Allonautilus
The genus Allonautilus contains two species of nautiluses, which have a significantly different morphology from those placed in the sister taxon Nautilus.[1] Allonautilus is now thought to be a descendant of Nautilus, rendering the latter genus paraphyletic.
| Allonautilus | |
|---|---|
 | |
| Allonautilus scrobiculatus shell with periostracum removed | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | Nautiloidea |
| Order: | Nautilida |
| Family: | Nautilidae |
| Genus: | Allonautilus Ward & Saunders, 1997 |
| Type species | |
| Allonautilus scrobiculatus | |
| Species | |
|
2, see text | |
Live individuals of the genus have only been collected in Papua New Guinea and the Solomon Islands. Little is known about their biology because they live in deep waters,[2] whereas the better-understood genus Nautilus lives closer to the surface.
The entire family Nautilidae, including all species in the genus Nautilus and Allonautilus, was listed on Appendix-II of Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES).[3]
Species
| Image | Scientific name | Common name | Distribution |
|---|---|---|---|
 | Allonautilus perforatus | Bali and Papa New Guinea | |
 | Allonautilus scrobiculatus | crusty nautilus | Papua New Guinea and the Solomon Islands |
References
- Ward, P.D. & W.B. Saunders 1997. Allonautilus: a new genus of living nautiloid cephalopod and its bearing on phylogeny of the Nautilida. Journal of Paleontology 71(6): 1054–1064.
- Groth, J. G., et al. (2015). The mitochondrial genome of Allonautilus (Mollusca: Cephalopoda): Base composition, noncoding-region variation, and phylogenetic divergence. American Museum Novitates 3834 1-18.
- "Checklist of CITES species".
External links
- Allonautilus. CephBase.
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