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Depastromorpha Africana
The stalked trumpet jelly (''Depastromorpha africana)'', is a species of stalked jellyfish in the family Depastridae. It is the only member of the genus ''Depastromorpha''. Description This small stalked jellyfish grows up to 2 cm in height and may be pale to reddish in colour. It has a wrinkled body column and multiple stalked tentacles with knobbed ends surrounding the mouth.Jones, Georgina. ''A field guide to the marine animals of the Cape Peninsula.'' SURG, Cape Town, 2008. Distribution This species has been found only around the South African coast from the Cape Peninsula to Hermanus from the shore to shallow subtidal. It is possibly endemic to this region. Ecology This stalked jelly is usually found on seaweeds, particularly ''Caulerpa filiformis ''Caulerpa filiformis'' is a species of seaweed in the ''Caulerpaceae'' family. It has been recorded at coastal sites in Australia and South Africa. References Caulerpa, filiformis Protists described in 1841 Chloroph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
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. It is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. Other ways of defining species include their karyotype, DNA sequence, morphology (biology), morphology, behaviour, or ecological niche. In addition, palaeontologists 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. About 14% of these had been described by 2011. All species (except viruses) are given a binomial nomenclature, two-part name, a "binomen". The first part of a binomen is the name of a genus to which the species belongs. The second part is called the specific name (zoology), specific name or the specific ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stauromedusae
Stauromedusae are the stalked jellyfishes. They are the sole living members of the class Staurozoa and belong to the medusozoa subphylum of Cnidaria. They are unique among medusa jellyfish in that they do not have an alternation of polyp and medusa life cycle phases, but are instead interpreted as an attached medusa stage, with a lifestyle more resembling that of polypoid forms. They have a generally trumpet-shaped body, oriented upside-down in comparison with other jellyfish, with the tentacles projecting upwards, and the stalk located in the centre of the umbrella. Stauromedusae usually has eight marginal arms at the top of the calyx. They reach their adult sizes within several weeks, typically 1 to 4 centimeters in length. Members of this class are commonly found in relatively cold waters, close to the shoreline. However, there are a few known species that inhabit tropical and subtropical waters as referenced in the Stauromedusae article by Claudia E. Mills and Yayoi M. Hiran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family (, : ) 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". The delineation of what constitutes a family—or whether a described family should be acknowledged—is established and decided upon by active taxonomists. There are not strict regulations for outlining or acknowledging a family, yet in the realm of plants, these classifications often rely on both the vegetative and reproductive characteristics of plant species. Taxonomists frequently hold varying perspectives on these descriptions, leading to a lack of widespread consensus within the scientific community ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Depastridae
Haliclystidae is a family of stalked jellyfish in the order Stauromedusae. Gallery File:Haliclystus stejnegeri 1.jpg, ''Haliclystus sp.'' File:Haliclystus antarcticus 1C.jpg, ''Haliclystus antarcticus'' File: Haliclystus_octoradiatus_-_Becherqualle_an_Seegras.jpg , '' Haliclystus octoradiatus'' File: Green subum.jpg, ''Haliclystus sanjuanensis'' File:6 or-Manania handi.tif, ''Manania handi'' File:Stalked jelly1.jpg, '' Depastromorpha africana'' Genera and species According to the World Register of Marine Species, the following genera and species are found in this family: *'' Depastromorpha'' Carlgren, 1935 **'' Depastromorpha africana'' Carlgren, 1935 *''Depastrum'' Gosse, 1858 **''Depastrum cyathiforme'' (M. Sars, 1846) *'' Haliclystus'' James-Clark, 1863 **''Haliclystus antarcticus'' Pfeffer, 1889 **'' Haliclystus auricula'' James-Clark, 1863 **'' Haliclystus borealis'' Uchida, 1933 **'' Haliclystus californiensis'' Kahn, Matsumoto, Hirano & Collins, 2010 **'' Haliclystus ina ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. 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 of an ancestral taxon are grouped together (i.e. Phylogeneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemism
Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can also be referred to as an ''endemism'' or, in scientific literature, as an ''endemite''. Similarly, many species found in the Western ghats of India are examples of endemism. Endemism is an important concept in conservation biology for measuring biodiversity in a particular place and evaluating the risk of extinction for species. Endemism is also of interest in evolutionary biology, because it provides clues about how changes in the environment cause species to undergo range shifts (potentially expanding their range into a larger area or b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caulerpa Filiformis
''Caulerpa filiformis'' is a species of seaweed in the ''Caulerpaceae'' family. It has been recorded at coastal sites in Australia and South Africa. References Caulerpa, filiformis Protists described in 1841 Chlorophyta species {{Ulvophyceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haliclystidae
Haliclystidae is a family (biology), family of stalked jellyfish in the order Stauromedusae. Gallery File:Haliclystus stejnegeri 1.jpg, ''Haliclystus sp.'' File:Haliclystus antarcticus 1C.jpg, ''Haliclystus antarcticus'' File: Haliclystus_octoradiatus_-_Becherqualle_an_Seegras.jpg , ''Haliclystus octoradiatus'' File: Green subum.jpg, ''Haliclystus sanjuanensis'' File:6 or-Manania handi.tif, ''Manania handi'' File:Stalked jelly1.jpg, ''Depastromorpha africana'' Genera and species According to the World Register of Marine Species, the following genus, genera and species are found in this family: *''Depastromorpha'' Carlgren, 1935 **''Depastromorpha africana'' Carlgren, 1935 *''Depastrum'' Gosse, 1858 **''Depastrum cyathiforme'' (M. Sars, 1846) *''Haliclystus'' James-Clark, 1863 **''Haliclystus antarcticus'' Pfeffer, 1889 **''Haliclystus auricula'' James-Clark, 1863 **''Haliclystus borealis'' Uchida, 1933 **''Haliclystus californiensis'' Kahn, Matsumoto, Hirano & Collins, 2010 **' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
