# Flat-bottomed star (*Asterias amurensis*)

Canonical page: https://creaturedata.com/animals/flat-bottomed-star  
Data as of: 2026-11-11

The flat-bottomed star (Asterias amurensis) is an echinoderm in the family Asteriidae, order Forcipulatida and class Asteroidea. It is also called the Purple-orange star, North Pacific starfish, Japanese common sea star, Northern Pacific seastar and Japanese common starfish. The species was named by Lutken, 1871, and the Catalogue of Life lists it as living, not extinct.

## Quick facts

| Fact | Value |
|---|---|
| Weight | Not recorded |
| Length | Not recorded |
| Lifespan | Not recorded |
| Main food | Not recorded |
| Habitat | marine |
| Young per litter or clutch | Not recorded |
| Conservation status | Not recorded |
| Countries on record | Not recorded |

## Classification

- kingdom: Animalia
- phylum: Echinodermata
- class: Asteroidea
- order: Forcipulatida
- family: Asteriidae
- genus: Asterias
- species: *Asterias amurensis* Lutken, 1871

Synonyms: *Allasterias migrata*, *Allasterias rathbuni var. nortonensis*, *Asteracanthion rubens var. migratum*, *Asterias acervispinis*, *Asterias amurensis f. acervispinis*, *Asterias amurensis f. flabellifera*, *Asterias amurensis f. gracilispinis*, *Asterias amurensis f. latissima*, *Asterias flabellifera*, *Asterias gracilispinis*, *Asterias latissima*, *Asterias pectinata*, *Asterias rubens var. migratum*, *Parasterias albertensis*

## Common questions

### What kind of animal is the flat-bottomed star?

The flat-bottomed star is an echinoderm in the phylum Echinodermata and class Asteroidea.

### What is the scientific name of the flat-bottomed star?

Its scientific name is Asterias amurensis, in the genus Asterias and family Asteriidae.

### Who named Asterias amurensis and when?

Asterias amurensis was named by Lutken, 1871.

### What other names does the flat-bottomed star have?

It is also called the Purple-orange star, North Pacific starfish, Japanese common sea star, Northern Pacific seastar and Japanese common starfish.

### Is the flat-bottomed star extinct?

No, the Catalogue of Life lists the flat-bottomed star as living, not extinct.

## Sources

- [Catalogue of Life eXtended Release](https://www.checklistbank.org/dataset/316691), CC BY 4.0, 2026-10-16 XR. Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf
- [Wikimedia Commons](https://commons.wikimedia.org), per file (CC0 / public domain / CC BY green, CC BY-SA amber, anything else not displayed), 2026-11-11. Wikimedia Commons contributors. Wikimedia Commons. https://commons.wikimedia.org (each file credited to its author under its own licence).
- [Wikidata](https://www.wikidata.org), CC0 1.0, 2026-11-11. Wikidata contributors. Wikidata. https://www.wikidata.org (data retrieved via the Wikidata Query Service).
- [Wikipedia (English)](https://en.wikipedia.org), CC BY-SA 4.0, 2026-11-11. Wikipedia contributors. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org (text under CC BY-SA 4.0; each block names its article and revision).

Cite as: Flat-bottomed star (Asterias amurensis). Retrieved from https://creaturedata.com/animals/flat-bottomed-star