Summary[edit] Description: Dosidicus gigas as taken at Port Otway, western Patagonia, 1888. Date: 1888. Source: NOAA Photo library. Author: Archival Photographer Stefan Claesson.
Description: English: This Arrow squid, measured almost two feet long when it was brought aboard the R/V SEWARD JOHNSON during an evenings "night lighting" sampling. South Atlantic Bight, Southeast United States. Date: 15 October 2010, 12:02. Source: NOAA Photo Library: expl0380. Author: Bruce Moravchik, NOAA. Credit: Islands in the Stream Expedition 2002. NOAA Office of Ocean Exploration.
Summary[edit] Description: English: The cephalopod Nautilus macromphalus (Sowerby 1848) photographed in night dive, 15 meters, Lifou (New Caledonia). Date: 21 October 2018. Source: Original file Image taken from Wikimedia Commons. Author: Pujolle.
Italy, Sardegna, Nuoro, Golfo dell'Asinara, Le Vele, sandy bay, washed ashore, in high tide line, collected 27th February 2011, ex coll. J.N.J. Post. Image by Joop Trausel and Frans Slieker
Cuttlefish, like their cousin the octopus, have eight arms. Cuttlefish differ however in that they have in internal calcareous "shell" that is porous; they use this for buoyancy control in order to hover level. Their movement is largely controlled by fluttering fins along the side of their body. They also have two specialised tentacles; they can shoot them out to grasp their prey.
Cuttlefish swim and hover using their fluttering side fins, but when they need to make a quick escape they use a water jet below their bodies - you can see these two fighter planes in the photo as they make a quick escape!