, 1888 *''Pachygrapsus plicatus'' ( H. Milne-Edwards, 1837) *''Pachygrapsus propinquus'' De Man, 1908 *''Pachygrapsus socius'' Stimpson, 1871 *''Pachygrapsus transversus ''Pachygrapsus'' is a genus of small shore crabs. Recent genetic data suggest this genus to be possibly polyphyletic. It comprises the following species: *'' Pachygrapsus corrugatus'' ( von Martens, 1872) *''Pachygr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastropods
The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. There are many thousands of species of sea snails and slugs, as well as freshwater snails, freshwater limpets, and land snails and slugs. The class Gastropoda contains a vast total of named species, second only to the insects in overall number. The fossil history of this class goes back to the Late Cambrian. , 721 families of gastropods are known, of which 245 are extinct and appear only in the fossil record, while 476 are currently extant with or without a fossil record. Gastropoda (previously known as univalves and sometimes spelled "Gasteropoda") are a major part of the phylum Mollusca, and are the most highly diversified class in the phylum, with 65,000 to 80,000 living snail and slug species. The anatomy, behavior, feeding, and reproduc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Larvae
Ichthyoplankton (from Greek: ἰχθύς, , "fish"; and πλαγκτός, , "drifter") are the eggs and larvae of fish. They are mostly found in the sunlit zone of the water column, less than 200 metres deep, which is sometimes called the epipelagic or photic zone. Ichthyoplankton are planktonic, meaning they cannot swim effectively under their own power, but must drift with the ocean currents. Fish eggs cannot swim at all, and are unambiguously planktonic. Early stage larvae swim poorly, but later stage larvae swim better and cease to be planktonic as they grow into juveniles. Fish larvae are part of the zooplankton that eat smaller plankton, while fish eggs carry their own food supply. Both eggs and larvae are themselves eaten by larger animals. Fish can produce high numbers of eggs which are often released into the open water column. Fish eggs typically have a diameter of about . The newly hatched young of oviparous fish are called larvae. They are usually poorly formed, c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypostomus
''Hypostomus'' is a genus of catfish in the family Loricariidae. They are native to tropical and subtropical South America. '' H. plecostomus'' is the popular freshwater aquarium fish formerly known as ''Plecostomus plecostomus''. The taxonomic structure of the Loricariidae is still being expanded by scientists. ''Hypostomus'' is a highly species-rich and widely distributed catfish genus. [Baidu] |
Ophichthidae
Ophichthidae is a family of fish in the order Anguilliformes, commonly known as the snake eels. The term "Ophichthidae" comes from Greek ''ophis'' ("serpent") and ''ichthys'' ("fish"). Snake eels are also burrowing eels. They are named for their physical appearance, as they have long, cylindrical, snake-like bodies. This family is found worldwide in tropical to warm temperate waters. They inhabit a wide range of habitats, from coastal shallows and even rivers, to depths below . Most species are bottom dwellers, hiding in mud or sand to capture their prey of crustaceans and small fish, but some are pelagic. These species range in total length from to or more. Many species lack fins altogether, improving their ability to burrow into the substrate like worms. They are often spotted or striped in colour, mimicking the appearance of venomous sea snakes to deter predators. Often, they are washed ashore by large storms. Genera Currently, 62 recognized genera are placed in this fami ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bony Fish
Osteichthyes (), popularly referred to as the bony fish, is a diverse superclass of fish that have skeletons primarily composed of bone tissue. They can be contrasted with the Chondrichthyes, which have skeletons primarily composed of cartilage. The vast majority of fish are members of Osteichthyes, which is an extremely diverse and abundant group consisting of 45 orders, and over 435 families and 28,000 species. It is the largest class of vertebrates in existence today. The group Osteichthyes is divided into the ray-finned fish ( Actinopterygii) and lobe-finned fish (Sarcopterygii). The oldest known fossils of bony fish are about 425 million years old, which are also transitional fossils, showing a tooth pattern that is in between the tooth rows of sharks and bony fishes. Osteichthyes can be compared to Euteleostomi. In paleontology the terms are synonymous. In ichthyology the difference is that Euteleostomi presents a cladistic view which includes the terrestrial tet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macrobrachium
''Macrobrachium'' is a genus of freshwater prawns or shrimps characterised by the extreme enlargement of the second pair of pereiopods, at least in the male. Species It contains these species: *'' Macrobrachium acanthochirus'' F. Villalobos, 1967 *'' Macrobrachium acanthurus'' (Wiegmann, 1836) *'' Macrobrachium acherontium'' Holthuis, 1977 *'' Macrobrachium adscitum'' Riek, 1951 *'' Macrobrachium aemulum'' (Nobili, 1906) *'' Macrobrachium agwi'' Klotz, 2008 *''Macrobrachium ahkowi'' Chong & Khoo, 1987 *'' Macrobrachium altifrons'' (Henderson, 1893) *''Macrobrachium amazonicum'' (Heller, 1862) *'' Macrobrachium americanum'' Spence Bate, 1868 *'' Macrobrachium amplimanus'' Cai & Dai, 1999 *''Macrobrachium andamanicum'' (Tiwari, 1952) *''Macrobrachium aracamuni'' Rodríguez, 1982 *''Macrobrachium asperulum'' (von Martens, 1868) *''Macrobrachium assamense'' (Tiwari, 1958) *''Macrobrachium atabapense'' S. Pereira, 1986 *''Macrobrachium atactum'' Riek, 1951 *''Macrobrachium auratu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alpheus (crustacean)
''Alpheus'' is a genus of snapping shrimp of the family Alpheidae. This genus contains in excess of 291 species, making this the most species-rich genus of shrimp. Like other snapping shrimp, the claws of ''Alpheus'' are asymmetrical, with one of the claws enlarged for making a popping noise. Some species in the genus enter into symbiotic relationships with gobiid fishes, and others associate with sea anemones. It's also the noisiest of all sea creatures and can immobilize small fish with its high pitched frequency. Species The following species are included: *'' Alpheus acutocarinatus'' De Man, 1909 *'' Alpheus acutofemoratus'' Dana, 1852 *'' Alpheus adamastor'' Coutière, 1908 *''Alpheus aequus'' W. Kim & Abele, 1988 *''Alpheus agilis'' Anker, Hurt & Knowlton, 2009 *''Alpheus agrogon'' Ramos, 1997 *'' Alpheus albatrossae'' (Banner, 1953) *'' Alpheus alcyone'' De Man, 1902 *''Alpheus alpheopsides'' Coutière, 1905 *''Alpheus amblyonyx'' Chace, 1972 *''Alpheus amirantei'' Cou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shrimp
Shrimp are crustaceans (a form of shellfish) with elongated bodies and a primarily swimming mode of locomotion – most commonly Caridea and Dendrobranchiata of the decapod order, although some crustaceans outside of this order are referred to as "shrimp". More narrow definitions may be restricted to Caridea, to smaller species of either group or to only the marine species. Under a broader definition, ''shrimp'' may be synonymous with prawn, covering stalk-eyed swimming crustaceans with long, narrow muscular tails (abdomens), long whiskers ( antennae), and slender legs. Any small crustacean which resembles a shrimp tends to be called one. They swim forward by paddling with swimmerets on the underside of their abdomens, although their escape response is typically repeated flicks with the tail driving them backwards very quickly. Crabs and lobsters have strong walking legs, whereas shrimp have thin, fragile legs which they use primarily for perching.Rudloe & Rudloe (2009 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ucides Cordatus
''Ucides cordatus'', the swamp ghost crab (or ''caranguejo-uçá'' in Portuguese), is one of two species of crabs in the genus ''Ucides''. This species of crab is native to many coasts off of the western Atlantic Ocean. It has been found to be native to areas as far as Florida, to as southern as Uruguay. ''U. cordatus'' is especially noteworthy in the country in Brazil as it plays important roles in the economy and food resources at Brazil’s Atlantic borders. Like most other crabs, ''U. cordatus'' has two distinct pinchers for different uses. Its left sharp pincher functions to cut and feed and the other pincher, is much larger and used to crush objects. It has an oval back with a very unique color scheme. ''U. cordatus'' is one of many animals that have sexual dimorphism. Most noticeably, female crabs are larger than their male counter parts. Males have a flatter oval shaped back with a distinct light blue in the middle with a beige white encompassing its back. On the other h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uca Maracoani
The fiddler crab or calling crab may be any of more than one hundred species of semiterrestrial marine crabs in the family Ocypodidae, well known for their sexually dimorphic claws; the males' major claw is much larger than the minor claw, while the females' claws are both the same size. A smaller number of ghost crab and mangrove crab species are also found in the family Ocypodidae. This entire group is composed of small crabs, the largest being slightly over two inches (5 cm) across. Fiddler crabs are found along sea beaches and brackish intertidal mud flats, lagoons, swamps, and various other types of brackish or salt-water wetlands. Like all crabs, fiddler crabs shed their shells as they grow. If they have lost legs or claws during their present growth cycle, a new one will be present when they molt. If the large fiddle claw is lost, males will develop one on the same side after their next molt. Newly molted crabs are very vulnerable because of their soft shells. They ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Fish Larvae")
