Echinothrix

Echinothrix
	Echinothrix calamaris
Scientific classification
Kingdom:	Animalia
Phylum:	Echinodermata
Class:	Echinoidea
Order:	Diadematoida
Family:	Diadematidae
Genus:	Echinothrix; Peters, 1853[1]
Species
	Echinothrix diadema; Echinothrix calamaris;

Echinothrix is a genus of sea urchins which was first described in 1853 by Wilhelm Peters, a German naturalist and explorer.

Description and characteristics

The genus contains two species, E. diadema and E. calamaris.[1] These can be distinguished by the fact that E. diadema has fully black spines whereas E. calamaris has striped spines. Both of these species are found in the Indo-Pacific region, living on coral reefs.

Taxonomy

According to World Register of Marine Species :

Echinothrix diadema (Linnaeus, 1758)
Echinothrix calamaris (Pallas, 1774)

References

Kroh, Andreas (2013). Kroh A, Mooi R (eds.). "Echinothrix Peters, 1853". World Echinoidea Database. World Register of Marine Species. Retrieved 2013-11-23.

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[WoRMS-1] Kroh, Andreas (2013). Kroh A, Mooi R (eds.). "Echinothrix Peters, 1853". World Echinoidea Database. World Register of Marine Species. Retrieved 2013-11-23.