Nautilus - Wikipedia
Nautilus (from Latin nautilus 'paper nautilus', from Ancient Greek ναυτίλος nautílos 'little sailor') [3] are the ancient pelagic marine mollusc species of the cephalopod family Nautilidae. This is the sole extant family of the superfamily Nautilaceae and the suborder Nautilina .
What is a nautilus? - NOAA's National Ocean Service
2024年6月16日 · The nautilus is a mollusk that uses jet propulsion to roam the ocean deep. Writers, artists, and engineers have long marveled at the nautilus’s beauty and swimming abilities. The chambered or pearly nautilus is a cephalopod (a type of mollusk)—a distant cousin to squids, octopi, and cuttlefish.
Nautilus | Mollusk, Shell, Subclass | Britannica
Nautilus, either of two genera of cephalopod mollusks: the pearly, or chambered, nautilus (Nautilus), to which the name properly applies; and the paper nautilus (Argonauta), a cosmopolitan genus related to the octopus. The pearly nautilus has a smooth, coiled external shell about 25 cm (10 inches)
Chambered Nautilus - NOAA Fisheries
2024年11月21日 · Nautiluses are cephalopods—a kind of mollusk. Cephalopod means "headfoot", which reflects their relatively complex brain and the numerous tentacles. Nautiluses are related to squids and octopuses, but are easily …
Nautilus (genus) - Wikipedia
Nautilus is a marine cephalopod genus in the mollusk family Nautilidae. Species in this genus differ significantly, morphologically, from the two nautilus species in the adjacent sister-taxon Allonautilus. [2]
Nautilus Facts: Habitat, Behavior, Diet - ThoughtCo
2019年12月13日 · Nautiluses are invertebrates, cephalopods, and mollusks related to octopus, cuttlefish, and squid. Of all the cephalopods, nautiluses are the only animal to have a visible shell. The shell is not only beautiful, but it also provides protection. The nautilus can withdraw into the shell and seal it closed with a fleshy trapdoor called a hood.
Nautilus - American Oceans
Nautilus is a cephalopod mollusk that has a unique shell structure. The shell is spiral-shaped and consists of a series of chambers that are connected by a siphuncle. The shell is composed of nacre, which gives it a beautiful iridescent appearance.
Nautiluses: Characteristics, Shells and Species
Nautiluses are marine cephalopods — molluscs related to squid and octopus. But unlike other cephalopods, they are housed within a distinctive smooth, hard shell. Nautilus live in the open water in and around coral reefs in the Pacific and Indian Oceans.
Nautilus: The Ocean's Living Fossil - Ocean Info
Nautilidae is a large family of cephalopods (a type of mollusk) of which the Nautilus is a part. It encompasses six species in 2 different genotypes, with this genus as the archetype. Although it particularly refers to the species Nautilus pompilius, any Nautilidae member can also go by the label of chambered Nautilus.
Nautilus - Classification, Anatomy, Movement, Diet and FAQs
The nautilus is a type of pelagic marine mollusk that belongs to the Nautilidae cephalopod family. The only extant member of the Nautilaceae superfamily and its small but nearly equal suborder, Nautilina, is the nautilus. The name nautilus comes from the Greek word nautlos, which originally referred to the octopus-like paper nautilus of the ...