Best Arbaciid
Arbacia punctulata, commonly known as the Atlantic purple sea urchin, is a marine echinoderm native to the western Atlantic Ocean and the Gulf of Mexico. Described by Jean-Baptiste Lamarck in 1816, the species features a spherical, purple test covered in sharp, defensive spines used to navigate the...
Arbacia dufresnii is a living regular sea urchin of the family Arbaciidae, recorded from Patagonian and Antarctic waters in the cold southern Atlantic region. Blainville described the species in 1825. As a regular echinoid, it has the approximately rounded test, radial symmetry, and movable spines a...
Arbacia stellata, commonly called the black starry sea urchin, is a regular sea urchin in the family Arbaciidae. The species was described by Henri Marie Ducrotay de Blainville in 1825 and occurs in the eastern Pacific, including waters off California and Baja California. Like other regular sea urch...
