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Brissus Gigas
''Brissus gigas'', also known as the giant heart urchin, is a species of sea urchins of the family Brissidae. Their armour is covered with spines. ''Brissus gigas'' was first scientifically described in 1947 by H.B. Fell.Kroh, A. (2010). ''Brissus gigas'' (H.B. Fell, 1947). In: Kroh, A. & Mooi, R. (2010World Echinoidea Database at the World Register of Marine Species. Description Most documented specimens of ''Brissus gigas'' range between 50–190mm in length, however the largest specimen of ''Brissus gigas'' was collected off the coast of Great Mercury Island in 2009, measuring 193mm. Distribution Specimens of this species have been found around the north and north-east coast of the North Island, from Manawatāwhi / Three Kings Islands down to Great Mercury Island. ''Brissus gigas'' is found in sandy or muddy burrows close to coasts, in the sublittoral zone. Between 1982-3, deoxidisation from a plankton bloom of ''Cerataulina pelagica'' caused mass deaths of the species in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Test (biology)
In biology, a test is the hard Seashell, shell of some spherical aquatic animals and protists, notably sea urchins and microorganisms such as testate foraminiferans, radiolarians, and testate amoebae. The term is also applied to the covering of scale insects. The related Latin term testa (botany), testa is used for the outer layer of the hard seed coat of plant seeds. Etymology The anatomical term "test" derives from the Latin word ''wikt:testa#Latin, testa'', which refers to an earthenware object, for example, a piece of pottery, a tile, or a potshard, and by extension, the mollusc shell, shell of a mollusc or a skull. Structure The test is a skeletal structure, made of hard material such as calcium carbonate, silica, chitin or composite materials. As such, it allows the protection of the internal organs and the attachment of soft flesh. The structure is notable for its Ambulacral, ambulacra, alternating in wide and narrow patterns. Small serrations, bumps, ridges or th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Urchin
Sea urchins or urchins () are echinoderms in the class (biology), class Echinoidea. About 950 species live on the seabed, inhabiting all oceans and depth zones from the intertidal zone to deep seas of . They typically have a globular body covered by a spine (zoology), spiny protective test (biology), tests (hard shells), typically from across. Sea urchins move slowly, crawling with their tube feet, and sometimes pushing themselves with their spines. They feed primarily on algae but also eat slow-moving or sessility (motility), sessile animals such as crinoids and sponges. Their predators include sharks, sea otters, starfish, wolf eels, and triggerfish. Like all echinoderms, adult sea urchins have pentagonal symmetry with their Echinoderm#Larval development, pluteus larvae featuring Bilateral symmetry, bilateral (mirror) symmetry; The latter indicates that they belong to the Bilateria, along with chordates, arthropods, annelids and molluscs. Sea urchins are found in every ocea ... [...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] |
Brissidae
Brissidae is a family of echinoderms belonging to the order Spatangoida. Genera Genera: * '' Anabrissus'' Mortensen, 1950 * '' Anametalia'' Mortensen, 1950 * '' Brissalius'' Coppard, 2008 * ''Brissopsis ''Brissopsis'' is a genus of echinoderms belonging to the family Brissidae. The genus has almost cosmopolitan distribution. Species: *''Brissopsis alta'' *''Brissopsis atlantica'' *''Brissopsis bengalensis'' *''Brissopsis caparti'' *''Bris ...'' L. Agassiz, 1840 * '' Brissus'' Gray, 1825 References Spatangoida Echinoderm families {{echinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Register Of Marine Species
The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive catalogue and list of names of marine organisms. Content The content of the registry is edited and maintained by scientific specialists on each group of organism. These taxonomists control the quality of the information, which is gathered from the primary scientific literature as well as from some external regional and taxon-specific databases. WoRMS maintains valid names of all marine organisms, but also provides information on synonyms and invalid names. It is an ongoing task to maintain the registry, since new species are constantly being discovered and described by scientists; in addition, the nomenclature and taxonomy of existing species is often corrected or changed as new research is constantly being published. Subsets of WoRMS content are made available, and can have separate badging and their own home/launch pages, as "subregisters", such as th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Mercury Island
The Mercury Islands are a group of seven islands off the northeast coast of New Zealand's North Island. They are located off the coast of the Coromandel Peninsula, and northeast of the town of Whitianga. History Great Mercury Island (Ahuahu) was occupied by both early Māori and Pākehā. A settler claimed to have bought Great Mercury Island in 1839. Great Mercury (Ahuahu), Kawhitu or Stanley Island and Double Island (Moturehu) were purchased and taken as crown land in 1858–65. These included Whakakapua (73 acres) and Kowhaka (21 acres) being purchased in January 1865. Despite inhabiting Ahuahu, the Ngati Hei were not consulted about this purchase. A 2017 settlement recognized the Ngāti Hei as having a legitimate claim to Great Mercury Island. Description The main chain of the Mercury Islands consists of the large Great Mercury Island (also known as ) to the west, Red Mercury Island () to the east, and five much smaller islands between the two (Korapuki, Green, Atiu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Island
The North Island ( , 'the fish of Māui', historically New Ulster) is one of the two main islands of New Zealand, islands of New Zealand, separated from the larger but less populous South Island by Cook Strait. With an area of , it is the List of islands by area, world's 14th-largest island, constituting 43% of New Zealand's land area. It has a population of which is % of New Zealand's residents, making it the most populous island in Polynesia and the List of islands by population, 28th-most-populous island in the world. Twelve main urban areas (half of them officially cities) are in the North Island. From north to south, they are Whangārei, Auckland, Hamilton, New Zealand, Hamilton, Tauranga, Rotorua, Gisborne, New Zealand, Gisborne, New Plymouth, Napier, New Zealand, Napier, Hastings, New Zealand, Hastings, Whanganui, Palmerston North, and New Zealand's capital city Wellington, which is located at the south-west tip of the island. Naming and usage The island has been known ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manawatāwhi / Three Kings Islands
The Manawatāwhi / Three Kings Islands (Manawatāwhi is also the Māori language, Māori name for the largest island) are a group of 13 uninhabited islands about northwest of Cape Reinga / Te Rerenga Wairua, New Zealand, where the Pacific Ocean, South Pacific Ocean and Tasman Sea converge. They measure in area. The islands are on a submarine plateau, the Three Kings Bank, and are separated from the New Zealand mainland by an 8 km wide, 200 to 300 m deep submarine trough. Therefore, despite relative proximity to the mainland, the islands are listed with the New Zealand Outlying Islands. The islands are an immediate part of New Zealand, but not part of any Regions of New Zealand, region or Territorial Authorities of New Zealand, district, but instead ''Area Outside Territorial Authority'', like all the other outlying islands except the Solander Islands. History During the Last Glacial Maximum when sea levels were over 100 metres lower than present day levels, most offsho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sublittoral Zone
The neritic zone (or sublittoral zone) is the relatively shallow part of the ocean above the drop-off of the continental shelf, approximately in depth. From the point of view of marine biology it forms a relatively stable and well-illuminated environment for marine life, from plankton up to large fish and corals, while physical oceanography sees it as where the oceanic system interacts with the coast. Definition (marine biology), context, extra terminology In marine biology, the neritic zone, also called coastal waters, the coastal ocean or the sublittoral zone, refers to the zone of the ocean where sunlight reaches the ocean floor, that is, where the water is never so deep as to take it out of the photic zone. It extends from the low tide mark to the edge of the continental shelf, with a relatively shallow depth extending to about 200 meters (660 feet). Above the neritic zone lie the intertidal (or eulittoral) and supralittoral zones; below it the continental slope begi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hauraki Gulf
The Hauraki Gulf / Tīkapa Moana is a coastal feature of the North Island of New Zealand. It has an area of 4000 km2, Zeldisl, J. R. et al. (1995) Salp grazing: effects on phytoplankton abundance, vertical distribution and taxonomic composition in a coastal habitat. Marine Ecology Progress Series, Vol. 126, p 267-283 and lies between, in anticlockwise order, the , the Hauraki Plains, the Coromandel Peninsula, and |
Animals Described In 1947
Animals are multicellular, eukaryotic organisms in the biological kingdom Animalia (). With few exceptions, animals consume organic material, breathe oxygen, have myocytes and are able to move, can reproduce sexually, and grow from a hollow sphere of cells, the blastula, during embryonic development. Animals form a clade, meaning that they arose from a single common ancestor. Over 1.5 million living animal species have been described, of which around 1.05 million are insects, over 85,000 are molluscs, and around 65,000 are vertebrates. It has been estimated there are as many as 7.77 million animal species on Earth. Animal body lengths range from to . They have complex ecologies and interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology, and the study of animal behaviour is known as ethology. The animal kingdom is divided into five major clades, namely Porifera, Ctenophora, Placozoa, Cni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brissus
''Brissus'' is a genus of sea urchins belonging to the family Brissidae. The genus has cosmopolitan distribution. Species: *'' Brissus agassizii'' *'' Brissus bridgeboronensis'' *'' Brissus camagueyensis'' *'' Brissus caobaense'' *'' Brissus duperieri'' *'' Brissus durhami'' *'' Brissus eximius'' *'' Brissus expansus'' *'' Brissus fosteri'' *'' Brissus gigas'' *'' Brissus glenni'' *'' Brissus greifatensis'' *'' Brissus inaequalis'' *'' Brissus kewi'' *'' Brissus lasti'' *''Brissus latecarinatus ''Brissus latecarinatus'' is a species of sea urchins of the family Brissidae. Its armour is covered with spines. ''Brissus latecarinatus'' was first scientifically described in 1778 by Nathanael Gottfried Leske. Distribution It is distribut ...'' *'' Brissus latidunensis'' *'' Brissus meridionalis'' *'' Brissus miocaenicus'' *'' Brissus obesus'' *'' Brissus rana'' *'' Brissus sagrae'' *'' Brissus shaimaae'' *'' Brissus unicolor'' References {{Taxonbar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
