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Octopus Squid
The Octopoteuthidae are a family (biology), family of squid comprising two genus, genera. The family is characterized by tentacles which cease to grow after the paralarval stage which leads to the adult having eight arms; thus, members of this family are common name, commonly named as octopus squids. Description Octopoteuthidae is considered to be closely related to the Monotypic taxon, monotypic family Lepidoteuthidae (genus ''Lepidoteuthis''), sometimes being its Sister group, sister family. Octopus squids are Apomorphy and synapomorphy, characterized by a semi-wikt:gelatinous, gelatinous body, with very long, broad fins; the fins approach the Mantle length, length of the mantle in adults. These are oval in shape and muscular, with the two fins being fused towards the midline of the mantle. Their namesake feature is the lack of tentacles in adults; paralarvae and young juveniles possess them, but they do not develop after this stage, and so the adults only have Cephalopod limb, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taningia Danae
''Taningia danae'', the Dana octopus squid, is a species of squid in the family Octopoteuthidae, the octopus squids. It is one of the Cephalopod size, largest known squid species, and it has one of the largest photophores (light organs) known in any organism, useful in the Deep-sea community, deep-sea environments that the species inhabits. Discovery The possible (but unconfirmed) first specimen of this species was collected in 1769, when Joseph Banks, member of Captain Cook’s first voyage, spotted a massive "cuttlefish" floating in the South Pacific, off the coast of Chile. Seabirds had already damaged it, and most of the remaining carcass was Squid as food, prepared into a meal which Banks described as "one of the best soups [he] ever ate". However, he made sure to preserve an Cephalopod limb, arm, some entrails, and the buccal mass including the Cephalopod beak, beak, which would eventually enter John Hunter (surgeon), John Hunter's collection in London; the surviving buccal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cephalopod Limb
All cephalopods possess flexible limbs extending from their heads and surrounding their beaks. These appendages, which function as muscular hydrostats, have been variously termed arms, legs or tentacles. Description In the scientific literature, a cephalopod ''arm'' is often treated as distinct from a '' tentacle'', though the terms are sometimes used interchangeably, often with the latter acting as an umbrella term for cephalopod limbs. Generally, arms have suckers along most of their length, as opposed to tentacles, which have suckers only near their ends.Young, R.E., M. Vecchione & K.M. Mangold 1999Cephalopoda Glossary Tree of Life web project. Barring a few exceptions, octopuses have eight arms and no tentacles, while squid and cuttlefish have eight arms (or two "legs" and six "arms") and two tentacles.Norman, M. 2000. ''Cephalopods: A World Guide''. ConchBooks, Hackenheim. p. 15. "There is some confusion around the terms ''arms'' versus ''tentacles''. The numerous ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
