Deep-sea octopods fall into two categories - cirrate
with fins, or incirrate without fins, which look more like a shallow-water octopus.
This deep-sea cirrate
octopod glows in the darkness of the Atlantic Ocean.
Among the bizarre creatures encountered by the researchers were a six foot long cirrate
octopod - nicknamed "Dumbo" because of the large earlike fins it uses to swim - discovered more than a mile deep on the Mid-Atlantic Ridge.
As part of the census project, scientists from the Smithsonian Institution have collected a very large specimen of a rare, primitive animal known as cirrate
or finned octopod, commonly called " Dumbos" because they flap a pair of large ear- like fins to swim, akin to the cartoon flying elephant.
Bioluminescent lures occur in anglerfishes and stomiatoid fishes, and photophores in some chiroteuthid, histioteuthid, cranchiid, and enoploteuthid squids, cirrate
octopuses, and V.
Phylogenetic relationships among cirrate
octopods (Mollusca: Cephalopoda) resolved using mitochondrial 16S ribosomal DNA sequences.
This function has been proposed for the twinkling bioluminescent suckers and mucous glands of the cirrate octopus Stauroteuthis syrtensis (Johnsen et al.
Bioluminescence in the deep-sea cirrate octopod Stauroteuthis syrtensis Verrill (Mollusca: Cephalopoda).
The benthopelagic cirrate
octopods are all opaque and often strongly pigmented.
Medusoid swimming has been observed previously for cirrate
octopods (Vecchione and Roper, 1991; Vecchione and Young, 1997; Villanueva et al.
Videotapes filmed from submersibles have documented the behavior of deep-sea squids (Moiseev, 1991; Vecchione and Roper, 1991; Roper and Vecchione, 1997) and cirrate
octopods (Vecchione and Young, 1997; Villanueva et al.
max] = 470 nm) was observed from sucker-like structures arranged along the length of the arms of the cirrate
octopod Stauroteuthis syrtensis.