Types of Jellyfish

There are more than 1270 species of jellyfish that fall in the cnidarian classes. Read on to know more about the different species and various types of jellyfish found primarily in deep seas as well as tropical habitats.
| Wednesday, October 15, 2008

The various different cnidarian classes of jellyfish are scyphozia, staurozoa, cubozoa and hydrozoa. Here is an estimate and information on number of different kinds of species found in various cnidarian classes:

The Scyphozoa Class

  • More than 150 species
  • These ones are big and often colorful
  • Mostly are found in coastal water sources around the world
  • The sting from these types of jellyfish is not considered lethal but taking first aid upon receiving the sting would be the best way to go
  • These types of jellyfish are considered as a source of food and even harvested for the same in many countries which primarily includes the Asian countries

The Staurozoa Class

  • More than 50 species
  • Also known as stalked jellyfish or stauromedusae
  • They are not known to be big in size, instead they are small and calm
  • The jellyfish in these classes often live in cold water and are generally found in Europe and North America and Asia
  • They are deceptive in nature and most of them are often colorless and hard to be visible to the naked eye

The Cubozoa Class (Box Jellyfish)

  • More than 20 different species
  • They are really fast movers and constantly on the search of their prey. This is helped by their extremely capable ability of seeing with their 24 eyes
  • The sting from these types of jellyfish is considered to be extremely fatal and if proper medication is not received in time a person could suffer from hypersensitivity reaction which can even result into death
  • These box jellyfishes can be found in North Australia, Philippines, Hawaii, Vietnam as well as many other tropical areas.

The Hydrozoa Class

  • More than 1200 different species
  • Found in deep seas, saltwaters as well as freshwater sources and are mostly colorful
  • The lifespan of these jellyfishes is not much often ranging from a few hours to a few months
  • Some of these types are capable of producing both sexually and asexually
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