Kingdom=AnimaliaPhylum=EchinodermataSubphylum=EchinozoaClass=EchinoideaSubclass=EuechinoideaInfraclass=Irregularia Superorder:=AtelostomataOrder=SpatangoidaSuborder=BrissidinaSuperfamily=SpatangideaFamily=LoveniidaeGenus=BreyniaSpecies=desorii ID by shadowshador(Flickr)Binomial name=Breynia desoriiCommon name=Heart Urchin
Tests of Red Sea T. g. elatensis showing the rather smooth appearance of the test. arrows show the paucity of spine tubercles - less than 1 spine for each interambulacral plate (most oceanic Tripneustes - T. gratilla, T. depressus and T. ventricosus - all show at least one primary spine for each plate). The wide space between the ambulacra is densely covered by pedicellaria, which are poisonous the a certain degree (some people become allergic to it).