Brissus unicolor (Leske, 1778)
big white heart urchin
No Picture Available

Family:  Brissidae ()
Max. size: 
Environment:  benthic; marine; depth range 0 - 240 m
Distribution:  Atlantic and the Mediterranean Sea. Subtropical and tropical.
Diagnosis:   
Biology:  Maximum depth from Ref. 83942. Infaunal (Ref. 111335). This is an epibenthic species found on rocky and soft bottom substrates in subtidal areas with depths of 0 to 240 m (Ref. 83942). Also on rubble (Ref. 111335). Members of the class Echinoidea are gonochoric. Fertilization is external. Brooding is common, eggs are held either on the peristome, around the periproct or deep into the concavities on the petaloids. Life cycle: Embryos develop into planktotrophic larvae (echinoplateus) and live for several months before they sink to the bottom using their tube feet to adhere on the ground where they metamorphose into young urchins (Ref. 833).
IUCN Red List Status: Not Evaluated (N.E.) Ref. (120744)
Threat to humans: 
Country info:   
 

Entered by: Sorongon-Yap, Patricia - 11.12.05
Modified by: Conejar - Espedido, Jeniffer - 10.02.16
Checked by: Cort├ęs, Jorge - 07.10.11

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