Cephalopoda Mollusca Animalia Flora and Fauna

The class Cephalopoda consists of the squids and octopuses. The name means head-foot and they have large heads with a mouth and horny beak, surrounded by muscular tentacles, sometimes with suckers or hooks. The shell may be reduced or absent. They have large eyes and part of the mantle forms a muscular siphon through which water is forced to provide jet propulsion. Some can change color by way of camouflage and several extrude a cloud of ink for protection. They are all marine and many are big, swift and intelligent.

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• Octopus vulgaris - Tom Akkala provides photographs of the common octopus and information on its classification, habitat, adaptation, nutrition, reproduction and interaction with other species.
  
• Octopus macropus - Interesting videoclip of an octopus escaping through a small hole.
  
• Cephalopod International Advisory Council - Supports and encourages cephalopod research and communication among cephalopod researchers by means of meetings, workshops, and a newsletter.
  
• Colossal Squid (Mesonychoteuthis hamiltoni) - Information on this species, which is both the largest squid and the largest invertebrate known.
  
• Sepioteuthis lessoniana: Bigfin Reef Squid - Research project by Amanda Johnson at the University of Wisconsin-LaCrosse.
  
• Cephalopod - Information from Wikipedia on this class of marine molluscs which includes the squid, cuttlefish and octopus.
  
• Lolliguncula brevis: Brief Squid - Information from the Invertebrate Anatomy OnLine about this mollusc, its systematics, external anatomy and internal anatomy.
  
• Sepioteuthis sepioidea: Caribbean Reef Squid - Photographs and information on these squid that are often confused with cuttlefish because their large fins wrap around their mantles.
  
• Vampyroteuthis infernalis: Deep-sea Vampire Squid - Photograph and information on this cephalopod which spends its whole life in the depths of the ocean.
  
• Coleoidea - Photographs and information on octopods, squids, cuttlefishes and their relatives from the Tree of Life Web Project.
  
• Architeuthis dux: Giant Squid - Research project by Jordan Mandli on this species, including its classification, general description, adaptations to its deepwater environment, habitat, nutrition and the legends that surround it.
  
• CephBase - Database on cephalopods (octopus, squid, cuttlefish and nautilus), including images, taxonomy, life history, and researchers.
  
• The Octopus News Magazine Online - An online community and news magazine about octopuses, squids, and other cephalopods.
  
• Cephalopoda - Classification and images of cephalopods from the Tree of Life project.
  
• Octopus.com - Information on the family Octopoda, including locomotion, anatomy, species and cephalopod literature.
  
• EuroSquid - Descriptions of current cephalopod research, a directory of researchers, links to publications, and cephalopod news.
  
• Cuttlefish: the Sentient Cephalopod - This page includes a true story of human-cuttlefish interaction, and several photographs.
  
• The Cephalopod Page - Personal site of Dr. James B. Wood devoted to the cephalopods with extensive galleries and articles.
  
• Ocean Planet: In Search of Giant Squid - Myths and facts about the giant squid.
  
• Sepia officinalis - Factsheet from the FAO on the Common Cuttlefish, its distinguishing features, distribution, habitat and biology.
  
• Giant Squid (Architeuthis Clarkei) - Images of Giant Squid from the film Incredible Suckers.
  
• Nautilus pompilius: Nautiluses - Photographs and information on Nautilus and Allonautilus which are the last living genera of externally shelled cephalopods.
  
• Giant Squid - Information about Architeuthus dux and an illustration.
  
• National Resource Center for Cephalopods - Offers resources for cephalopod researchers. Includes photo gallery.
  
  

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