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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Fertilisation is external and the echinopluteus larvae are planktonic. The colour is quite variable but the test is usually a dark colour. Its rchinometra predators are mostly finfish but there is also some predation by brittle stars and gastropod molluscs. The type locality is Mauritius. Because of its burrowing activities, Echinometra mathaei causes bioerosion of coral reefs.

Agassiz, Echinometra picta A.

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. Echinometra mathaei with pale banding echinometrra the base of spines.

Spine colour varies with individuals showing spines of various shades of green, grey and purple. Echinometridae Animals described in Most specimens are between 30 and 70mm diameter with a test size of up to 50mm.


Views Read Edit View history. When these settle on the seabed, they undergo metamorphosis into juvenile sea urchins.

Blainville[1]. AgassizEchinometra heteropora A. 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.

Echinometra mathaei grows to echinoketra test diameter of about 5 centimetres 2. Retrieved from ” https: Kroh A, Mooi R, eds. World Database of Marine Species. Spines can reach lengths of up to 20mm.

Echinometra mathaei are roughly spherical in shape and exhibit pentamourous symmetry.

Echinometra mathaei – Wikipedia

Articles with ‘species’ microformats. This page was last edited on 13 Aprilat The two sides of the same dried specimen MHNT. Mathaei echunometra grow to sizes of up to 85mm diameter, with no sexual dimorphism McClanahan and Muthiga, Echinometra mathaeithe burrowing urchinis a species of sea urchin in the family Echinometridae. Bulletin of Marine Science. 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 echinometr the anus.

The urchin consists of the main body known as the test, and is surrounded by spines extending outwards in all directions. AgassizEchinometra picta 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 mathaeo and as a consequence, greater damage to the reef takes place. Journal of Experimental Marine Biology and Ecology.


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World Register of Marine Species. From Wikipedia, the free encyclopedia. Echinometra mathaei Blainville[1]. 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.

As with other sea urchins, breeding involves releasing gametes into the water column. Physical Description Echinometra mathaei are roughly spherical in shape and exhibit pentamourous symmetry.

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,