Other animals › Strongylocentrotidae
Red Sea Urchin
Mesocentrotus franciscanus
28 photos
Study shows up to four per card, from different observers, so you learn the species rather than one picture. Heart the good ones and swap any you do not like.
Photos you add are credited to you, and you keep the copyright.
Easily confused with
Pacific Purple Sea UrchinStrongylocentrotus purpuratus
Atlantic Purple Sea UrchinParacentrotus lividus
Variegated Sea UrchinLytechinus variegatus
Purple-brown UrchinArbacia punctulata
Atlantic Rock-boring UrchinEchinometra lucunter
Arctic Green Sea UrchinStrongylocentrotus droebachiensis
Red-tipped urchinHeliocidaris tuberculata
Western Pacific purple sea urchinHeliocidaris erythrogramma
Study checks a spoken answer against these, and tells you which one you named.
Where it is recorded
| United States | 341,133 |
|---|---|
| California | 339,673 |
| Canada | 1,637 |
| British Columbia | 1,593 |
| Washington | 796 |
| Alaska | 374 |
| Oregon | 210 |
| Nevada | 4 |
| Mexico | 3 |
| Baja California | 3 |
Counts show where people looked, not only where it lives.
Traits
Physical
- RegenerationCan regrow lost body partsFrom its classification
Classification
| Kingdom | Animals · Animalia |
|---|---|
| Phylum | Echinoderms · Echinodermata |
| Class | Sea Urchins, Sand Dollars, and Heart Urchins · Echinoidea |
| Order | Camarodonta |
| Family | Strongylocentrotidae |
| Genus | Mesocentrotus |
Sources
- Names, taxonomy and observation counts: www.inaturalist.org
- Photos and recordings: the creator and source are on each one.
- How much to rely on each source
Remember the name next time.
Practise Red Sea Urchin with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.