Echinus gilchristi explained

Echinus gilchristi, also known by its common name, Gilchrist's sea urchin, is a species of marine invertebrate in the Echinidae family that usually grows to a diameter of 10 cm.^[1]

Notes and References

1. Web site: WoRMS - World Register of Marine Species - Echinus gilchristi Bell, 1904 . Marinespecies.org . 2014-05-24.