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Macrophthalmus Holthuisi
''Macrophthalmus holthuisi'' is a species of crab in the family Macrophthalmidae The Macrophthalmidae are a family of crabs, comprising these subfamilies and genera: ;Ilyograpsinae Števčić, 2005 *'' Apograpsus'' Komai & Wada, 2008 *'' Ilyograpsus'' Barnard, 1955 ;Macrophthalminae Dana, 1851 *'' Australoplax'' Barnes, 1966 .... It was described by Sèrene in 1973. References {{Taxonbar, from=Q13806014 Ocypodoidea Crustaceans described in 1973 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animalia
Animals are multicellular, eukaryotic organisms in the biological kingdom Animalia. With few exceptions, animals consume organic material, breathe oxygen, are able to move, can reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of cells, the blastula, during embryonic development. Over 1.5 million living animal species have been described—of which around 1 million are insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a bilaterally symmetric body plan. The Bilateria include the protostomes, containing animals such as nematodes, arthropods, flatworms, annelids and molluscs, and the deuterostomes, containing the echinode ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthropoda
Arthropods (, (gen. ποδός)) are invertebrate animals with an exoskeleton, a Segmentation (biology), segmented body, and paired jointed appendages. Arthropods form the phylum Arthropoda. They are distinguished by their jointed limbs and Arthropod cuticle, cuticle made of chitin, often Mineralization (biology), mineralised with calcium carbonate. The arthropod body plan consists of segments, each with a pair of appendages. Arthropods are bilaterally symmetrical and their body possesses an exoskeleton, external skeleton. In order to keep growing, they must go through stages of moulting, a process by which they shed their exoskeleton to reveal a new one. Some species have wings. They are an extremely diverse group, with up to 10 million species. The haemocoel, an arthropod's internal cavity, through which its haemolymph – analogue of blood – circulates, accommodates its interior Organ (anatomy), organs; it has an open circulatory system. Like their exteriors, the internal or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crustacea
Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amphipods and mantis shrimp. The crustacean group can be treated as a subphylum under the clade Mandibulata. It is now well accepted that the hexapods emerged deep in the Crustacean group, with the completed group referred to as Pancrustacea. Some crustaceans (Remipedia, Cephalocarida, Branchiopoda) are more closely related to insects and the other hexapods than they are to certain other crustaceans. The 67,000 described species range in size from '' Stygotantulus stocki'' at , to the Japanese spider crab with a leg span of up to and a mass of . Like other arthropods, crustaceans have an exoskeleton, which they moult to grow. They are distinguished from other groups of arthropods, such as insects, myriapods and chelicerates, by the possession of biramous (two-parted) limbs, and by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malacostraca
Malacostraca (from New Latin; ) is the largest of the six classes of crustaceans, containing about 40,000 living species, divided among 16 orders. Its members, the malacostracans, display a great diversity of body forms and include crabs, lobsters, crayfish, shrimp, krill, prawns, woodlice, amphipods, mantis shrimp, tongue-eating lice and many other less familiar animals. They are abundant in all marine environments and have colonised freshwater and terrestrial habitats. They are segmented animals, united by a common body plan comprising 20 body segments (rarely 21), and divided into a head, thorax, and abdomen. Etymology The name Malacostraca was coined by a French zoologist Pierre André Latreille in 1802. He was curator of the arthropod collection at the National Museum of Natural History in Paris. The name comes from the Greek roots (', meaning "soft") and (', meaning "shell"). The name is misleading, since the shell is soft only immediately after moulting, and is u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Decapoda
The Decapoda or decapods (literally "ten-footed") are an order of crustaceans within the class Malacostraca, including many familiar groups, such as crabs, lobsters, crayfish, shrimp and prawns. Most decapods are scavengers. The order is estimated to contain nearly 15,000 species in around 2,700 genera, with around 3,300 fossil species. Nearly half of these species are crabs, with the shrimp (about 3,000 species) and Anomura including hermit crabs, porcelain crabs, squat lobsters (about 2500 species) making up the bulk of the remainder. The earliest fossil decapod is the Devonian ''Palaeopalaemon''. Anatomy Decapods can have as many as 38 appendages, arranged in one pair per body segment. As the name Decapoda (from the Greek , ', "ten", and , '' -pod'', "foot") implies, ten of these appendages are considered legs. They are the pereiopods, found on the last five thoracic segments. In many decapods, one pair of these "legs" has enlarged pincers, called chelae, with the legs be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ocypodoidea
The Ocypodoidea, or ocypoid crabs, are a superfamily of crabs, named after the genus ''Ocypode''. It contains over 300 extant species in these eight families: * Camptandriidae Stimpson, 1858 * Dotillidae Stimpson, 1858 * Heloeciidae H. Milne-Edwards, 1852 * Macrophthalmidae Dana, 1851 * Mictyridae Dana, 1851 * Ocypodidae The Ocypodidae are a family of semiterrestrial crabs that includes the ghost crabs and fiddler crabs. They are found on tropical and temperate shorelines around the world. Some genera previously included in the family are now treated as members o ... Rafinesque, 1815 * Ucididae Števčić, 2005 * Xenophthalmidae Stimpson, 1858 References Crabs Taxa named by Constantine Samuel Rafinesque Arthropod superfamilies {{crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macrophthalmidae
The Macrophthalmidae are a family of crabs, comprising these subfamilies and genera: ;Ilyograpsinae Števčić, 2005 *'' Apograpsus'' Komai & Wada, 2008 *'' Ilyograpsus'' Barnard, 1955 ;Macrophthalminae Dana, 1851 *'' Australoplax'' Barnes, 1966 *'' Enigmaplax'' Davie, 1993 *'' Hemiplax'' Heller, 1865 *'' Lutogemma'' Davie, 2008 *''Macrophthalmus ''Macrophthalmus'' is a genus of crabs which are widespread across the Indo-Pacific. It contains the following species (arranged into subgenera In biology, a subgenus (plural: subgenera) is a taxonomic rank directly below genus. In the Inter ...'' Desmarest, 1823 *'' Tasmanoplax'' Barnes, 1967 *'' Venitus'' Barnes, 1967 ;Tritodynamiinae Števčić, 2005 *'' Tritodynamia'' Ortmann, 1894 References Ocypodoidea Decapod families {{crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macrophthalmus
''Macrophthalmus'' is a genus of crabs which are widespread across the Indo-Pacific. It contains the following species (arranged into subgenera): ;Subgenus ''Chaenostoma'' Stimpson, 1858 *'' Macrophthalmus boscii'' Audouin, 1826 *'' Macrophthalmus dentatus'' Stimpson, 1858 *'' Macrophthalmus punctulatus'' Miers, 1884 ;Subgenus ''Euplax'' H. Milne-Edwards, 1852 *''Macrophthalmus leptophthalmus'' H. Milne-Edwards, 1852 *'' Macrophthalmus dagohoyi'' Mendoza & Ng, 2007 ;Subgenus ''Hemiplax'' Heller, 1865 *''Macrophthalmus hirtipes'' (Jacquinot ''in'' Hombron & Jacquinot, 1846) ;Subgenus ''Macrophthalmus'' Desmarest, 1823 *'' Macrophthalmus abbreviatus'' Manning & Holthuis, 1981 *'' Macrophthalmus banzai'' Wada & K. Sakai, 1989 *'' Macrophthalmus brevis'' (Herbst, 1804) *''Macrophthalmus ceratophorus'' Sakai, 1969 *''Macrophthalmus consobrinus'' Nobili, 1906 *''Macrophthalmus convexus'' Stimpson, 1858 *''Macrophthalmus crassipes'' H. Milne-Edwards, 1852 *''Macrophthalmus darwinensis'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crab
Crabs are decapod crustaceans of the infraorder Brachyura, which typically have a very short projecting "tail" (abdomen) ( el, βραχύς , translit=brachys = short, / = tail), usually hidden entirely under the thorax. They live in all the world's oceans, in freshwater, and on land, are generally covered with a thick exoskeleton, and have a single pair of pincers. They first appeared during the Jurassic Period. Description Crabs are generally covered with a thick exoskeleton, composed primarily of highly mineralized chitin, and armed with a pair of chelae (claws). Crabs vary in size from the pea crab, a few millimeters wide, to the Japanese spider crab, with a leg span up to . Several other groups of crustaceans with similar appearances – such as king crabs and porcelain crabs – are not true crabs, but have evolved features similar to true crabs through a process known as carcinisation. Environment Crabs are found in all of the world's oceans, as well as in fresh w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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