|
Corhiza
''Corhiza'' is a genus of hydrozoans in the family Halopterididae Halopterididae is a family of hydrozoans. According to the World Register of Marine Species, the following genera belong to the family Halopterididae: *'' Anarthroclada'' Naumov, 1955 *'' Antennella'' Allman, 1877 *'' Antennellopsis'' Jäderhol .... Species The following species are classed in this genus: *''Corhiza bellicosa'' Millard, 1962 *''Corhiza complexa'' (Nutting, 1905) *''Corhiza fascicularis'' (Allman, 1883) *''Corhiza pannosa'' Millard, 1962 *''Corhiza pauciarmata'' Ansín Agís, Vervoort & Ramil, 2009 *'' Corhiza scotiae'' (Ritchie, 1907) *''Corhiza sociabilis'' Millard, 1980 *''Corhiza splendens'' Vervoort & Watson, 2003 *''Corhiza suensoni'' (Jäderholm, 1896) References Halopterididae Hydrozoan genera {{Leptothecata-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corhiza Scotiae
''Corhiza scotiae'', the fine hydroid, is a delicate colonial hydroid in the family Halopterididae Halopterididae is a family of hydrozoans. According to the World Register of Marine Species, the following genera belong to the family Halopterididae: *'' Anarthroclada'' Naumov, 1955 *'' Antennella'' Allman, 1877 *'' Antennellopsis'' Jäderhol .... Description Fine hydroids grow in colonies of long stems with fine brown to black branches. The colonies may grow up to 33 cm in height. The gonophores (reproductive bodies) look like small yellowish ovals, growing from the main stem of the colony. Millard, N.A.H. 1975. Monograph on the Hydroida of Southern Africa. ''Ann. S. Afr. Mus.'' 68:1-513 Distribution This colonial animal is found off the South African coast from Saldanha Bay to East London in 18-120m under water. It is endemic to this region. Ecology In this species, male and female forms live on separate colonies. Male gonophores are elongated and have blunt ends. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halopterididae
Halopterididae is a family of hydrozoans. According to the World Register of Marine Species, the following genera belong to the family Halopterididae: *'' Anarthroclada'' Naumov, 1955 *'' Antennella'' Allman, 1877 *'' Antennellopsis'' Jäderholm, 1896 *'' Astrolabia'' Naumov, 1955 *''Calvinia'' Nutting, 1900 *'' Cladoplumaria'' Ansin Agis, Ramil & Vervoort, 2004 *'' Corhiza'' Millard Millard may refer to: __NOTOC__ Places in the United States * Millard, Missouri, a village * Millard, Omaha, Nebraska, a former suburb and present-day neighborhood of Omaha * Millard Creek, Pennsylvania * Millard County, Utah * Millard, Virginia, an ..., 1962 *'' Diplopteroides'' Peña Cantero & Vervoort, 1999 *'' Gattya'' Allman, 1885 *'' Halopteris'' Allman, 1877 *'' Monostaechas'' Allman, 1877 *'' Nuditheca'' Nutting, 1900 *'' Pentatheca'' Naumov, 1955 *'' Polyplumaria'' Sars, 1874 References Plumularioidea Cnidarian families {{Leptothecata-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrozoan
Hydrozoa (hydrozoans; ) are a taxonomic class of individually very small, predatory animals, some solitary and some colonial, most of which inhabit saline water. The colonies of the colonial species can be large, and in some cases the specialized individual animals cannot survive outside the colony. A few genera within this class live in freshwater habitats. Hydrozoans are related to jellyfish and corals and belong to the phylum Cnidaria. Some examples of hydrozoans are the freshwater jelly (''Craspedacusta sowerbyi''), freshwater polyps ('' Hydra''), ''Obelia'', Portuguese man o' war (''Physalia physalis''), chondrophores (Porpitidae), "air fern" (''Sertularia argentea''), and pink-hearted hydroids (''Tubularia''). Anatomy Most hydrozoan species include both a polypoid and a medusoid stage in their lifecycles, although a number of them have only one or the other. For example, ''Hydra'' has no medusoid stage, while '' Liriope'' lacks the polypoid stage. Polyps The hydroid fo ... [...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] |
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] |
