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Desmoscolecida
Desmoscolecida is an order of marine nematodes. In a worm of this order, the body tapers towards each end and is marked by a number of well-defined ridges. Their number varies in the different species. The head bears four movable setae, and some of the ridges bear a pair either dorsally or ventrally. Two pigment spots between the fourth and fifth ridges are regarded as eyes. The Desmoscolecida move by looping their bodies like geometrid caterpillars or leeches, as well as by creeping on their setae. The mouth is terminal, and leads into a muscular oesophagus which opens into a straight intestine terminating in an anus, which is said to be dorsal in position. The sexes are distinct. The testis is single, and its duct opens into the intestine and is provided with two chitinous spicules. The ovary is also single, opening independently and anterior to the anus. The nervous system is as yet unknown. Genera include '' Desmoscolex'', '' Greeffiella'', and '' Tricoma''. References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Desmoscolecidae
Desmoscolecidae is a family of nematodes belonging to the order Desmoscolecida Desmoscolecida is an order of marine nematodes. In a worm of this order, the body tapers towards each end and is marked by a number of well-defined ridges. Their number varies in the different species. The head bears four movable setae, and some .... Genera Genera: * '' Antarcticonema'' Timm, 1978 * '' Calligyrus'' Lorenzen, 1969 * '' Demanema'' Timm, 1970 References {{Taxonbar, from=Q4140960 Nematodes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chromadorea
The Chromadorea are a class of the roundworm phylum, Nematoda. They contain a single subclass (Chromadoria) and several orders. With such a redundant arrangement, the Chromadoria are liable to be divided if the orders are found to form several clades, or abandoned if they are found to constitute a single radiation. Formerly, they were treated as a subclass in the paraphyletic " Adenophorea" assemblage, which has been mostly abandoned by modern authors. It is also suspected that the Chromadorea may not be monophyletic as delimited here; at least the Monhysterida seem to be a distinct and far more ancient lineage than the rest. Members of this class' bodies usually have annules, their amphids elaborate and spiral, and they all have three esophageal glands. They usually live in marine sediments, although they can live elsewhere. They have a more sophisticated pharynx than most roundworms. Members of this class can be identified by the presence of eight conserved signature inde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chromadoria
The Chromadorea are a class of the roundworm phylum, Nematoda. They contain a single subclass (Chromadoria) and several orders. With such a redundant arrangement, the Chromadoria are liable to be divided if the orders are found to form several clades, or abandoned if they are found to constitute a single radiation. Formerly, they were treated as a subclass in the paraphyletic " Adenophorea" assemblage, which has been mostly abandoned by modern authors. It is also suspected that the Chromadorea may not be monophyletic as delimited here; at least the Monhysterida seem to be a distinct and far more ancient lineage than the rest. Members of this class' bodies usually have annules, their amphids elaborate and spiral, and they all have three esophageal glands. They usually live in marine sediments, although they can live elsewhere. They have a more sophisticated pharynx than most roundworms. Members of this class can be identified by the presence of eight conserved signature inde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyartonematidae
Cyartonematidae is a family of nematodes belonging to the order Desmoscolecida Desmoscolecida is an order of marine nematodes. In a worm of this order, the body tapers towards each end and is marked by a number of well-defined ridges. Their number varies in the different species. The head bears four movable setae, and some .... Genera: * '' Cyartonema'' Cobb, 1920 * '' Cyartonemoides'' Thanh & Gagarin, 2011 * '' Paraterschellingia'' Kreis, 1935 References {{Taxonbar, from=Q60409930 Nematodes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eophasmidae
''Eophasma'' is a genus of fossil nematodes from the Jurassic of Osteno in Lombardy, Italy. It has only one species, ''Eophasma jurasicum''. In 2011, the genus was placed in the new family Eophasmidae Poinar, 2011, which is itself placed in the order Desmoscolecida Desmoscolecida is an order of marine nematodes. In a worm of this order, the body tapers towards each end and is marked by a number of well-defined ridges. Their number varies in the different species. The head bears four movable setae, and some ..., superfamily Desmoscolecoidea. References †Eophasma Prehistoric protostome genera Jurassic invertebrates Fossils of Italy {{nematode-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meyliidae
Meyliidae is a family of nematodes belonging to the order Desmoscolecida. Genera: * '' Boucherius'' Decraemer & Jensen, 1981 * ''Erebus In Greek mythology, Erebus (; grc, Ἔρεβος, Érebos, "deep darkness, shadow".), or Erebos, is the personification of darkness and one of the primordial deities. Hesiod's ''Theogony'' identifies him as one of the first five beings in exis ...'' Bussau * '' Erebussau'' Bezerra, Pape, Hauquier & Vanreusel, 2021 * '' Gerlachius'' Andrássy, 1976 * '' Meylia'' Gerlach, 1956 * '' Noffsingeria'' Decraemer & Jensen, 1981 References {{Taxonbar, from=Q10583642 Nematodes ... [...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] |
Archiv Für Naturgeschichte
''Archiv für Naturgeschichte'' was a German-language journal for natural history. It was founded by A. F. A. Wiegmann in 1835. The journal was published in Berlin from 1835 to 1926. There were 92 published volumes. From 1912 to 1926 each volume was published in two sections, namely, ''Abteilung A: Original-Arbeiten'' & ''Abteilung B: Jahres-Berichte''. ''Abteilung A'' (''i.e.'' Section A) published original articles on zoology. ''Abteilung B'' (''i.e.'' Section B) published yearly reports on zoological articles published in the preceding year. References External linksArchiv für Naturgeschichte , Hathi Trust Digital Library * [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richard Greeff
Richard Greeff (14 March 1829, Elberfeld – 30 August 1892, Marburg) was a German zoologist. He studied medicine in Würzburg, Heidelberg and Berlin, receiving his medical doctorate in 1857. Following graduation, he worked as a hospital assistant in Danzig, returning to Elberfeld in 1859 as a physician. Soon afterwards he quit his medical practice in favor of zoological research, subsequently obtaining his habilitation for zoology at the University of Bonn in 1863. In 1871 he succeeded Carl Friedrich Wilhelm Claus as professor of zoology and comparative anatomy at the University of Marburg.ADB:Greeff, Richard @ Allgemeine Deutsche Biographie [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paolo Panceri
Paolo Panceri (1833, in Milan – 1877, in Naples) was an Italian naturalist. Panceri graduated in medicine at the University of Pavia where he began his research. In 1861 he took the Chair of Comparative anatomy at the University of Naples, where he directed the Zoology Museum. Panceri was cautious about the scientific validity of evolutionary theories but was instrumental in the foundation of the Stazione Zoologica Anton Dohrn (Dohrn was a Darwinian). His findings on the bioluminescence of marine invertebrates and studies of ''Amphioxus'' led to fame in Italy and abroad. In 1874 he sold his books and scientific papers to Biblioteca Universitaria di Napoli to pay for an expedition to Egypt. They constitute an example of a nineteenth-century library specializing in the natural sciences and comparative anatomy. His students in Naples include Carlo Emery Carlo Emery (25 October 1848, Naples – 11 May 1925) was an Italian entomologist. He is remembered for Emery's rule, whi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
