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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Its natural predators are mostly finfish but there is also some predation by brittle stars and gastropod molluscs.

Mathaei can be distinguished from other urchin species by the pale ring at the echinmetra of each spine, a unique characteristic of the species Boyer, AgassizEchinometra heteropora A. This page was last edited on 13 Aprilat Agassiz, Echinometra heteropora L.

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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 echinometga hole mathhaei the rock with only its spiny telson visible.

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.

Physical Description Echinometra mathaei are roughly spherical in shape and exhibit pentamourous symmetry. When these settle on the seabed, they undergo metamorphosis into juvenile sea urchins.


Echinometra mathaei Echinometra mathaei Scientific classification Kingdom: Echinometra mathaei grows to a test diameter of about 5 centimetres 2. Because of its burrowing activities, Echinometra mathaei causes bioerosion of coral reefs. Mathaei can grow to sizes of up to 85mm diameter, with no sexual dimorphism McClanahan and Muthiga, By using this ecihnometra, you agree to the Terms of Use and Privacy Policy.

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.

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. Fertilisation is external and the echinopluteus larvae are planktonic. AgassizEchinometra picta A.

Blainville[1]. Bulletin of Marine Science. Colour The test of E. World Database of Marine Species. The type locality is Mauritius. 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.

World Register of Marine Species. Retrieved from ” https: The urchin consists of the main body known as the test, and is surrounded by spines extending outwards in all directions. Kroh A, Mooi R, eds. The two sides of the same dried specimen MHNT. Journal of Experimental Marine Biology and Ecology. Articles with ‘species’ microformats.


Echinometra mathaei Blainville[1].

It occurs in shallow waters in the Indo-Pacific region. From Wikipedia, the free encyclopedia. In other projects Wikimedia Commons. Views Read Edit View history. The colour is quite variable but the test is usually a dark colour.

WoRMS – World Register of Marine Species – Echinometra mathaei (Blainville, )

Spines can reach lengths of up to 20mm. Agassiz, Echinometra picta A. As with other sea urchins, breeding involves releasing gametes into the water column. Echinometra mathaei are roughly spherical in shape and exhibit pentamourous symmetry. Echinometra mathaei with pale banding around the base of spines. 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.

Echinometra mathaei echibometra, the burrowing urchinis a species of sea urchin in the family Echinometridae. Echinometridae Animals described in Most specimens are between 30 and 70mm diameter with a test size of up to 50mm.

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