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Found subtidally (Ref. ). Inhabits hard substrates by boring on rocks in shallow waters (Ref. ). It is also found on fore-reefs (Ref. ). Feeds on. Image of Echinometra mathaei. Echinometra mathaei Trusted. Creative Commons Attribution Non Commercial Share Alike (CC BY-NC-SA Physical Description. Echinometra mathaei are roughly spherical in shape and exhibit pentamourous symmetry. The urchin consists of the main body known as .

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Mathaei can grow to sizes of up to 85mm diameter, with no sexual dimorphism McClanahan and Muthiga, In other projects Wikimedia Commons. World Register of Marine Species. The type locality is Mauritius.

World Echinoidea Database – Echinometra mathaei (Blainville, )

The colour is quite variable but the test is usually a dark colour. AgassizEchinometra picta A.

Echinometra mathaei are roughly spherical in shape and exhibit pentamourous symmetry. Echinometridae Animals described in Its natural predators are mostly finfish but there is also some predation by brittle stars and gastropod molluscs. Retrieved from ” https: Bulletin of Marine Science. Spine colour varies with individuals showing spines of various shades of green, grey and purple.

The two sides of the same dried specimen MHNT. Echinometra mathaei with pale banding around the base of spines. Because of its burrowing activities, Echinometra mathaei causes bioerosion of coral reefs.


Blainville[1]. Echinometra mathaei grows to a test diameter of about 5 centimetres 2.

Echinometra mathaei Echinometra mathaei Scientific classification Kingdom: Fertilisation is external and the echinopluteus larvae are planktonic. World Database of Marine Species.

Spines on the ventral oral surface of the urchin are smaller in size and are parted in the centre where the feeding appendage occurs, and spines are similarly smaller on the aboral surface where they give way to the anus.

Kroh A, Mooi R, eds. AgassizEchinometra heteropora A. It has been found that in areas where heavy fishing takes place, the number of urchins is increased because their natural predators are less abundant and as a consequence, greater damage to the reef takes place.

Colour The test of E. Agassiz, Echinometra picta A.

Physical Description Echinometra mathaei are roughly spherical in shape and exhibit pentamourous symmetry. Agassiz, Echinometra heteropora L.

By using this site, you agree to the Terms of Use and Privacy Policy. This page was last edited on 13 Aprilat Echinometra mathaei Blainville[1].

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Echinometra mathaeithe burrowing urchinis a species of sea urchin in the family Echinometridae. It occurs in shallow waters in the Indo-Pacific region. Articles with ‘species’ microformats. When these settle on the seabed, they undergo metamorphosis into juvenile sea urchins.

The spines are sometimes green and purple with purple tips or entirely green with purple tips but this sea urchin can be distinguished from other species by a characteristic pale ring at the base of each spine. Most specimens are between 30 and 70mm diameter with a test size of up to 50mm.


As with other sea urchins, breeding involves releasing gametes into the water column. Mathaei can be distinguished from other urchin species by the pale ring at the base of each spine, a unique characteristic of the species Boyer, Echinometra mathaei uses its spines and teeth part of the mouthparts known as Aristotle’s lantern to dig itself into the basaltic and calcareous rock where it lives.

A commensal shrimpAthanas areteformilives among the spines of this sea urchin [1] and its appearance is mimicked by the mantis shrimpEchinosquilla gueriniiwhich conceals itself in a hole in the rock with only its spiny telson visible. Spines can reach lengths of up to 20mm.

Echinometra mathaei | Jake Horton

Journal of Experimental Marine Biology and Ecology. Spine colour may vary along the length of spine, with some spines appearing pale purple at the base and turning darker towards the tip, or green along the length with white tips. From Wikipedia, the free encyclopedia. The urchin consists of the main body known as the test, and is surrounded by spines extending outwards in all directions.

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