Squid are members of the class Cephalopoda, subclass Coleoidea, order Teuthida, of which there are two major suborders, Myopsina and Oegopsina (including the giant squids like Architeuthis dux). Teuthida is the largest of the cephalopod orders, edging out the octopuses (order Octopoda) for total number of species, with 298 classified into 28 families.
The order Teuthida is a member of the superorder Decapodiformes (from the Greek for "ten legs"). Two other orders of decapodiform cephalopods are also called squid, although they are taxonomically distinct from Teuthida and differ recognizably in their gross anatomical features. They are the bobtail squid of order Sepiolida and the Ram's Horn Squid of the monotypic order Spirulida. The Vampire Squid, however, is more closely related to the octopuses than to any of the squid.
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If you mean how many survive today considering environmental changes, that answer is difficult to ascertain; however to date there are 300 known species of squids or cephalopods. The name cephalopods refers to these creatures' unique shaped heads and connected appendages which normally extend outward for the purposes of movement, hunting, and when eating.
Scientist have not found all the animal in the sea yet. But if you want to know how many animals they found in the sea only about 5% but to guess how many squid there are about 1,000.
probably about 650-700 types of Octopus and I think there arevover 300 types of squid's
500 different types of squid and 300 types of octopuses
There are around 300 species of squid.
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There are exactly 289 different octopus species. Here is some more information about octopuses and their different species: http://en.wikipedia.org/wiki/Octopus -GLOWSTICK.
There are about 85,000 recognized living species in the phylum Mollusca, which includes familiar organisms like snails, clams, and octopuses.
It all depends on which species you look at. /
It appears to vary from species to species. For example, Octopus aegina has it; but Octopus vulgaris does not.
Here are some diffrent species: REUBESCENS, DOFLEINI, VULGARIS, CYANEA, BRIARIUS, MACROPUS, and DEFILIPPI.
There are many giant octopuses left in the world. Even though they are not on the endangered or threatened species, doesn't make them resistant to pollution. They are very sensitive to polluted waters. To answer your question Giant Pacific Octopuses are not endangered.
No, I don't think so, because we are allowed to eat them. nomz
None. All Octopuses eventually die in adulthood Another answer If the question was "how many octopuses survive until adulthood," there's a different answer. Under normal circumstances, any species produces just enough young to sustain the species, so each adult female octopus (most of which produce only one brood in their lifetimes) must produce two young that survive until adulthood. Out of a typical clutch of about 200,000 eggs, about 199,998 will die before reaching adulthood.
Octopuses have the ability to camouflage and they pounce on their prey. Most octopuses hunt at night. The giant octopus usually feeds on bivalves, crabs, and lobster, but will eat a range of species. They have also been observed eating fish, sharks, and even birds.
Synapomorphies of invertebrates are animals species that do not possess or develop vertebral column. The species that are invertebrate are crab, lobster, snails, clam and octopuses.
They have 3 hearts
Octopuses are in the phylum Mollusca. Their full scientific classification is: Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda Order: Octopoda from there octopuses are broken down into Families, and finally Genus and Species.