Best Clypeasteroid
Clypeaster subdepressus is a species of sea biscuit, a type of irregular sea urchin belonging to the family Clypeasteridae. Like other sea biscuits, it is notable for its heavily flattened, disk-like shape and dense covering of short spines, an adaptation that differs significantly from the spherica...
Clypeaster rosaceus is a species of irregular sea urchin, commonly referred to as a sea biscuit, belonging to the Clypeasteridae family. First described by Carl Linnaeus in 1758, the species is characterized by its heavy, dome-shaped calcareous test and dense covering of short spines. It inhabits sh...
Rotula deciesdigitatus is a distinctive species of irregular sea urchin belonging to the Clypeasteroida order, commonly known as sand dollars. It is recognized by its flattened, star-shaped test and the unique digitate, or finger-like, structure of its ambulacral petals. This marine invertebrate is...
Fellaster zelandiae is a species of irregular sea urchin belonging to the family Echinoneidae, endemic to the coastal marine waters of New Zealand. Like other irregular echinoids, it possesses a somewhat flattened, bilateral body structure rather than the perfectly spherical shape of typical sea urc...
