Each leaf is divided into leaflets with toothlike lobes. The pygidium ends in downward pointing toothlike spines. Each branch has three longitudinal rows of toothlike leaves. The columella is plicatulate above, and with a strong toothlike plait at the base. The leaves are a few centimeters long and are deeply cut into toothlike lobes. Their rims are stiffened with chitin and may contain minute toothlike denticles. The blue-green leaves are divided into sharp, toothlike lobes. Chondrichthyans have toothlike scales called dermal denticles or placoid scales. The five petals are white, under one centimeter long, and divided into irregular toothlike lobes.