Nautilus macromphalus, commonly called the bellybutton nautilus, is a species of nautilus native to the waters off New Caledonia and northeastern Australia. Unlike most other nautiluses, its shell lacks a callus, leaving the umbilicus exposed so the inner coils of the shell remain visible through an opening that makes up about fifteen percent of the shell diameter at its widest point.
Facts
Scientific Name Conservation Status Classification
System (Realm) Comparison
CITES Appendix Connections
In the Other Atlases
Found In
Also in Geography Atlas: where this subject is found.
Sources
1. Wikipedia: Nautilus macromphalus
system (MediaWiki batch-API article extract states it plainly)
Based on these radiocarbon dates it is thought the cenote was connected to marine waters for some 700 years before becoming cut off completely.
Lead section
The tentacles of this species are long and thin, having raised ridges which help provide grip when catching prey
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CITES_A2
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DD
View the Source2. Wikidata: Nautilus macromphalus
- Child Taxon Of: Nautilus, Wikidata parent-taxon (P171) chain
- In Biome: Marine, Introduction
View the Source3. Wikipedia: Nautilus macromphalus
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