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Limnodriloides Anxius
Limnodriloides anxius is a species of clitellate oligochaete worm, first found in Belize, on the Caribbean Sea, Caribbean side of Central America. References Further reading * Aquatic Oligochaete Biology V. Springer Netherlands * * External linksWORMS Tubificina Taxa named by Christer Erséus {{annelid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal
Animals are multicellular, eukaryotic organisms in the Kingdom (biology), biological kingdom Animalia. With few exceptions, animals Heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, are Motility, able to move, can Sexual reproduction, reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of Cell (biology), cells, the blastula, during Embryogenesis, embryonic development. Over 1.5 million Extant taxon, living animal species have been Species description, described—of which around 1 million are Insecta, insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have Ecology, 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 Symmetry in biology#Bilate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Christer Erséus
Christer Erséus, born 1951 in Borås, is a Swedish zoologist. He defended his doctoral dissertation in 1980 at the University of Gothenburg, where in 1991 he became professor of zoology and director of studies in zoomorphology and systematics. Prior to becoming professor at Gothenburg he worked at the Department of Invertebrate Zoology (NRM) at the Swedish Museum of Natural History. His doctoral dissertation treated the ringworm group Clitellata. Over the years, he has described over 500 new species of tapeworms, and has published over 200 scientific articles on Clitellata The Clitellata are a class of annelid worms, characterized by having a clitellum - the 'collar' that forms a reproductive cocoon during part of their life cycles. The clitellates comprise around 8,000 species. Unlike the class of Polychaeta, t .... Christer Erséus is considered one of the world's leading experts in the group of worms. His zoological author abbreviation is Erséus. According to wikidata ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caribbean Sea
The Caribbean Sea ( es, Mar Caribe; french: Mer des Caraïbes; ht, Lanmè Karayib; jam, Kiaribiyan Sii; nl, Caraïbische Zee; pap, Laman Karibe) is a sea of the Atlantic Ocean in the tropics of the Western Hemisphere. It is bounded by Mexico and Central America to the west and southwest, to the north by the Greater Antilles starting with Cuba, to the east by the Lesser Antilles, and to the south by the northern coast of South America. The Gulf of Mexico lies to the northwest. The entire area of the Caribbean Sea, the numerous islands of the West Indies, and adjacent coasts are collectively known as the Caribbean. The Caribbean Sea is one of the largest seas and has an area of about . The sea's deepest point is the Cayman Trough, between the Cayman Islands and Jamaica, at below sea level. The Caribbean coastline has many gulfs and bays: the Gulf of Gonâve, Gulf of Venezuela, Gulf of Darién, Golfo de los Mosquitos, Gulf of Paria and Gulf of Honduras. The Caribbean Sea has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Belize
Belize (; bzj, Bileez) is a Caribbean and Central American country on the northeastern coast of Central America. It is bordered by Mexico to the north, the Caribbean Sea to the east, and Guatemala to the west and south. It also shares a water boundary with Honduras to the southeast. It has an area of and a population of 441,471 (2022). Its mainland is about long and wide. It is the least populated and least densely populated country in Central America. Its population growth rate of 1.87% per year (2018 estimate) is the second-highest in the region and one of the highest in the Western Hemisphere. Its capital is Belmopan, and its largest city is the namesake city of Belize City. Belize is often thought of as a Caribbean country in Central America because it has a history similar to that of English-speaking Caribbean nations. Indeed, Belize’s institutions and official language reflect its history as a British colony. The Maya civilization spread into the area of B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Worm
Worms are many different distantly related bilateral animals that typically have a long cylindrical tube-like body, no limbs, and no eyes (though not always). Worms vary in size from microscopic to over in length for marine polychaete worms (bristle worms); for the African giant earthworm, '' Microchaetus rappi''; and for the marine nemertean worm (bootlace worm), '' Lineus longissimus''. Various types of worm occupy a small variety of parasitic niches, living inside the bodies of other animals. Free-living worm species do not live on land but instead live in marine or freshwater environments or underground by burrowing. In biology, "worm" refers to an obsolete taxon, '' vermes'', used by Carolus Linnaeus and Jean-Baptiste Lamarck for all non-arthropod invertebrate animals, now seen to be paraphyletic. The name stems from the Old English word '' wyrm''. Most animals called "worms" are invertebrates, but the term is also used for the amphibian caecilians and the slow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oligochaete
Oligochaeta () is a subclass of animals in the phylum Annelida, which is made up of many types of aquatic and terrestrial worms, including all of the various earthworms. Specifically, oligochaetes comprise the terrestrial megadrile earthworms (some of which are semiaquatic or fully aquatic), and freshwater or semiterrestrial microdrile forms, including the tubificids, pot worms and ice worms ( Enchytraeidae), blackworms ( Lumbriculidae) and several interstitial marine worms. With around 10,000 known species, the Oligochaeta make up about half of the phylum Annelida. These worms usually have few setae (chaetae) or "bristles" on their outer body surfaces, and lack parapodia, unlike polychaeta. Diversity Oligochaetes are well-segmented worms and most have a spacious body cavity (coelom) used as a hydroskeleton. They range in length from less than up to in the 'giant' species such as the giant Gippsland earthworm (''Megascolides australis'') and the Mekong worm (''Am ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clitellate
The Clitellata are a class of annelid worms, characterized by having a clitellum - the 'collar' that forms a reproductive cocoon during part of their life cycles. The clitellates comprise around 8,000 species. Unlike the class of Polychaeta, they do not have parapodia and their heads are less developed. Characteristics Clitellate annelids are segmented worms characterised by the clitellum or girdle which is located near the head end of mature individuals. The mouth is on the ventral surface and is overhung by the prostomium (proboscis). The brain is not located in the head but in one of the body segments. The clitellum is formed by a modification of several segments, and either includes the female gonopores or is located just behind them. During copulation, this glandular tissue secretes mucus that keeps the paired individuals together while they exchange sperm. Afterwards it secretes material that forms a cocoon that encircles the animal's body and encloses the eggs and sperm. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can reproduction, produce Fertility, fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology (biology), morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a binomial nomenclature, two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specifi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limnodriloides
Limnodriloides is a genus of clitellate oligochaete worm Worms are many different distantly related bilateral animals that typically have a long cylindrical tube-like body, no limbs, and no eyes (though not always). Worms vary in size from microscopic to over in length for marine polychaete wor ...s. Species Species accepted within ''Limnodriloides'' include: * '' Limnodriloides adversus'' Erséus, 1990 * '' Limnodriloides agnes'' Hrabĕ, 1967 * '' Limnodriloides anxius'' Erséus, 1990 * '' Limnodriloides appendiculatus'' Pierantoni, 1903 * '' Limnodriloides armatus'' Erséus, 1982 * '' Limnodriloides ascensionae'' Erséus, 1982 * '' Limnodriloides atriotumidus'' Erséus, 1982 * '' Limnodriloides australis'' Erséus, 1982 * '' Limnodriloides baculatus'' Erséus, 1982 * '' Limnodriloides barnardi'' Cook, 1974 * '' Limnodriloides basilicus'' Finogenova, 1986 * '' Limnodriloides biforis'' Erséus, 1990 * '' Limnodriloides bipapillatus'' Erséus, 1984 * '' Limnodriloi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhyacodrilinae
Rhyacodrilinae is a subfamily of clitellate oligochaete worms in the family Naididae. Species The World Register of Marine Species recognizes the following genera in the subfamily Rhyacodrilinae: * ''Ainudrilus'' Finogenova, 1982 * ''Bothrioneurum'' Stolc, 1886 * ''Epirodrilus'' Hrabĕ, 1930 * '' Heronidrilus'' Erséus & Jamieson, 1981 * '' Heterodrilus'' Pierantoni, 1902 * '' Hrabeus'' Semernoy, 2004 * '' Jolydrilus'' Er. Marcus, 1965 * '' Macquaridrilus'' Jamieson, 1968 * ''Monopylephorus'' Levinsen, 1884 * '' Moraviodrilus'' Hrabě, 1935 * '' Paranadrilus'' Gavrilov, 1955 * ''Pararhyacodrilus'' Snimschikova, 1986 * '' Paupidrilus'' Erséus, 1990 * ''Peristodrilus'' Baker & Brinkhurst, 1981 * ''Protuberodrilus'' Giani & Martinez-Ansemil, 1979 * '' Rhizodrilus'' Smith, 1900 * ''Rhyacodrilus ''Rhyacodrilus'' is a genus of annelids belonging to the family Naididae. The genus has cosmopolitan distribution In biogeography, cosmopolitan distribution is the term for the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tubificidae
The Naididae (including the former family Tubificidae) are a family of clitellate oligochaete worms like the sludge worm, ''Tubifex tubifex''. They are key components of the benthic communities of many freshwater and marine ecosystems. In freshwater aquaria they may be referred to as detritus worms. Description These worms can vary in size, from centimeters to millimeters, depending on the subfamily. They are all hermaphroditic and lack a larval stage. Taxonomy Analysis of 18S rDNA sequences revealed that the tradition family Tubificidae is not monophyletic, with the traditionally circumscribed Naididae nested within tubidicid taxa. To avoid paraphyly the naidid and tubificid taxa were included in a combined family, which took the name Naididae because it has priority under ''International Code of Zoological Nomenclature'' rules as the senior synonym of Tubificidae. A proposal to the International Commission on Zoological Nomenclature to suppress Naididae, because the "tubifici ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
