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Tri-spine Horseshoe Crab
''Tachypleus tridentatus'', commonly known as the Chinese horseshoe crab, Japanese horseshoe crab, or tri-spine horseshoe crab, is a species of horseshoe crab found in Southeast and East Asia, with records from China, Indonesia, Japan, South Korea, Malaysia, the Philippines, Taiwan, and Vietnam. It is found in coastal marine and brackish waters, and tolerates colder temperatures than the other Asian horseshoe crabs (''Tachypleus gigas'' and ''Carcinoscorpius rotundicauda''), although juveniles still need water warmer than to moult. Description Horseshoe crabs are not crabs at all, but are most closely related to spiders and scorpions, and may even be arachnids themselves. The cephalothorax is protected by this single large, horseshoe-shaped plate, and neither it nor the abdomen is visibly segmented. The tail bears a long spike, known as the telson. Like other horseshoe crabs, the carapace of ''T. tridentatus'' consists of a larger frontal one (the prosoma) and a smaller, spine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Elford Leach
William Elford Leach (2 February 1791 – 25 August 1836) was an English zoologist and marine biologist. Life and work Elford Leach was born at Hoe Gate, Plymouth, the son of an attorney. At the age of twelve he began a medical apprenticeship at the Royal Devon and Exeter Hospital, Devonshire and Exeter Hospital, studying anatomy and chemistry. By this time he was already collecting marine animals from Plymouth Sound and along the Devon coast. At seventeen he began studying medicine at St Bartholomew's Hospital in London, finishing his training at the University of Edinburgh before graduating Doctor of Medicine, MD from the University of St Andrews (where he had never studied). From 1813 Leach concentrated on his zoological interests and was employed as an 'Assistant Librarian' (what would later be called Assistant Keeper) in the Natural History Museum, London, Natural History Department of the British Museum, where he had responsibility for the zoological collections. Here ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kota Kinabalu
Kota Kinabalu (; formerly known as Jesselton), colloquially referred to as KK, is the state capital of Sabah, Malaysia. It is also the capital of the Kota Kinabalu District as well as the West Coast Division of Sabah. The city is located on the northwest coast of Borneo facing the South China Sea. The Tunku Abdul Rahman National Park lies to its west and Mount Kinabalu, which gave the city its name, is located to its east. Kota Kinabalu has a population of 452,058 according to the 2010 census; when the adjacent Penampang District, Penampang and Tuaran District, Tuaran districts are included, the metro area has a combined population of 628,725. The 2020 Census revealed an increase in the municipal population to 500,421, while the wider area including the Penampang and Putatan districts had a population of 731,406. Historically, the Kadazandusuns called the area by the name of Dondoung. In the 15th century, the area of Kota Kinabalu was under the influence of Bruneian Empire. In t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Algae
Algae ( , ; : alga ) is an informal term for any organisms of a large and diverse group of photosynthesis, photosynthetic organisms that are not plants, and includes species from multiple distinct clades. Such organisms range from unicellular microalgae, such as cyanobacteria, ''Chlorella'', and diatoms, to multicellular macroalgae such as kelp or brown algae which may grow up to in length. Most algae are aquatic organisms and lack many of the distinct cell and tissue types, such as stomata, xylem, and phloem that are found in embryophyte, land plants. The largest and most complex marine algae are called seaweeds. In contrast, the most complex freshwater forms are the Charophyta, a Division (taxonomy), division of green algae which includes, for example, ''Spirogyra'' and stoneworts. Algae that are carried passively by water are plankton, specifically phytoplankton. Algae constitute a Polyphyly, polyphyletic group because they do not include a common ancestor, and although Eu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benthos
Benthos (), also known as benthon, is the community of organisms that live on, in, or near the bottom of a sea, river, lake, or stream, also known as the benthic zone.Benthos from the Census of Antarctic Marine Life website This community lives in or near marine or freshwater sedimentary environments, from tidal pools along the , out to the continental shelf, and then down to the [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polychaete
Polychaeta () is a paraphyletic class of generally marine Annelid, annelid worms, common name, commonly called bristle worms or polychaetes (). Each body segment has a pair of fleshy protrusions called parapodia that bear many bristles, called chaetae, which are made of chitin. More than 10,000 species are described in this class. Common representatives include the lugworm (''Arenicola marina'') and the Alitta virens, sandworm or Alitta succinea, clam worm ''Alitta''. Polychaetes as a class are robust and widespread, with species that live in the coldest ocean temperatures of the abyssal plain, to forms which tolerate the extremely high temperatures near hydrothermal vents. Polychaetes occur throughout the Earth's oceans at all depths, from forms that live as plankton near the surface, to a 2- to 3-cm specimen (still unclassified) observed by the robot ocean probe Nereus (underwater vehicle), ''Nereus'' at the bottom of the Challenger Deep, the deepest known spot in the Earth's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mollusc
Mollusca is a phylum of protostome, protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant taxon, extant species of molluscs are recognized, making it the second-largest animal phylum after Arthropoda. The number of additional fossil species is estimated between 60,000 and 100,000, and the proportion of undescribed species is very high. Many taxa remain poorly studied. Molluscs are the largest marine biology, marine phylum, comprising about 23% of all the named marine organisms. They are highly diverse, not just in size and anatomical structure, but also in behaviour and habitat, as numerous groups are freshwater mollusc, freshwater and even terrestrial molluscs, terrestrial species. The phylum is typically divided into 7 or 8 taxonomy (biology), taxonomic class (biology), classes, of which two are entirely extinct. Cephalopod molluscs, such as squid, cuttlefish, and octopuses, are among the most neurobiology, neurologi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tachypleus Tridentatus Cat Ba
''Tachypleus'' is a genus of south, southeast and east Asian horseshoe crabs in the family Limulidae. Species There are two extant (living) species: * ''Tachypleus gigas'' (Müller, 1785) * ''Tachypleus tridentatus'' ( Leach, 1819) And two extinct species only known from fossil. * '' Tachypleus decheni'' (Zincken, 1862) Upper Eocene Domsen Sands, Germany * '' Tachypleus syriacus'' (Woodward, 1879) Upper Cretaceous (Cenomanian The Cenomanian is, in the International Commission on Stratigraphy's (ICS) geological timescale, the oldest or earliest age (geology), age of the Late Cretaceous epoch (geology), Epoch or the lowest stage (stratigraphy), stage of the Upper Cretace ...) Haqel and Hjoula Konservat-Lagerstatten, Lebanon References External links * Xiphosura Extant Cenomanian first appearances Chelicerate genera Taxonomy articles created by Polbot {{Chelicerata-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Instar
An instar (, from the Latin '' īnstar'' 'form, likeness') is a developmental stage of arthropods, such as insects, which occurs between each moult (''ecdysis'') until sexual maturity is reached. Arthropods must shed the exoskeleton in order to grow or assume a new form. Differences between instars can often be seen in altered body proportions, colors, patterns, changes in the number of body segments or head width. After shedding their exoskeleton (moulting), the juvenile arthropods continue in their life cycle until they either pupate or moult again. The instar period of growth is fixed; however, in some insects, like the salvinia stem-borer moth, the number of instars depends on early larval nutrition. Some arthropods can continue to moult after sexual maturity, but the stages between these subsequent moults are generally not called instars. For most insect species, an ''instar'' is the developmental stage of the larval forms of holometabolous (complete metamorphism) or ny ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sibolga
Sibolga (formerly sometimes Siboga) is a city and a port located in the natural harbour of Sibolga Bay on the west coast of North Sumatra province, in Indonesia. The city is located on the western side of North Sumatra facing the Indian Ocean, is a transit harbour to Nias Island, and was hard hit during the 2004 Indian Ocean earthquake. Sibolga is also a semi-enclave within Central Tapanuli Regency, as Sibolga borders Central Tapanuli Regency in the north, east, and south, while it borders the Mentawai Strait in the west. The city has an area of only 10.77 km2 and is the smallest city by land area in Indonesia. It had a population of 84,444 at the 2010 censusBiro Pusat Statistik, Jakarta, 2011. and 89,584 at the 2020 census;Badan Pusat Statistik, Jakarta, 2021. the official estimate as at mid 2023 was 91,265 - comprising 45,839 males and 45,426 females.Badan Pusat Statistik, Jakarta, 28 February 2024, ''Kota Sibolga Dalam Angka 2024'' (Katalog-BPS 1102001.1273) Adminis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Padang
Padang () is the Capital city, capital and largest city of the Indonesian Provinces of Indonesia, province of West Sumatra. It had a population of 833,562 at the 2010 CensusBiro Pusat Statistik, Jakarta, 2011. and 909,040 at the 2020 Census;Badan Pusat Statistik, Jakarta, 2021. the official estimate as at mid 2023 was 942,938 - comprising 473,089 males and 469,849 females.Badan Pusat Statistik, Jakarta, 28 February 2024, ''Kota Padang Dalam Angka 2024'' (Katalog-BPS 1102001.1371) It is the List of cities in Indonesia by population, 16th most populous city in Indonesia and the most populous city on the west coast of Sumatra. The Padang metropolitan area is the List of metropolitan areas in Indonesia, third most populous metropolitan area in Sumatra with a population of over 1.7 million. Padang is widely known for its Minangkabau people, Minangkabau culture, Padang cuisine, cuisine, and sunset beaches. The city had historically been a trading center since the pre-colonial era, in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tarakan
Tarakan is an island and co-extensively the sole city within the Indonesian province of North Kalimantan. The island city is the largest urban area in North Kalimantan population-wise and is located in northern Borneo, midway along the coast of the province. The city boundaries are co-extensive with the island (including a couple of small islands off the coast of the Tarakan Barat District). Once a major oil-producing region during the colonial period, Tarakan had great strategic importance during the Pacific War and was among the first Japanese targets early in the conflict. It is the sole city within the Indonesian province of North Kalimantan (established in 2012). According to Statistics Indonesia, the city had a population of 193,370 at the 2010 CensusBiro Pusat Statistik, Jakarta, 2011. and 242,786 inhabitants at the 2020 Census;Badan Pusat Statistik, Jakarta, 2021. the official estimate as at mid 2024 was 255,310 (comprising 132,175 males and 123,135 females).Badan Pusat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manado
Manado (, ) is the capital City status in Indonesia, city of the Indonesian Provinces of Indonesia, province of North Sulawesi. It is the second largest city in Sulawesi after Makassar, with the 2020 census giving a population of 451,916,Badan Pusat Statistik, Jakarta, 2021. and the official estimates for mid 2023 showing 458,582 inhabitants (229,982 males and 228,600 females),Badan Pusat Statistik, Jakarta, 28 February 2024, ''Kota Manado Dalam Angka 2024'' (Katalog-BPS 1102001.7171) distributed over a land area of 157.26 km2.Badan Pusat Statistik, Jakarta, 28 February 2024, ''Kota Manado Dalam Angka 2024'' (Katalog-BPS 1102001.7171) The Manado metropolitan area had a population of 1,377,815 as of mid 2023.Badan Pusat Statistik, Jakarta, 28 February 2024, ''Kota Manado Dalam Angka 2024'' (Katalog-BPS 1102001.7171) The city is situated on the Bay of Manado, and is surrounded by a mountainous area. Manado is among Indonesia's top-five tourism priorities and Bunaken National ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
