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Gymnura Australis
The Australian butterfly ray (''Gymnura australis'') is a species of butterfly ray, family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ... Gymnuridae. References * Gymnura Fish described in 1886 {{rajiformes-stub ... [...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] |
Butterfly Ray
The butterfly rays are the rays forming the genus ''Gymnura'' and the family Gymnuridae. They are found in warm oceans worldwide, and occasionally in estuaries. The body of butterfly rays is flattened and surrounded by an extremely broad disc formed by the pectoral fins, which merge in front of the head. They have a very short, thread-like, tail. They are up to in width. McEachran ''et al.'' place the butterfly rays in the subfamily Gymnurinae of the family Dasyatidae, but this article follows FishBase and ITIS in treating them as a family. Species There are currently 12 species in this genus (others are considered synonyms): * '' Gymnura altavela'' (Linnaeus, 1758) – Spiny butterfly ray * '' Gymnura australis'' ( E. P. Ramsay & Ogilby, 1886) – Australian butterfly ray * '' Gymnura crebripunctata'' ( W. K. H. Peters, 1869) – Longsnout butterfly ray * '' Gymnura japonica'' (Temminck & Schlegel, 1850) – Japanese butterfly ray * '' Gymnura marmorata'' ( J. G. Cooper ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gymnura
The butterfly rays are the rays forming the genus ''Gymnura'' and the family Gymnuridae. They are found in warm oceans worldwide, and occasionally in estuaries. The body of butterfly rays is flattened and surrounded by an extremely broad disc formed by the pectoral fins, which merge in front of the head. They have a very short, thread-like, tail. They are up to in width. McEachran ''et al.'' place the butterfly rays in the subfamily Gymnurinae of the family Dasyatidae, but this article follows FishBase and ITIS in treating them as a family. Species There are currently 12 species in this genus (others are considered synonyms): * '' Gymnura altavela'' (Linnaeus, 1758) – Spiny butterfly ray * '' Gymnura australis'' ( E. P. Ramsay & Ogilby, 1886) – Australian butterfly ray * '' Gymnura crebripunctata'' ( W. K. H. Peters, 1869) – Longsnout butterfly ray * '' Gymnura japonica'' (Temminck & Schlegel, 1850) – Japanese butterfly ray * ''Gymnura marmorata'' ( J. G. Cooper, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
