Heart Urchin

Lovenia cordiformis

Lovenia cordiformis, known as the Heart Urchin, is a bilaterally symmetric sea urchin that can grow up to 7.5 cm long. Its distinct shape and size make it recognizable among other echinoids. The mouth and anus are positioned ventrally and distally, which is a characteristic feature of this species. The Heart Urchin is typically found on sandy sea floors in the Eastern Pacific Ocean, where it can be located at depths ranging from 0 to 200 meters. It often burrows into the substrate, making it somewhat cryptic in its habitat. Divers may encounter this species while exploring sandy-bottomed areas during their dives.  Feeding primarily on detritus, Lovenia cordiformis plays a role in the benthic ecosystem by recycling organic matter. The species reproduces through external fertilization, with eggs being held on the peristome, around the periproct, or on the petaloids. After fertilization, the embryos develop into planktotrophic larvae, which live in the water column for several months before settling to the sea floor and metamorphosing into juvenile sea urchins. While diving, the Heart Urchin may be seen partially buried in the sand or resting on the substrate. Its presence at various dive sites indicates a widespread distribution within its range. The conservation status of this species has not been evaluated by the IUCN, leaving its population status uncertain.