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Other animals › Arbaciidae

Black Starry Sea Urchin

Arbacia stellata

528 observations in the source records

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Wildlife study photograph from iNaturalist.
(c) c-meling-cm11, some rights reserved (CC BY-NC-SA)

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.

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What the records say

Easily confused with

Study checks a spoken answer against these, and tells you which one you named.

Where it is recorded

Records by month in California.January 210, February 181, March 189, April 234, May 228, June 167, July 143, August 146, September 185, October 189, November 243, December 188.
United States2,306
California2,304
Mexico11
Baja California6
Baja California Sur5
Ecuador2
Arizona1
Hawaii1
Esmeraldas1
Manabi1

Counts show where people looked, not only where it lives.

Traits

Physical

  • RegenerationCan regrow lost body partsFrom its classification

Classification

KingdomAnimals · Animalia
PhylumEchinoderms · Echinodermata
ClassSea Urchins, Sand Dollars, and Heart Urchins · Echinoidea
OrderArbacioida
FamilyArbaciidae
GenusArbacia

Sources

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Practise Black Starry Sea Urchin with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.

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