Clypeastroid :: Clypeastroid (a.) Like or related to the genus Clupeaster; -- applied to a group of flattened sea urchins, with a rosette of pores on the upper side..
Clypeate :: Clypeate (a.) Shaped like a round buckler or shield; scutate.
Clypeate :: Clypeate (a.) Furnished with a shield, or a protective plate or shell..