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Freshwater Snail. Freshwater Snail. ... 11. Octopus. Octopus. If you have enough space, time and TLC to give, then an Octopus could be the marvelous marine creature your aquarium has been missing ...
An octopus (pl.: octopuses or octopodes [a]) is a soft-bodied, eight-limbed mollusc of the order Octopoda (/ ɒ k ˈ t ɒ p ə d ə /, ok-TOP-ə-də [3]).The order consists of some 300 species and is grouped within the class Cephalopoda with squids, cuttlefish, and nautiloids.
Octopus is the largest genus of octopuses, comprising about 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 common octopus (Octopus vulgaris) is a mollusk 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.
A siphon is an anatomical structure which is part of the body of aquatic molluscs in three classes: Gastropoda, Bivalvia and Cephalopoda (members of these classes include saltwater and freshwater snails, clams, octopus, squid and relatives). Siphons in molluscs are tube-like structures in which water (or, more rarely, air) flows.
The list of marine molluscs of South Africa is a list of saltwater species that form a part of the molluscan fauna of South Africa. This list does not include the land or freshwater molluscs. Mollusca is a phylum of protostomic invertebrate animals, whose members are known as molluscs or mollusks (/ ˈ m ɒ l ə s k s /).
Scientists have discovered what may be a completely new species of octopus-- and it's absolutely adorable.. On February 27th, the National Oceanic and Atmospheric Administration launched an ...
The longitudinal muscles run parallel to the length of the octopus and they are used in order to keep the mantle the same length throughout the jetting process. Given that they are muscles, it can be noted that this means the octopus must actively flex the longitudinal muscles during jetting in order to keep the mantle at a constant length.