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Haloclava
''Haloclava'' is a genus of sea anemones in the family Haloclavidae Haloclavidae is a family of sea anemones. Members of the family are found worldwide and many live largely buried in soft substrates with only their oral disc and tentacles protruding. Characteristics Members of this family mostly have elongated .... Members of this genus typically burrow into soft sediment. Species The following species are listed by the World Register of Marine Species: *'' Haloclava brevicornis'' (Stimpson, 1856) *'' Haloclava capensis'' (Verrill, 1865) *'' Haloclava chinensis'' Carlgren, 1931 *'' Haloclava producta'' (Stimpson, 1856) *'' Haloclava stimpsoni'' (Verrill, 1868) References Haloclavidae Hexacorallia genera {{actiniaria-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haloclava Capensis
''Haloclava'' is a genus of sea anemones in the family Haloclavidae Haloclavidae is a family of sea anemones. Members of the family are found worldwide and many live largely buried in soft substrates with only their oral disc and tentacles protruding. Characteristics Members of this family mostly have elongated .... Members of this genus typically burrow into soft sediment. Species The following species are listed by the World Register of Marine Species: *'' Haloclava brevicornis'' (Stimpson, 1856) *'' Haloclava capensis'' (Verrill, 1865) *'' Haloclava chinensis'' Carlgren, 1931 *'' Haloclava producta'' (Stimpson, 1856) *'' Haloclava stimpsoni'' (Verrill, 1868) References Haloclavidae Hexacorallia genera {{actiniaria-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haloclava Brevicornis
''Haloclava'' is a genus of sea anemones in the family Haloclavidae. Members of this genus typically burrow into soft sediment. Species The following species are listed by the World Register of Marine Species: *'' Haloclava brevicornis'' (Stimpson, 1856) *''Haloclava capensis ''Haloclava'' is a genus of sea anemones in the family Haloclavidae Haloclavidae is a family of sea anemones. Members of the family are found worldwide and many live largely buried in soft substrates with only their oral disc and tentacles pro ...'' (Verrill, 1865) *'' Haloclava chinensis'' Carlgren, 1931 *'' Haloclava producta'' (Stimpson, 1856) *'' Haloclava stimpsoni'' (Verrill, 1868) References Haloclavidae Hexacorallia genera {{actiniaria-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haloclava Chinensis
''Haloclava'' is a genus of sea anemones in the family Haloclavidae. Members of this genus typically burrow into soft sediment. Species The following species are listed by the World Register of Marine Species: *''Haloclava brevicornis'' (Stimpson, 1856) *''Haloclava capensis ''Haloclava'' is a genus of sea anemones in the family Haloclavidae Haloclavidae is a family of sea anemones. Members of the family are found worldwide and many live largely buried in soft substrates with only their oral disc and tentacles pro ...'' (Verrill, 1865) *'' Haloclava chinensis'' Carlgren, 1931 *'' Haloclava producta'' (Stimpson, 1856) *'' Haloclava stimpsoni'' (Verrill, 1868) References Haloclavidae Hexacorallia genera {{actiniaria-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haloclava Stimpsoni
''Haloclava'' is a genus of sea anemones in the family Haloclavidae. Members of this genus typically burrow into soft sediment. Species The following species are listed by the World Register of Marine Species: *''Haloclava brevicornis'' (Stimpson, 1856) *''Haloclava capensis'' (Verrill, 1865) *''Haloclava chinensis ''Haloclava'' is a genus of sea anemones in the family Haloclavidae. Members of this genus typically burrow into soft sediment. Species The following species are listed by the World Register of Marine Species: *''Haloclava brevicornis'' (Stimps ...'' Carlgren, 1931 *'' Haloclava producta'' (Stimpson, 1856) *'' Haloclava stimpsoni'' (Verrill, 1868) References Haloclavidae Hexacorallia genera {{actiniaria-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haloclava Producta
''Haloclava producta'' is a species of sea anemone in the family Haloclavidae, commonly known as the ghost anemone. This species is native to shallow water in the northwestern Atlantic Ocean, between Cape Hatteras and the Bay of Fundy, where it makes a temporary burrow in soft sediment. It is found on sand flats, both intertidally and subtidally. Description ''H. producta'' has an elongated column up to in length and an oral disc surrounded by a whorl of about twenty short, knobbed tentacles. The column has a very thin body wall and is studded with about twenty rows of hollow blisters; it makes up most of this anemone's surface area. At the base of the column, the pedal disc is modified into a "physa", an inflatable digging organ. Biology The water in the shallows where ''H. producta'' lives is sometimes low in oxygen. Under these conditions, the sea anemone extends its column and tentacles, perhaps to expose the largest possible area of epidermis to the water to increase oxygen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haloclavidae
Haloclavidae is a family of sea anemones. Members of the family are found worldwide and many live largely buried in soft substrates with only their oral disc and tentacles protruding. Characteristics Members of this family mostly have elongated columns which are often differentiated into different regions. The column is either smooth or has tubercles or suckers on its surface. The base is often rounded and used for digging but in some species it is flattened and adhesive to small objects. There is usually no sphincter but when one is present, it is endodermal. The tentacles are short and there are seldom more than 48, arranged cyclically. The mesenteries or internal tissue walls are few. There are no muscles attaching them to the basal disc but they do have strong retractor muscles. At least six pairs of the mesenteries are perfect, reaching from the base as far as the actinopharynx or throat of the anemone. There is a single, well defined siphonoglyph The siphonoglyph is a ciliat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Addison Emery Verrill
Addison Emery Verrill (February 9, 1839 – December 10, 1926) was an American invertebrate zoologist, museum curator and university professor. Life Verrill was born on February 9, 1839 in Greenwood, Maine, the son of George Washington Verrill and Lucy (Hillborn) Verrill. As a boy he showed an early interest in natural history, building collections of rocks and minerals, plants, shells, insects and other animals. When he moved with his family to Norway, Maine at age fourteen he attended secondary school at the Norway Liberal Institute. Verrill started college in 1859 at Harvard University and studied under Louis Agassiz. He graduated in 1862 with a B.A. He went on scientific collecting trips with Alpheus Hyatt and Nathaniel Shaler in the summer of 1860 to Trenton Point, Maine and Mount Desert Island and in the summer of 1861 to Anticosti Island and Labrador. In 1864 Verrill made reports on mining, or prospective mining, properties in New Hampshire, New York, and Pennsylvania. Tw ... [...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] |
Sea Anemone
Sea anemones are a group of predation, predatory marine invertebrates of the order (biology), order Actiniaria. Because of their colourful appearance, they are named after the ''Anemone'', a terrestrial flowering plant. Sea anemones are classified in the phylum Cnidaria, class Anthozoa, subclass Hexacorallia. As cnidarians, sea anemones are related to corals, jellyfish, tube-dwelling anemones, and ''hydra (genus), Hydra''. Unlike jellyfish, sea anemones do not have a Jellyfish#Life history and behavior, medusa stage in their life cycle. A typical sea anemone is a single polyp (zoology), polyp attached to a hard surface by its base, but some species live in soft sediment, and a few float near the surface of the water. The polyp has a columnar trunk topped by an oral disc with a ring of tentacles and a central mouth. The tentacles can be retracted inside the body cavity or expanded to catch passing prey. They are armed with cnidocytes (stinging cells). In many species, additional n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
