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Octopus (genus)
''Octopus'' is the largest genus of octopuses, comprising more than 100 species. These species are widespread throughout the world's oceans. Many species formerly placed in the genus ''Octopus'' are now assigned to other genera within the family. The octopus has 8 arms, averaging 20 cm long for an adult.Bouchet, P.; Gofas, S. (2015). Octopus Cuvier, 1798. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=138268 on 2015-02-01 Species *'' Octopus alatus'' Sasaki, 1920 (taxon inquirendum) *'' Octopus alecto'' Berry, 1953 *'' Octopus araneoides'' * Iw. Taki, 1964 (taxon inquirendum) *'' Octopus arborescens'' Hoyle, 1904 (taxon inquirendum) * '' Octopus argus'' Krauss, 1848 *'' Octopus australis'' Hoyle, 1885 – hammer octopus *'' Octopus balboai'' Voss, 1971 * '' Octopus berenice'' Gray, 1849 *'' Octopus berrima'' Stanks & Norman, 1992 – southern keeled octopus *'' Octopus bimaculatus'' Verrill, 1883 – California two-s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Octopus Vulgaris
The common octopus (''Octopus vulgaris'') is a mollusc belonging to the class Cephalopoda. ''Octopus vulgaris'' is one of the most studied of all octopus species, and also one of the most intelligent. It ranges from the eastern Atlantic, extends from the Mediterranean Sea and the southern coast of England, to the southern coast of South Africa. It also occurs off the Azores, Canary Islands, and Cape Verde Islands. The species is also common in the Western Atlantic. The common octopus hunts at dusk. Crabs, crayfish, and bivalve molluscs (two-shelled, such as cockles) are preferred, although the octopus eats almost anything it can catch. It is able to change colour to blend in with its surroundings, and is able to jump upon any unwary prey that strays across its path. Using its beak, it is able to break into the shells of shelled molluscs. Training experiments have shown the common octopus can distinguish the brightness, size, shape, and horizontal or vertical orientation of objects ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Octopus Briareus
The Caribbean reef octopus (''Octopus briareus'') is a coral reef marine animal. It has eight long arms that vary in length and diameter. The mantle is large and chunky in comparison (up to 60 cm long). This species is difficult to describe because it changes color and texture to blend into its surroundings, using specialised skin cells known as chromatophores. Its color range is very large; it can change from crimson to green, and bumpy to smooth. It weighs around 3.3 lb or 1.5 kg. Ecology Habitat and distribution The Caribbean reef octopus lives in warm waters around coral reef environments and grassy and rocky sea beds. Their biogeographic regions are as follows: the Nearctic region, Neotropical region (Central and South America), oceanic islands and the Pacific Ocean. The Caribbean reef octopus lives in hidden, rocky lairs that are difficult to locate. Their lairs are usually created in shallow warm waters. ''O. briareus'' is not a social animal, and st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Octopus Fujitai
An octopus ( : octopuses or octopodes, see below for variants) is a soft-bodied, eight- limbed mollusc of the order Octopoda (, ). The order consists of some 300 species and is grouped within the class Cephalopoda with squids, cuttlefish, and nautiloids. Like other cephalopods, an octopus is bilaterally symmetric with two eyes and a beaked mouth at the center point of the eight limbs. The soft body can radically alter its shape, enabling octopuses to squeeze through small gaps. They trail their eight appendages behind them as they swim. The siphon is used both for respiration and for locomotion, by expelling a jet of water. Octopuses have a complex nervous system and excellent sight, and are among the most intelligent and behaviourally diverse of all invertebrates. Octopuses inhabit various regions of the ocean, including coral reefs, pelagic waters, and the seabed; some live in the intertidal zone and others at abyssal depths. Most species grow quickly, mature early, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
