Friday Deep-Sea Picture: Cirrate Octopus

Credit to NOC and Deepscape.org: Coarse rocky ground with cirrate octopus (Cephalopod) above the seabed taken at 1126m in the Faroe-Shetland Channel. Others great images can be viewed by searching around their image bank.

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From TOL:
The Cirrata contains about 40 species many of which are poorly known and of uncertain status…One of the most distinctive features of this group and the feature from which it derives its name, is the presence of cirri. The oral view of the arms and web of a cirrate below barely shows the cirri lining the arms but the insert show the cirri clearly. The cirri are the long, slender, muscular papillae lining the arm. The exact function of the cirri is unknown but they are thought to play a role in feeding.

Dr. M (1605 Posts)

Craig McClain is the Assistant Director of Science for the National Evolutionary Synthesis Center, created to facilitate research to address fundamental questions in evolutionary science. He has conducted deep-sea research for 11 years and published over 40 papers in the area. He has participated in dozens of expeditions taking him to the Antarctic and the most remote regions of the Pacific and Atlantic. Craig’s research focuses mainly on marine systems and particularly the biology of body size, biodiversity, and energy flow. He focuses often on deep-sea systems as a natural test of the consequences of energy limitation on biological systems. He is the author and chief editor of Deep-Sea News, a popular deep-sea themed blog, rated the number one ocean blog on the web and winner of numerous awards. Craig’s popular writing has been featured in Cosmos, Science Illustrated, American Scientist, Wired, Mental Floss, and the Open Lab: The Best Science Writing on the Web.





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