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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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.
Information from Wikipedia on this class of marine molluscs which includes the squid, cuttlefish and octopus.
Personal site of Dr. James B. Wood devoted to the cephalopods with extensive galleries and articles.
Classification and images of cephalopods from the Tree of Life project.
Photographs and information on octopods, squids, cuttlefishes and their relatives from the Tree of Life Web Project.
Photographs and information on Nautilus and Allonautilus which are the last living genera of externally shelled cephalopods.
An online community and news magazine about octopuses, squids, and other cephalopods.
Tom Akkala provides photographs of the common octopus and information on its classification, habitat, adaptation, nutrition, reproduction and interaction with other species.
Factsheet from the FAO on the Common Cuttlefish, its distinguishing features, distribution, habitat and biology.
Research project by Amanda Johnson at the University of Wisconsin-LaCrosse.
Photographs and information on these squid that are often confused with cuttlefish because their large fins wrap around their mantles.
Photograph and information on this cephalopod which spends its whole life in the depths of the ocean.
An online community and news magazine about octopuses, squids, and other cephalopods.
Research project by Amanda Johnson at the University of Wisconsin-LaCrosse.
Factsheet from the FAO on the Common Cuttlefish, its distinguishing features, distribution, habitat and biology.
Personal site of Dr. James B. Wood devoted to the cephalopods with extensive galleries and articles.
Photographs and information on Nautilus and Allonautilus which are the last living genera of externally shelled cephalopods.
Photograph and information on this cephalopod which spends its whole life in the depths of the ocean.
Photographs and information on these squid that are often confused with cuttlefish because their large fins wrap around their mantles.
Photographs and information on octopods, squids, cuttlefishes and their relatives from the Tree of Life Web Project.
Information from Wikipedia on this class of marine molluscs which includes the squid, cuttlefish and octopus.
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.
Tom Akkala provides photographs of the common octopus and information on its classification, habitat, adaptation, nutrition, reproduction and interaction with other species.
Classification and images of cephalopods from the Tree of Life project.
