Other animals › Cidaridae
slate pencil urchin
Eucidaris thouarsii
770 observations in the source records
25 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.
What the records say
- 770 observations are recorded in the imported source snapshot. Observation source
Easily confused with
Slate Pencil UrchinEucidaris tribuloides
Lace CoralPocillopora damicornisStudy checks a spoken answer against these, and tells you which one you named.
Where it is recorded
| Mexico | 81 |
|---|---|
| Baja California Sur | 41 |
| Ecuador | 21 |
| Manabi | 20 |
| United States | 18 |
| California | 18 |
| Colima | 11 |
| Sonora | 7 |
| Costa Rica | 7 |
| Guerrero | 6 |
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 | Pencil Urchins · Cidaroida |
| Family | Cidaridae |
| Genus | Eucidaris |
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 slate pencil urchin with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.