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Sepia Angulata
''Sepia angulata'' is a species of cuttlefish native to the southeastern Atlantic Ocean, from Bloubergstrand () to Still Bay (). It is known only from cuttlebones.Reid, A., P. Jereb, & C.F.E. Roper 2005. Family Sepiidae. ''In:'' P. Jereb & C.F.E. Roper, eds. ''Cephalopods of the world. An annotated and illustrated catalogue of species known to date. Volume 1. Chambered nautiluses and sepioids (Nautilidae, Sepiidae, Sepiolidae, Sepiadariidae, Idiosepiidae and Spirulidae)''. FAO Species Catalogue for Fishery Purposes. No. 4, Vol. 1. Rome, FAO. pp. 57–152. The validity of ''S. angulata'' has been questioned. Cuttlebones of this species are up to 75 mm in length. The type specimen was collected near Bloubergstrand, South Africa () and is deposited at the South African Museum The Iziko South African Museum is a South African national museum located in Cape Town. The museum was founded in 1825, the first in the country. It has been on its present site in the Company's Gard ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cuttlefish
Cuttlefish or cuttles are marine molluscs of the order Sepiida. They belong to the class Cephalopoda which also includes squid, octopuses, and nautiluses. Cuttlefish have a unique internal shell, the cuttlebone, which is used for control of buoyancy. Cuttlefish have large, W-shaped pupils, eight arms, and two tentacles furnished with denticulated suckers, with which they secure their prey. They generally range in size from , with the largest species, the giant cuttlefish (''Sepia apama''), reaching in mantle length and over in mass. Cuttlefish eat small molluscs, crabs, shrimp, fish, octopus, worms, and other cuttlefish. Their predators include dolphins, sharks, fish, seals, seabirds, and other cuttlefish. The typical life expectancy of a cuttlefish is about 1–2 years. Studies are said to indicate cuttlefish to be among the most intelligent invertebrates. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atlantic Ocean
The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth#Surface, Earth's surface and about 29% of its water surface area. It is known to separate the "Old World" of Africa, Europe and Asia from the "New World" of the Americas in the European perception of Earth, the World. The Atlantic Ocean occupies an elongated, S-shaped basin extending longitudinally between Europe and Africa to the east, and North America, North and South America to the west. As one component of the interconnected World Ocean, it is connected in the north to the Arctic Ocean, to the Pacific Ocean in the southwest, the Indian Ocean in the southeast, and the Southern Ocean in the south (other definitions describe the Atlantic as extending southward to Antarctica). The Atlantic Ocean is divided in two parts, by the Equatorial Counter Current, with the North(ern) Atlantic Ocean and the South(ern) Atlantic Ocean split at about 8th paralle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bloubergstrand
Bloubergstrand is a seaside suburb of the City of Cape Town, South Africa, along the shores of Table Bay, due north of the city centre of Cape Town. The name Bloubergstrand literally means "blue mountain beach" in Afrikaans, and is derived from ''Blaauwberg'' (), a nearby hill. Bloubergstrand is mainly a residential area, and attracts large numbers of visitors especially kitesurf enthusiasts. The beach at Bloubergstrand is a popular location for a classic view of Table Mountain across the bay and is one of the world's top kitesurf destinations. Robben Island is located west of the coast of Bloubergstrand. History "Harry die Strandloper", or Hadah, was the leader of the Goringhaikonas, who were the first people documented to live in Bloubergstrand. Hadah, whose original name was Autshumao, was taken to Java in 1629 by the captain of the ship ''London'' to be taught English. Because of his entrusted duties to deliver letters to the British seafaring community, he became the f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Still Bay
The Stillbay (also Still bay) industry is the name given by archaeologists A. J. H. Goodwin and C. van Riet Lowe in 1929 to a Middle Stone Age stone tool manufacturing style after the site of Stilbaai (also called Still Bay) in South Africa where it was first described. It may have developed from the earlier Acheulian types. In addition to Acheulian stone tools, bone and antler picks were also used. Its start and end are calculated at 71.9 ka and 71.0 ka. At present, too few data exist to limit the 95% confidence intervals of these date to more than 4 to 5 ky. However, available data are consistent with a duration of less than 1 ky. Sampson in 1974 questioned its existence on the grounds that sites were not properly described and they lacked stratigraphic integrity However, more recent work from sites such as Blombos Cave and Sibudu Cave attest to its existence. It is broadly analogous to the Mousterian culture in Europe. Olduvai Gorge has within its many ages of tools, some o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cuttlebone
Cuttlebone, also known as cuttlefish bone, is a hard, brittle internal structure (an internal shell) found in all members of the family Sepiidae, commonly known as cuttlefish, within the cephalopods. In other cephalopod families it is called a ''gladius''. Cuttlebone is composed primarily of aragonite. It is a chambered, gas-filled shell used for buoyancy control; its siphuncle is highly modified and is on the ventral side of the shell. The microscopic structure of cuttlebone consists of narrow layers connected by numerous upright pillars. Depending on the species, cuttlebones implode at a depth of . Because of this limitation, most species of cuttlefish live on the seafloor in shallow water, usually on the continental shelf. The largest cuttlebone belongs to the Australian giant cuttlefish, which lives between the surface and a maximum depth of 100 metres. Human uses In the past, cuttlebones were ground up to make polishing powder, which was used by goldsmiths. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type Specimen
In biology, a type is a particular specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally attached. In other words, a type is an example that serves to anchor or centralizes the defining features of that particular taxon. In older usage (pre-1900 in botany), a type was a taxon rather than a specimen. A taxon is a scientifically named grouping of organisms with other like organisms, a set that includes some organisms and excludes others, based on a detailed published description (for example a species description) and on the provision of type material, which is usually available to scientists for examination in a major museum research collection, or similar institution. Type specimen According to a precise set of rules laid down in the International Code of Zoological Nomenclature (ICZN) and the International Code of Nomenclature for algae, fungi, and plants (ICN), the scientific name of every taxon is almost ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Africa
South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring countries of Namibia, Botswana, and Zimbabwe; and to the east and northeast by Mozambique and Eswatini. It also completely enclaves the country Lesotho. It is the southernmost country on the mainland of the Old World, and the second-most populous country located entirely south of the equator, after Tanzania. South Africa is a biodiversity hotspot, with unique biomes, plant and animal life. With over 60 million people, the country is the world's 24th-most populous nation and covers an area of . South Africa has three capital cities, with the executive, judicial and legislative branches of government based in Pretoria, Bloemfontein, and Cape Town respectively. The largest city is Johannesburg. About 80% of the population are Black Sou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South African Museum
The Iziko South African Museum is a South African national museum located in Cape Town. The museum was founded in 1825, the first in the country. It has been on its present site in the Company's Garden since 1897. The museum houses important African zoology, palaeontology and archaeology collections. ''Iziko'' is a Xhosa word meaning "hearth". History The South African Museum was founded by Lord Charles Somerset in 1825 as a general museum comprising natural history and material culture from local and other groups further afield. In time, it developed greater systematic organisation and classification similar to the evolutionary models that were prominent in European and American museums in the late nineteenth and early twentieth centuries. The focus on natural history encouraged the notion that very little divided the animal world from the human subjects who were documented. This continued until the 1990s with the reservation of cultural history museums for the display of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cuttlefish
Cuttlefish or cuttles are marine molluscs of the order Sepiida. They belong to the class Cephalopoda which also includes squid, octopuses, and nautiluses. Cuttlefish have a unique internal shell, the cuttlebone, which is used for control of buoyancy. Cuttlefish have large, W-shaped pupils, eight arms, and two tentacles furnished with denticulated suckers, with which they secure their prey. They generally range in size from , with the largest species, the giant cuttlefish (''Sepia apama''), reaching in mantle length and over in mass. Cuttlefish eat small molluscs, crabs, shrimp, fish, octopus, worms, and other cuttlefish. Their predators include dolphins, sharks, fish, seals, seabirds, and other cuttlefish. The typical life expectancy of a cuttlefish is about 1–2 years. Studies are said to indicate cuttlefish to be among the most intelligent invertebrates. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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