Octopus General Characteristics | Free Biology Notes

Octopus General Characteristics

After reading this article you will learn about Octopus General Characteristics

General Characteristics of Octopus

  • Marine and free-swimming
  • Internal shell and nidamental gland absent
  • The body is oval and with no lateral fins
  • Head distinct and large with well-developed eyes and mouth.
  • Foot modified into arms and attached with head
  • One of the arms of male is spoon shaped and is called hectocotylized which is used to transfer sperms into the female.
  • Octopus ejects an inky fluid in water and forms a screen for defence from its enemies
  • Octopus can change its colour.
  • Sexes separate and develop­ment is direct

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