Home › Species › Echinoderms › Flower urchin

Flower urchin (Toxopneustes pileolus)

Photo of Flower urchin (Toxopneustes pileolus)

Key facts

Scientific name
Toxopneustes pileolus
Common name
Flower urchin
Category
Echinoderms
Family
Toxopneustidae
Genus
Toxopneustes
Size
10–15 cm
Depth
0–90 m
IUCN status
Least concern (LC)
Danger level
Harmless
Habitats
coral-reef, sand
Behaviours
benthic, venomous
Ocean zones
Asian Pacific, Indian Ocean & Red Sea

Description

Toxopneustes pileolus reaches 15 cm. Urchin with deceptively cute appearance: pinkish test covered not with spines but with glandular pedicellariae shaped as small white-pink flowers (stellate), each flower being a three-valved venomous jaw. One of the world's most dangerous urchins, proteinous venom (contractin, peditoxin) causing intense pain, paralysis and rare deaths in divers who handled. Lives from 0 to 90 m on coral reefs and sands of tropical Indo-Pacific. Listed LC. Absolute distance photo subject.

Photo of Flower urchin

Photo of Flower urchin (Toxopneustes pileolus)Photo of Flower urchin (Toxopneustes pileolus)

Frequently asked questions

How big is the Flower urchin?
Flower urchin (Toxopneustes pileolus) reaches 10–15 cm in length.
At what depth can you find the Flower urchin?
Flower urchin is found between 0–90 m deep.
Is the Flower urchin dangerous to divers?
Danger level: Harmless.
What is the conservation status of the Flower urchin?
IUCN status: Least concern (LC).
Where can you find the Flower urchin?
Found in: Asian Pacific, Indian Ocean & Red Sea.

Other species in the family Toxopneustidae

  • Tripneustes ventricosus - West Indian sea egg
  • Tripneustes gratilla - Collector urchin
  • Sphaerechinus granularis - Violet sea urchin
  • Lytechinus variegatus - Green Sea Urchin

Sources

  • Taxonomy: WoRMS (AphiaID 212449)
  • Photos: iNaturalist (CC BY-NC)
  • Distribution: GBIF (taxonKey 4341617)
  • Conservation: IUCN Red List
  • Encyclopedia: Wikipedia