Friday Deep-Sea Picture: Cirrate Octopus

Credit to NOC and 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.

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 (1801 Posts)

Craig McClain is the Executive Director of the Lousiana University Marine Consortium. He has conducted deep-sea research for 20 years and published over 50 papers in the area. He has participated in and led dozens of oceanographic expeditions taken him to the Antarctic and the most remote regions of the Pacific and Atlantic. Craig’s research focuses on how energy drives the biology of marine invertebrates from individuals to ecosystems, specifically, seeking to uncover how organisms are adapted to different levels of carbon availability, i.e. food, and how this determines the kinds and number of species in different parts of the oceans. Additionally, Craig is obsessed with the size of things. Sometimes this translated into actually scientific research. Craig’s research has been featured on National Public Radio, Discovery Channel, Fox News, National Geographic and ABC News. In addition to his scientific research, Craig also advocates the need for scientists to connect with the public and is the founder and chief editor of the acclaimed Deep-Sea News (, a popular ocean-themed blog that has won numerous awards. His writing has been featured in Cosmos, Science Illustrated, American Scientist, Wired, Mental Floss, and the Open Lab: The Best Science Writing on the Web.