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Ligidium Duospinatum
''Ligidium duospinatum'' is a species of terrestrial isopod in the family Ligiidae, found in China. It is only known from a single location near Dongbacai Village in the Tibet Autonomous Region. The species name ''duospinatum'' refers to the diagnostic two spines on the apex of the male second pleopod endopodite, which distinguishes it from closely related species. The only known specimens were collected from beside a stream at above sea level. ''Ligidium duospinatum'' is dark grey with white markings and yellowish green spots. Males range in size from in length and females range from in length. It is very similar to '' Ligidium inerme'' in overall appearance but can be separated by the flagellum A flagellum (; : flagella) (Latin for 'whip' or 'scourge') is a hair-like appendage that protrudes from certain plant and animal sperm cells, from fungal spores ( zoospores), and from a wide range of microorganisms to provide motility. Many pr ... having seven segments, and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isopoda
Isopoda is an order of crustaceans. Members of this group are called isopods and include both aquatic species and terrestrial species such as woodlice. All have rigid, segmented exoskeletons, two pairs of antennae, seven pairs of jointed limbs on the thorax, and five pairs of branching appendages on the abdomen that are used in respiration. Females brood their young in a pouch under their thorax called the marsupium. Isopods have various feeding methods: some eat dead or decaying plant and animal matter, others are grazers or filter feeders, a few are predators, and some are internal or external parasites, mostly of fish. Aquatic species mostly live on the seabed or the bottom of freshwater bodies of water, but some taxa can swim for short distance. Terrestrial forms move around by crawling and tend to be found in cool, moist places. Some species are able to roll themselves into a ball as a defense mechanism or to conserve moisture like species in the family Armadilli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ligiidae
Ligiidae is a family of woodlice, the only family in the infraorder Diplocheta. Its members are common on rocky shores, in similar habitats to those inhabited by species of the bristletail '' Petrobius'' and the crab '' Cyclograpsus''. The family contains these genera: *'' Caucasoligidium'' Borutzky, 1950 *†'' Eoligiiscus'' Sánchez-García, Peñalver, Delclos & Engel, 2021 *''Ligia ''Ligia'' is a genus of isopods, commonly known as rock lice or sea slaters. Most ''Ligia'' species live in tidal zone cliffs and rocky beaches, but there are several fully terrestrial species which occur in high-humidity environments. Ecolo ...'' Fabricius, 1798 *'' Ligidioides'' Wahrberg, 1922 *'' Ligidium'' Brandt, 1833 *'' Tauroligidium'' Borutzky, 1950 *'' Typhloligidium'' Verhoeff, 1918 References Woodlice Isopod families {{isopod-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
China
China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after India, representing 17.4% of the world population. China spans the equivalent of five time zones and Borders of China, borders fourteen countries by land across an area of nearly , making it the list of countries and dependencies by area, third-largest country by land area. The country is divided into 33 Province-level divisions of China, province-level divisions: 22 provinces of China, provinces, 5 autonomous regions of China, autonomous regions, 4 direct-administered municipalities of China, municipalities, and 2 semi-autonomous special administrative regions. Beijing is the country's capital, while Shanghai is List of cities in China by population, its most populous city by urban area and largest financial center. Considered one of six ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tibet Autonomous Region
The Tibet Autonomous Region (TAR), often shortened to Tibet in English or Xizang in Pinyin, Hanyu Pinyin, is an Autonomous regions of China, autonomous region of the China, People's Republic of China. It was established in 1965 to replace the Tibet Area (administrative division), Tibet Area, a former administrative division of the Republic of China (1912–1949), Republic of China. The current borders of the Tibet Autonomous Region were generally established in the 18th century and include about half of Tibet, cultural Tibet, which was at times independent and at times under Mongol or Chinese rule. The TAR spans more than and is the second-largest Administrative divisions of China, province-level division of China by area. Due to its harsh and rugged terrain, it has a total population of only 3.6 million people or approximately . Names and etymologies Tibet Autonomous Region is often shortened to Tibet in English or Xizang in Hanyu Pinyin. The earliest official record of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pleopod
The anatomy of a decapod consists of 20 body segments grouped into two main body parts: the cephalothorax and the pleon (abdomen). Each segment – often called a somite – may possess one pair of appendages, although in various groups these may be reduced or missing. Cephalothorax Head # antennules # antennae # mandibles # first maxillae # second maxillae The head also bears the (usually stalked) compound eyes. The distal portion of a mandible or maxilla which has a sensory function is known as a palp. Thorax / pereon #first maxillipeds #second maxillipeds #third maxillipeds #first pereiopods #second pereiopods #third pereiopods #fourth pereiopods #fifth pereiopods Maxillipeds are appendages modified to function as mouthparts. Particularly in the less advanced decapods, these can be very similar to the pereiopods. Pereiopods are primarily walking legs and are also used for gathering food. They are also the ten legs from which decapods take their name. Those pereiopods which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endopodite
The arthropod leg is a form of jointed appendage of arthropods, usually used for walking. Many of the terms used for arthropod leg segments (called podomeres) are of Latin origin, and may be confused with terms for bones: ''coxa'' (meaning hip, : ''coxae''), ''trochanter'', ''femur'' (: ''femora''), ''tibia'' (: ''tibiae''), ''tarsus'' (: ''tarsi''), ''ischium'' (: ''ischia''), ''metatarsus'', ''carpus'', ''dactylus'' (meaning finger), ''patella'' (: ''patellae''). Homologies of leg segments between groups are difficult to prove and are the source of much argument. Some authors posit up to eleven segments per leg for the most recent common ancestor of extant arthropods but modern arthropods have eight or fewer. It has been argued that the ancestral leg need not have been so complex, and that other events, such as successive loss of function of a ''Hox''-gene, could result in parallel gains of leg segments. In arthropods, each of the leg segments articulates with the next segmen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ligidium Inerme
''Ligidium'' is a genus of woodlice. It contains about 68 species, six of which are probably taxonomic synonyms of '' Ligidium hypnorum'' or '' Ligidium germanicum''. Of the remainder, 18 species are found in North America, six in Japan, two in Taiwan, four in China, 12 in Turkey, the Caucasus, and Central Asia, and six in Greece. The following is an incomplete list of ''Ligidium'' species: *''Ligidium acuminatum'' Li, 2022 *'' Ligidium acutitelson'' Wang & Kwon, 1993 *'' Ligidium anatolicum'' Frankenberger, 1950 *''Ligidium assimile'' Strouhal, 1971 *'' Ligidium beieri'' Strouhal, 1928 *'' Ligidium birsteini'' Borutzky, 1950 *'' Ligidium blueridgensis'' Schultz, 1964 *''Ligidium bosniense'' Verhoeff, 1901 *''Ligidium bosporanum'' Verhoeff, 1941 *''Ligidium burmanicum'' Verhoeff, 1946 *''Ligidium cavaticum'' Borutzky, 1950 *''Ligidium chatoogaensis'' Schultz, 1970 *''Ligidium cycladicum'' Matsakis, 1978 *''Ligidium denticulatum'' Shen, 1949 *''Ligidium duospinatum'' Li, 2022 *' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flagellomere
An antenna (plural: antennae) is one of a pair of appendages used for sensing in arthropods. Antennae are sometimes referred to as ''feelers''. Antennae are connected to the first one or two segments of the arthropod head. They vary widely in form but are always made of one or more jointed segments. While they are typically sensory organs, the exact nature of what they sense and how they sense it is not the same in all groups. Functions may variously include sensing touch, air motion, heat, vibration (sound), and especially smell or taste. Antennae are sometimes modified for other purposes, such as mating, brooding, swimming, and even anchoring the arthropod to a substrate. Larval arthropods have antennae that differ from those of the adult. Many crustaceans, for example, have free-swimming larvae that use their antennae for swimming. Antennae can also locate other group members if the insect lives in a group, like the ant. The common ancestor of all arthropods likely had on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Fauna Of Tibet
Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can also be referred to as an ''endemism'' or, in scientific literature, as an ''endemite''. Similarly, many species found in the Western ghats of India are examples of endemism. Endemism is an important concept in conservation biology for measuring biodiversity in a particular place and evaluating the risk of extinction for species. Endemism is also of interest in evolutionary biology, because it provides clues about how changes in the environment cause species to undergo range shifts (potentially expanding their range into a larger area or becomin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crustaceans Of China
Crustaceans (from Latin meaning: "those with shells" or "crusted ones") are invertebrate animals that constitute one group of arthropods that are traditionally a part of the subphylum Crustacea (), a large, diverse group of mainly aquatic arthropods including decapods (shrimps, prawns, crabs, lobsters and crayfish), seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, opossum shrimps, 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 (insects and entognathans) emerged deep in the Crustacean group, with the completed pan-group referred to as Pancrustacea. The three classes Cephalocarida, Branchiopoda and Remipedia are more closely related to the hexapods than they are to any of the other crustaceans (oligostracans and multicrustaceans). The 67,000 described species range in size from ''Stygotantulus stocki'' at , to the Japanese spider crab with a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
