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John Treadwell Nichols
John Treadwell Nichols (June 11, 1883 – November 10, 1958) was an American ichthyologist and ornithologist. Life and career Nichols was born in Jamaica Plain, Boston, Massachusetts, the son of Mary Blake (Slocum) and John White Treadwell Nichols. In 1906 he studied vertebrate zoology at Harvard College, where he graduated with a Bachelor of Arts (AB). In 1907 he joined the American Museum of Natural History as assistant in the department of mammalogy. In 1913 he founded ''Copeia'', the official journal of the American Society of Ichthyologists and Herpetologists The American Society of Ichthyologists and Herpetologists (ASIH) is an international learned society devoted to the scientific studies of ichthyology (study of fish) and herpetology (study of reptiles and amphibians). The primary emphases of the .... In 1916 he described the long lost Bermuda petrel together with Louis L. Mowbray, Louis Leon Arthur Mowbray who first sighted this bird within a flock of other petrel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of 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 produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, 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 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 specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyprinid
Cyprinidae is a family of freshwater fish commonly called the carp or minnow family. It includes the carps, the true minnows, and relatives like the barbs and barbels. Cyprinidae is the largest and most diverse fish family and the largest vertebrate animal family in general with about 3,000 species, of which only 1,270 remain extant, divided into about 370 genera. Cyprinids range from about 12 mm in size to the giant barb (''Catlocarpio siamensis''). By genus and species count, the family makes up more than two-thirds of the ostariophysian order Cypriniformes. The family name is derived from the Greek word ( 'carp'). Biology and ecology Cyprinids are stomachless fish with toothless jaws. Even so, food can be effectively chewed by the gill rakers of the specialized last gill bow. These pharyngeal teeth allow the fish to make chewing motions against a chewing plate formed by a bony process of the skull. The pharyngeal teeth are unique to each species and are used by scient ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microphysogobio
''Microphysogobio'' is a genus of freshwater fish in the family (biology), family Cyprinidae native to East Asia. Species There are currently 28 recognized species in this genus: * ''Microphysogobio alticorpus'' Petru Mihai Bănărescu, Bănărescu & Teodor T. Nalbant, Nalbant, 1968 * ''Microphysogobio amurensis'' (Anatoly Yakovlevich Taranetz, Taranetz, 1937) (Amur longnose gudgeon) * ''Microphysogobio anudarini'' Juraj Holčík, Holčík & Karel Pivnička, Pivnička, 1969 * ''Microphysogobio brevirostris'' (Albert Karl Ludwig Gotthilf Günther, Günther, 1868) * ''Microphysogobio chinssuensis'' (John Treadwell Nichols, Nichols, 1926) * ''Microphysogobio elongatus'' (Yao & Yang, 1977) * ''Microphysogobio fukiensis'' (John Treadwell Nichols, Nichols, 1926) * ''Microphysogobio hsinglungshanensis'' Tamezo Mori, T. Mori, 1934 * ''Microphysogobio jeoni'' Kim Ik-Soo, I. S. Kim & Yang Hyun, H. Yang, 1999 * ''Microphysogobio kachekensis'' (Masamitsu Ōshima, Ōshima, 1926) * ''Microphys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
