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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From Wikipedia, the free encyclopedia. Agassiz, Echinometra heteropora L.
World Echinoidea Database – Echinometra mathaei (Blainville, )
Echinometra mathaei Echinometra mathaei Scientific classification Kingdom: 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 abundant echinomtera as a consequence, greater damage to the reef takes place.
Physical Description Echinometra mathaei are roughly spherical in shape and exhibit pentamourous symmetry. Bulletin of Marine Science.
World Register of Marine Species. Fertilisation is external and the echinopluteus larvae are planktonic. It occurs in shallow waters in the Indo-Pacific region.
This page was last edited on 13 Aprilat Blainville. Mathaei can be distinguished from eechinometra urchin species by the pale ring at the base of each spine, a unique characteristic of the species Boyer, Views Read Edit View history. Agassiz, Echinometra picta A. Echinometra mathaeithe burrowing urchinis a species of sea urchin in the family Echinometridae.
World Database of Marine Species. 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.
Because of its burrowing activities, Echinometra mathaei causes bioerosion of coral reefs. Echinometra mathaei grows to a test diameter of about 5 centimetres 2. The spines are sometimes green and purple with purple tips or echinomefra 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. When these settle on the seabed, they undergo metamorphosis into juvenile mataei urchins.
Its natural predators are mostly finfish but there is also some predation by brittle stars and gastropod molluscs. Colour The test of E. Spines can reach lengths of up to 20mm. The type locality is Mauritius. 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.
Most specimens are between 30 and 70mm diameter with a test size of up to 50mm.
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Spine colour varies with individuals showing spines of various shades of green, grey and purple. The colour is quite variable but the test is usually a dark colour.
AgassizEchinometra heteropora A. Articles with ‘species’ microformats. Echinometra mathaei with pale banding around the base of spines.