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- Argonauta_bottgeri abstract "Argonauta bottgeri, also known as Böttger's argonaut, is a species of pelagic octopus belonging to the genus Argonauta. The female of the species, like all argonauts, creates a paper-thin eggcase that coils around the octopus much like the way a nautilus lives in its shell (hence the name paper nautilus).A. bottgeri is the smallest argonaut species. The eggcase rarely exceeds 50 mm in diameter, although exceptional specimens have been known to grow up to 67.0 mm. A. bottgeri is similar to Argonauta hians, but differs in having more pronounced ribs and prominent tubercles on the keel. The eggcase does not have winged protrusions as is sometimes the case with A. hians. It is generally darker than that of any other species, ranging in colour from ochre-yellow to almost black, although completely white specimens have been reported from South African waters. The eggcase is finely granulated and normally lacks the porcelain-like shine of other species.A. bottgeri is best known from the waters off southern and eastern Africa, although it has also been reported from other parts of the Indian Ocean and from the western Pacific Ocean. The locus classicus of A. bottgeri is Mozambique.A. bottgeri feeds primarily on pelagic molluscs, especially heteropods and pteropods, with other octopods constituting a smaller portion of the animal's diet. Females from Japanese waters have been reported to prey on the pteropod Carolina tridentata. The species is preyed on by numerous predators. A. bottgeri has been reported in the stomach contents of yellowfin tuna from the Indian Ocean.Males of this species reach sexual maturity at a mantle length (ML) of about 7 mm, presumably the maximum size attained. Females begin to secrete an eggcase at 6.5 to 7 mm ML. Female A. bottgeri as small as 11 to 13 mm ML have been reported with hectocotyli in the mantle cavity. They mature at about half the size of Argonauta argo. Eggs are usually laid when females reach 14 or 15 mm ML, although the size at which this takes place differs across the animal's range.It has been reported that the egg clusters of A. bottgeri can be clearly divided into three portions, each with eggs at a similar developmental stage. The first lies closest to the aperture of the eggcase and contains eggs at an early stage of development. The second is located in the middle of the mass and contains eggs at a later stage of development, ranging from the appearance of red eye pigmentation to the beginning of chromatophore formation. The third portion lies furthest from the aperture of the eggcase and consists of eggs with embryos that are ready to hatch, having a fully formed ink sac, chromatophores, and dark coloured eyes. Similar development has been observed in the egg masses of Argonauta nodosa from southern Australia. Egg laying is thought to occur at night and it has been suggested that the three stages of development may represent the products of three successive nights.A. bottgeri is known to cling to objects floating on the surface of the sea, including other argonauts. Chains of up to 30 argonauts of similar size have been reported. The first female in such chains usually clings to some inanimate object, while the other females hold onto the ventral part of the shell of the preceding animal.A. bottgeri is named after Oskar Boettger. The orthographic variant "Argonauta boettgeri" is sometimes encountered. A. bottgeri does not appear to have any nomenclatural synonyms. The type locality and type repository of A. bottgeri are unknown.".
- Argonauta_bottgeri binomialAuthority Maltzan.
- Argonauta_bottgeri class Cephalopod.
- Argonauta_bottgeri family Argonautidae.
- Argonauta_bottgeri genus Argonaut_(animal).
- Argonauta_bottgeri kingdom Animal.
- Argonauta_bottgeri order Octopus.
- Argonauta_bottgeri phylum Mollusca.
- Argonauta_bottgeri synonym "Argonauta boettgeri (orth. var.)".
- Argonauta_bottgeri thumbnail Argonauta_bottgeri_eggcase.png?width=300.
- Argonauta_bottgeri wikiPageExternalLink tree?group=Argonauta.
- Argonauta_bottgeri wikiPageExternalLink ARGONAUTIDAE.
- Argonauta_bottgeri wikiPageID "4041851".
- Argonauta_bottgeri wikiPageRevisionID "605241861".
- Argonauta_bottgeri align "left".
- Argonauta_bottgeri binomial "Argonauta bottgeri".
- Argonauta_bottgeri binomialAuthority "Maltzan, 1881".
- Argonauta_bottgeri classis "Cephalopoda".
- Argonauta_bottgeri familia Argonautidae.
- Argonauta_bottgeri footer "Left: Lateral view of female".
- Argonauta_bottgeri footer "Right: Hectocotylus of male".
- Argonauta_bottgeri genus "Argonauta".
- Argonauta_bottgeri hasPhotoCollection Argonauta_bottgeri.
- Argonauta_bottgeri image "Argonauta bottgeri hectocotylus.jpg".
- Argonauta_bottgeri image "Argonauta_bottgeri.jpg".
- Argonauta_bottgeri imageCaption "Eggcase of Argonauta bottgeri".
- Argonauta_bottgeri name "Böttger's argonaut".
- Argonauta_bottgeri ordo Octopus.
- Argonauta_bottgeri phylum "Mollusca".
- Argonauta_bottgeri regnum "Animalia".
- Argonauta_bottgeri species "A. bottgeri".
- Argonauta_bottgeri synonyms "Argonauta boettgeri (orth. var.)".
- Argonauta_bottgeri width "178".
- Argonauta_bottgeri width "200".
- Argonauta_bottgeri subject Category:Animals_described_in_1881.
- Argonauta_bottgeri subject Category:Argonauta.
- Argonauta_bottgeri type Animal100015388.
- Argonauta_bottgeri type AnimalsDescribedIn1881.
- Argonauta_bottgeri type Food107555863.
- Argonauta_bottgeri type LivingThing100004258.
- Argonauta_bottgeri type Matter100020827.
- Argonauta_bottgeri type Object100002684.
- Argonauta_bottgeri type Octopus107782365.
- Argonauta_bottgeri type Octopuses.
- Argonauta_bottgeri type Organism100004475.
- Argonauta_bottgeri type PhysicalEntity100001930.
- Argonauta_bottgeri type Seafood107776866.
- Argonauta_bottgeri type Solid115046900.
- Argonauta_bottgeri type Whole100003553.
- Argonauta_bottgeri type Animal.
- Argonauta_bottgeri type Eukaryote.
- Argonauta_bottgeri type Mollusca.
- Argonauta_bottgeri type Species.
- Argonauta_bottgeri type Organism.
- Argonauta_bottgeri comment "Argonauta bottgeri, also known as Böttger's argonaut, is a species of pelagic octopus belonging to the genus Argonauta. The female of the species, like all argonauts, creates a paper-thin eggcase that coils around the octopus much like the way a nautilus lives in its shell (hence the name paper nautilus).A. bottgeri is the smallest argonaut species. The eggcase rarely exceeds 50 mm in diameter, although exceptional specimens have been known to grow up to 67.0 mm. A.".
- Argonauta_bottgeri label "Argonauta boettgeri".
- Argonauta_bottgeri label "Argonauta bottgeri".
- Argonauta_bottgeri sameAs Argonauta_boettgeri.
- Argonauta_bottgeri sameAs m.0bf215.
- Argonauta_bottgeri sameAs Q3787615.
- Argonauta_bottgeri sameAs Q3787615.
- Argonauta_bottgeri sameAs Argonauta_bottgeri.
- Argonauta_bottgeri wasDerivedFrom Argonauta_bottgeri?oldid=605241861.
- Argonauta_bottgeri depiction Argonauta_bottgeri_eggcase.png.
- Argonauta_bottgeri isPrimaryTopicOf Argonauta_bottgeri.
- Argonauta_bottgeri name "Böttger's argonaut".